Hema Chander Thadhani
Account No:<PHONE_NUMBER>07
IFSC Code: INDB0000605
Indusind Bank
Pay Amount Due + 2% payment handling charges
Example: while paying a due of Rs. 1000, please pay Rs. 1020


TaskVision: Web Deployed WinForms Sample
Here. TaskVision is a full-featured WinForms sample that supports auto-updating over the web and online and offline functionality, as well as some other cool .NET stuff. It includes most of the source for the client and the server as well as a lengthly write-up on just what makes it cool.
Worth checking out as an alternative to href-exes (TaskVision requires one install and auto-updates after that).


Download the latest Certified Health IT Product List
To download a list of certified health IT products or compliance activities listed on the CHPL, please select from one of the categories below in the dropdown menu, and then click the Data File or Definition File button as needed.
- Certified Health IT Products
- 2015/2014/2011 Edition Products: Entire collection of a specified certification edition's certified products, including all data elements. Available as an XML file.
- The 2015 Edition Products file is updated nightly.
- The 2014 Edition Products file and the 2011 Edition Products file are updated quarterly.
- 2015/2014 Edition Summary: Entire collection of a specified certification edition's certified products, with only a subset of data elements included. Data elements included are: Certification edition, CHPL ID, ONC-ACB Certification ID, Certification Date, ONC-ACB Name, Developer Name, Product Name, Version, Practice Type (only for 2014 Edition products), Certification Status, Previous Certifying ACB, Total Number of Corrective Action Plans Over Time, Count of Currently Open Corrective Action Plans, and Certification Criteria to which that Certified Product attests. Available as a CSV file.
- The 2015 Edition Summary file is updated nightly.
- The 2014 Edition Summary file is updated quarterly.
- 2015/2014/2011 Edition Products: Entire collection of a specified certification edition's certified products, including all data elements. Available as an XML file.
- Compliance Activities
- Surveillance Activity: Entire collection of surveillance activity reported to the CHPL. Available as a CSV file.
- Surveillance (Basic): Entire collection of surveillance activity reported to the CHPL, with only basic details about non-conformities. Includes statistics on timeframes related to discovered non-conformities. Available as a CSV file.
- Surveillance Non-Conformities: Collection of surveillance activities that resulted in a non-conformity. This is a subset of the data available in the above "Surveillance Activity" file. Available as a CSV file.
- Direct Review Activity: Entire collection of Direct Review activity reported to the CHPL. Available as a CSV file.
The XML definition files were last modified on March 22, 2021.


Music
Merch
Tour
Media
Press
Contact
Content and stuff here
Content and stuff here
Content and stuff here
Content and stuff here


{% include _head.html %}
{% include _browser-upgrade.html %} {% include _navigation.html %} {% include _feature-image.html %}
{% include _author-bios.html %}
{{ page.title }}
{% include _scripts.html %}


Use the link below to fire pixity and change the images below to high res hotness
Trigger Pixity!
Pixity Core - 1.140204


Thank you for helping us offer a catalog of products you want to buy!
For our testing today, we will offer you 25 sets of three products. Please click on which of the three products you'd most be interested in purchasing.
Please note that you will see the same products multiple times. When selecting a product, we ask that you choose which of those three you find most appealing.


{% load static %} {% load tags %}
Many thanks for your participation! Your preferences were as follows:
{% for duel in duels %}over |
You preferred the {{ duel.winner.composer|humanize_model }} over the {{ duel.loser.composer|humanize_model }}.
{% endfor %}


VirtualizeTimerC uses a single Timer to create up to 255 virtual timers.
See TEP102 for more details.
precision_tag
max_timers


Office 365 Office 365 2013.svg Developer(s) Microsoft Initial release June 28, 2011; 7 years ago Operating system Windows, macOS, Android, iOS Type Software as a service contract Website https://products.office.com/ Office 365 is a line of subscription services offered by Microsoft, as part of the Microsoft Office product line. The brand encompasses plans that allow use of the Microsoft Office software suite over the life of the subscription, as well as cloud-based software as a service products for business environments, such as hosted Exchange Server, Skype for Business Server, and SharePoint among others.
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The Cause : Feature Projects
Our Projects in India
Association for India's Development works with over 100 projects in over 22 states in India in areas such as education, livelihoods, environemtn, agriculture, health, women's empowerment and social justice.
We work with non profits in India that work closely with the community to ensure participation and a voice in their own empowerment. We review projects and all projects are visited by AID volunteers to learn about first hand realities on the ground.
Here are some projects that we wanted to highlight to showcase our parters and the work they are doing on the ground.
Gallery : Feature Projects
Sustainable Agriculture in Sunderbans
Cyclone Aila had devasted the delta area of Sunderbans in 2008 by salinating the land and making the land useless. AID's intervension with several partner organizations started work with 25 farmers at that time and now has expanded to over 10,000 farmers.
Meaningful Youth Education
Our partner, Swanirbar works with over 11000 youths in 50 villages to train them in issues and skills for their immediate surroundings in West Bengal.
They have won awards for their civil participation from the state.
Payvihir Eco Village
AID partnered with local NGO, Khoj to work with local tribal communities who planted 50,000 trees along with other environmental and livelihood initiatives with NREGA.
They won the UNDP biodiversity award in 2014.
RTI on wheels
RTI on wheels has reached 80,000 people in Gujarat, Rajasthan, Maharastra, J&K, & Goa. It has answered 150,000 calls on filing Right to Information applications and taking civic ownership over community development and continues its journey across India.
Save the Girl Child
Amhi Amchya Arogysakhi's Save the Girl Child program works with 9 slums for the healthcare of over 50000 urban slum population raising awareness on women's health issues and has been key to reducing female foeticide in the local population.


Try out our Premium Member services: Virtual Legal Assistant, Query Alert Service and an ad-free experience. Free for one month and pay only if you like it.
1 M.Cr.C No. 15250/2012 21/1/2013 Shri Saurabh Sunder, counsel for the petitioners. Shri Sameer Chile, Government Advocate for the respondent / State.
This petition has been preferred under Section 482 of Cr.P.C for seeking quashment of order dated 21.11.2012 (Annexure A/10) issued summon by respondent under Sections 25, 44 and 47 of Water (Prevention & Control of Pollution) Cess Act, 1977 along with Sections 21, 37, and 40 of The Air (Prevention and Control of Pollution) Act, 1981.
Let notice of this petition be issued to respondents by RAD.
Steps within three working days. Let matter be listed on 18th February,2013 for consideration of stay application.
(Tarun Kumar Kaushal) JUDGE dcs/-


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{$order.address.address_province}{$order.address.address_city} {$order.address.address_county} {$order.address.address_desc}
{$vo.product_name}
￥{$vo.goods_price}
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FJM Associates Jim Gleason - Managing Partner 103 Turk Hill Rd. Victor, NY 14564 Tel:<PHONE_NUMBER> www.fjm-inc.com jimg@fjm-inc.com


Secure
Woman in bath
oil on linen
¯\_(ツ)_/¯
Woman in bath
oil on linen
Portrait of friend
oil on linen
SOLD
Portrait of friend
oil on linen
SOLD
Virgin Mary surrounded by floating light bulbs
oil on linen (taken from pillow case)
Portrait of high school classmate
oil on linen
Giant throwing small people
oil on linen
SOLD
Synthetic aquarium based on puns
oil on linen
200 x 100 cm
Boi and chimp in front of concrete wall
oil on canvas
Study of up and down
oil on canvas
SOLD
Portrait of Luther von Kask, partly painted in the forest during a LARP
oil on linen
SOLD
Teacher screaming with students with clothes over their heads
oil on board
Three maypoles and a sunken cruise ship
oil on linen
Portarit of soldier from Kaskengrad with Gotland landscape in background
oil on paper
SOLD


class: center, middle # Richard Wilde ## CasperJs ### Ask me questions: @rippo ### https://github.com/rippo --- class: center, middle # Why test the UI? ## (end-to-end testing) # What did I try? ## Selenuim, Web Driver, Coypu and now CasperJS --- # What is PhantomJS? PhantomJS is a headless WebKit scriptable with a JavaScript API. It supports: DOM handling, CSS selector, JSON, Canvas, and SVG. * Full web stack * No browser required # What is CasperJS? CasperJS is a navigation scripting & testing utility written in Javascript that depends on PhantomJS. It provides methods & syntactic sugar for doing common tasks such as: * Testing your ui * Screen scraping including screen grabs --- # Wouldn't it be nice... ## to be able to UI test your code changes before you check into source! .center[![](/slides/benice.png)] --- # Agenda 1. Getting setup 2. Screen grab demo 3. Testing scenarios 4. Review Page Object Pattern (with typescript and @code) --- # Getting setup 1. You will need node http://nodejs.org/ 2. Download phantomjs from http://phantomjs.org/download.html `(copy it to %APPDATA%\npm)` 2. Open CMD prompt and install CasperJS (it bundles PhantomJs) ````DOS $ npm install casperjs -g ```` Edit the following file ````DOS $ notepad %APPDATA%\npm\casperjs.cmd ```` 3. To remove dependancy on Python and to use the latest version of Phantom ````DOS @ECHO OFF CLS SET PHANTOMJS_EXECUTABLE=%APPDATA%\npm\phantomjs.exe %~dp0\node_modules\casperjs\bin\casperjs %* ```` 4. Check casper and phantom are installed, it should return `1.1.4` and `2.1.1` ````DOS $ casperjs --version $ phantomjs --version ```` --- #Screen Grab * CasperJS is not just a testing tool it is also great at screen scraping! * It can also take screen shots at different resolutions ##Demo ````JavaScript { viewportSize: { width:1024, height:800 } } ```` --- #Test 01 - Our first test * Look at MVC Site ##Demo --- #Test 01 - Our first test ## What did we just do?## * we do not need to create a new casper instance (allows us to chain tests) ````JavaScript casper.test.begin('Home Page Tests', 3, function (test) { ```` * when the page loaded, we asserted the title was `Home - CasperJS Mvc` * we then asserted that two pieces of text existed * we ran the tests and informed CasperJS we were done ````JavaScript casper.run(function () { test.done(); }); ```` --- #Test 02 - Navigation test ##Demo ````css ul > li:nth-child(2) > a ```` OR ````css a[href='/home/about'] ```` --- #Test 03 - Fill in a form ##Demo #### Spoiler alert... ````JavaScript // assert a selector exists test.assertExists('form[action="/home/contact"]'); // fill in a form, note use fillSelectors NOT deprecated fill this.fillSelectors('form', { "input[name='ContactName']": 'Richard Wilde' }, true); // waits for a selector after a button has been clicked casper.waitForSelector('#EmailAddress', ... ```` --- #Test 04 - Evaluate ##Demo #### Spoiler alert... ````JavaScript // run some javascript/jquery code casper.thenEvaluate(... ```` --- #Test 05 - Command Line Args ##Demo #### Spoiler alert... ````DOS $ casperjs test --baseUrl="http://localhost:43504" test05.js ```` ````JavaScript casper.cli.options.baseUrl ```` --- #some useful pointers... ##Run all tests in a directory (includes sub dirs) ````DOS $ casperjs test --baseUrl="http://localhost:43504" . ```` ##XUnit output (good for TeamCity etc) ````DOS $ casperjs test --xunit=1.xml --baseUrl="http://localhost:43504" . ```` ##Fail fast ````DOS $ casperjs test --fail-fast --baseUrl="http://localhost:43504" . ```` --- #Page Object Pattern .center[![](/slides/Page.Object.png)] --- #Check out these useful links * ####Casper Docs - API documentation http://docs.casperjs.org/en/latest/modules/index.html * ####CasperJS Page Object Pattern - http://jsebfranck.blogspot.co.uk/2014/03/page-object-pattern-with-casperjs.html - http://martinfowler.com/bliki/PageObject.html - https://github.com/SeleniumHQ/selenium/wiki/PageObjects * ####Tell Don’t Ask vs Single Responsibility Principle - http://blog.thepete.net/blog/2013/09/13/assertions-in-page-objects/ * ####Git Repository - https://github.com/rippo/ --- class: center, middle #Questions? SPA's Animations and timings Events and listeners Failed test screen grabs Unit testing --- class: center, middle #Thanks ##Hope you found it useful! Ask me questions on twitter @rippo


--- title: Media - Medium, No Asset, Curated Content, Bulleted Summary tags: object date: 2016/08/06 pattern_number: 1.5 ---


Hippopotamus
A Hippopotamus is a large herbivorous mammal , that lives lives in both land and water. Most people consider them dangerous but only if you invade their territories.
Below are 5 facts about hippos:
- Hippos are most active at night, when they forage for food. They are herbivores, and eat mostly grass and can eat upto 35kg of grass in a night.
- hippos are great swimmers and can hold their breath for up to five minutes underwater. When completely submerged, their ears and nostrils fold shut to keep water out.
- Dominant males are very protective over their group. To warn off rival males, they open their huge mouths and display their long, curved canines! They also make loud grunts and aggressive splashes in the water.
- Female hippos, called cows, give birth every two years, usually to a single calf. Soon after birth, the mother and her baby join up with other cows and calves for protection against predators, such as crocodiles, lions and hyenas.
- Hippos usually live in groups (or “herds”) of around ten to 20 individuals, led by one large dominant male. The other members are females, their young and a few young non-breeding males.
Hippos are amazing.If you would like to learn more about Hippopotamus , CLICK HERE
💖 . www.hippopotamus.com . 2021


|
pf
|
This is a template library for fast particle filtering. Templated abstract base classes for different particle filters are provided (e.g. the Bootstrap Filter, the Auxiliary Particle Filter, Rao-Blackwellized particle filter, etc.), as well as non-abstract (but indeed templated) base classes for closed form filtering algorithms (e.g. Kalman Filter, Hidden Markov Model filter, etc.).
Once you have a certain model in mind, all you have to do is make it into a class that inherits from the filter you want to use!
This is a header-only library, so there is no building necessary. When you use it in another project, make sure to compile with C++11 enabled (-std=c++11
), and to include the include
directory of this project.
Note, also, that this code all makes use of Eigen and Boost.
Don't know how to use this? Check out the examples
directory! Check pf/examples/Makefile
to make sure it jives with your directories, and then run make
. After that, run ./examples ./data/svol_y_data.csv
and you'll see the filtering output from examples/svol_comparison.cpp
.
Click the "DOI" link above. Or, if you're impatient, click 'here' for a Bibtex citation.


This page lists the downloadable CSV data files. For use by superuser only.
{% for downloadable in downloadables %}
{{ downloadable.name }}
{% empty %}
Nothing to download
{% endfor %}


Help & Introduction
Kiri:Moto
is an extensible, multi-purpose slicing
and visualization engine that produces output for
: GCode for 3D printers
: 3 Axis CNC toolpaths
: DXG / SVG cut paths
Learn More
Watch a tutorial on YouTube
Check out the user group on Facebook
File Load & Import
Drag and drop an STL onto the grid
Or load with Function [Import]
Cached file access with Function [+]
Start Working
Select device mode: FDM, CAM, Laser
Select device profile under Devices
Set slicing parameters in right menu
Test slicing settings with Function [Slice]
Preview slicing output with Function [Preview]
Export gcode with Function [Export]
Other ways to use Kiri
-- Inside Onshape
-- Inside Thingiverse
Refer to the Grid.Space Wiki for more information
Keyboard & Mouse Controls
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| wheel | Change Layer |
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<ESC> key closes any dialog in Kiri
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Dismiss this help window to start working


Driving School was founded to provide safe and professional driving instruction to new drivers in the pune(india), DC area. Years later, we are one of the most well-respected local driving schools in the area. We serve hundreds of students each year and our fully licensed driving school is trusted by adults and teenagers alike to provide a patient, courteous, and safe driving experience. Driving is a serious activity that demands responsibility, know-how, and attentiveness from drivers. Our instructors are highly qualified and each of us is skilled in helping even the most nervous of drivers get over their stress and discomfort. Most importantly, we take pride in the quality drivers educated by our school. We want to keep Washington, DC streets safe as well as teen and adult drivers alike..


PART IV. MANAGEMENT OF MUTUAL SAVINGS
AND LOAN ASSOCIATIONS--REPEALED
§§412:7-400 to 408 REPEALED. L 2006, c 228, §50.


NetworkInfo extends Entity
NetworkInfo class
Tags
Table of Contents
- $_propDict : array<string|int, mixed>
- The array of properties available to the model
- __construct() : mixed
- Construct a new Entity
- getBandwidthLowEventRatio() : float|null
- Gets the bandwidthLowEventRatio Fraction of the call that the media endpoint detected the available bandwidth or bandwidth policy was low enough to cause poor quality of the audio sent.
- getBasicServiceSetIdentifier() : string|null
- Gets the basicServiceSetIdentifier The wireless LAN basic service set identifier of the media endpoint used to connect to the network.
- getConnectionType() : NetworkConnectionType|null
- Gets the connectionType Type of network used by the media endpoint. Possible values are: unknown, wired, wifi, mobile, tunnel, unknownFutureValue.
- getDelayEventRatio() : float|null
- Gets the delayEventRatio Fraction of the call that the media endpoint detected the network delay was significant enough to impact the ability to have real-time two-way communication.
- getDnsSuffix() : string|null
- Gets the dnsSuffix DNS suffix associated with the network adapter of the media endpoint.
- getId() : string|null
- Gets the id Read-only.
- getIpAddress() : string|null
- Gets the ipAddress IP address of the media endpoint.
- getLinkSpeed() : int|null
- Gets the linkSpeed Link speed in bits per second reported by the network adapter used by the media endpoint.
- getMacAddress() : string|null
- Gets the macAddress The media access control (MAC) address of the media endpoint's network device.
- getODataType() : string|null
- Gets the ODataType
- getPort() : int|null
- Gets the port Network port number used by media endpoint.
- getProperties() : array<string|int, mixed>
- Gets the property dictionary of the Entity
- getReceivedQualityEventRatio() : float|null
- Gets the receivedQualityEventRatio Fraction of the call that the media endpoint detected the network was causing poor quality of the audio received.
- getReflexiveIPAddress() : string|null
- Gets the reflexiveIPAddress IP address of the media endpoint as seen by the media relay server. This is typically the public internet IP address associated to the endpoint.
- getRelayIPAddress() : string|null
- Gets the relayIPAddress IP address of the media relay server allocated by the media endpoint.
- getRelayPort() : int|null
- Gets the relayPort Network port number allocated on the media relay server by the media endpoint.
- getSentQualityEventRatio() : float|null
- Gets the sentQualityEventRatio Fraction of the call that the media endpoint detected the network was causing poor quality of the audio sent.
- getSubnet() : string|null
- Gets the subnet Subnet used for media stream by the media endpoint.
- getWifiBand() : WifiBand|null
- Gets the wifiBand WiFi band used by the media endpoint. Possible values are: unknown, frequency24GHz, frequency50GHz, frequency60GHz, unknownFutureValue.
- getWifiBatteryCharge() : int|null
- Gets the wifiBatteryCharge Estimated remaining battery charge in percentage reported by the media endpoint.
- getWifiChannel() : int|null
- Gets the wifiChannel WiFi channel used by the media endpoint.
- getWifiMicrosoftDriver() : string|null
- Gets the wifiMicrosoftDriver Name of the Microsoft WiFi driver used by the media endpoint. Value may be localized based on the language used by endpoint.
- getWifiMicrosoftDriverVersion() : string|null
- Gets the wifiMicrosoftDriverVersion Version of the Microsoft WiFi driver used by the media endpoint.
- getWifiRadioType() : WifiRadioType|null
- Gets the wifiRadioType Type of WiFi radio used by the media endpoint. Possible values are: unknown, wifi80211a, wifi80211b, wifi80211g, wifi80211n, wifi80211ac, wifi80211ax, unknownFutureValue.
- getWifiSignalStrength() : int|null
- Gets the wifiSignalStrength WiFi signal strength in percentage reported by the media endpoint.
- getWifiVendorDriver() : string|null
- Gets the wifiVendorDriver Name of the WiFi driver used by the media endpoint. Value may be localized based on the language used by endpoint.
- getWifiVendorDriverVersion() : string|null
- Gets the wifiVendorDriverVersion Version of the WiFi driver used by the media endpoint.
- jsonSerialize() : array<string|int, mixed>
- Serializes the object by property array Manually serialize DateTime into RFC3339 format
- setBandwidthLowEventRatio() : NetworkInfo
- Sets the bandwidthLowEventRatio Fraction of the call that the media endpoint detected the available bandwidth or bandwidth policy was low enough to cause poor quality of the audio sent.
- setBasicServiceSetIdentifier() : NetworkInfo
- Sets the basicServiceSetIdentifier The wireless LAN basic service set identifier of the media endpoint used to connect to the network.
- setConnectionType() : NetworkInfo
- Sets the connectionType Type of network used by the media endpoint. Possible values are: unknown, wired, wifi, mobile, tunnel, unknownFutureValue.
- setDelayEventRatio() : NetworkInfo
- Sets the delayEventRatio Fraction of the call that the media endpoint detected the network delay was significant enough to impact the ability to have real-time two-way communication.
- setDnsSuffix() : NetworkInfo
- Sets the dnsSuffix DNS suffix associated with the network adapter of the media endpoint.
- setId() : Entity
- Sets the id Read-only.
- setIpAddress() : NetworkInfo
- Sets the ipAddress IP address of the media endpoint.
- setLinkSpeed() : NetworkInfo
- Sets the linkSpeed Link speed in bits per second reported by the network adapter used by the media endpoint.
- setMacAddress() : NetworkInfo
- Sets the macAddress The media access control (MAC) address of the media endpoint's network device.
- setODataType() : Entity
- Sets the ODataType
- setPort() : NetworkInfo
- Sets the port Network port number used by media endpoint.
- setReceivedQualityEventRatio() : NetworkInfo
- Sets the receivedQualityEventRatio Fraction of the call that the media endpoint detected the network was causing poor quality of the audio received.
- setReflexiveIPAddress() : NetworkInfo
- Sets the reflexiveIPAddress IP address of the media endpoint as seen by the media relay server. This is typically the public internet IP address associated to the endpoint.
- setRelayIPAddress() : NetworkInfo
- Sets the relayIPAddress IP address of the media relay server allocated by the media endpoint.
- setRelayPort() : NetworkInfo
- Sets the relayPort Network port number allocated on the media relay server by the media endpoint.
- setSentQualityEventRatio() : NetworkInfo
- Sets the sentQualityEventRatio Fraction of the call that the media endpoint detected the network was causing poor quality of the audio sent.
- setSubnet() : NetworkInfo
- Sets the subnet Subnet used for media stream by the media endpoint.
- setWifiBand() : NetworkInfo
- Sets the wifiBand WiFi band used by the media endpoint. Possible values are: unknown, frequency24GHz, frequency50GHz, frequency60GHz, unknownFutureValue.
- setWifiBatteryCharge() : NetworkInfo
- Sets the wifiBatteryCharge Estimated remaining battery charge in percentage reported by the media endpoint.
- setWifiChannel() : NetworkInfo
- Sets the wifiChannel WiFi channel used by the media endpoint.
- setWifiMicrosoftDriver() : NetworkInfo
- Sets the wifiMicrosoftDriver Name of the Microsoft WiFi driver used by the media endpoint. Value may be localized based on the language used by endpoint.
- setWifiMicrosoftDriverVersion() : NetworkInfo
- Sets the wifiMicrosoftDriverVersion Version of the Microsoft WiFi driver used by the media endpoint.
- setWifiRadioType() : NetworkInfo
- Sets the wifiRadioType Type of WiFi radio used by the media endpoint. Possible values are: unknown, wifi80211a, wifi80211b, wifi80211g, wifi80211n, wifi80211ac, wifi80211ax, unknownFutureValue.
- setWifiSignalStrength() : NetworkInfo
- Sets the wifiSignalStrength WiFi signal strength in percentage reported by the media endpoint.
- setWifiVendorDriver() : NetworkInfo
- Sets the wifiVendorDriver Name of the WiFi driver used by the media endpoint. Value may be localized based on the language used by endpoint.
- setWifiVendorDriverVersion() : NetworkInfo
- Sets the wifiVendorDriverVersion Version of the WiFi driver used by the media endpoint.
Properties
$_propDict
The array of properties available to the model
protected
array<string|int, mixed>
$_propDict
Methods
__construct()
Construct a new Entity
public
__construct([array<string|int, mixed> $propDict = array() ]) : mixed
Parameters
- $propDict : array<string|int, mixed> = array()
-
A list of properties to set
Return values
mixed —getBandwidthLowEventRatio()
Gets the bandwidthLowEventRatio Fraction of the call that the media endpoint detected the available bandwidth or bandwidth policy was low enough to cause poor quality of the audio sent.
public
getBandwidthLowEventRatio() : float|null
Return values
float|null —The bandwidthLowEventRatio
getBasicServiceSetIdentifier()
Gets the basicServiceSetIdentifier The wireless LAN basic service set identifier of the media endpoint used to connect to the network.
public
getBasicServiceSetIdentifier() : string|null
Return values
string|null —The basicServiceSetIdentifier
getConnectionType()
Gets the connectionType Type of network used by the media endpoint. Possible values are: unknown, wired, wifi, mobile, tunnel, unknownFutureValue.
public
getConnectionType() : NetworkConnectionType|null
Return values
NetworkConnectionType|null —The connectionType
getDelayEventRatio()
Gets the delayEventRatio Fraction of the call that the media endpoint detected the network delay was significant enough to impact the ability to have real-time two-way communication.
public
getDelayEventRatio() : float|null
Return values
float|null —The delayEventRatio
getDnsSuffix()
Gets the dnsSuffix DNS suffix associated with the network adapter of the media endpoint.
public
getDnsSuffix() : string|null
Return values
string|null —The dnsSuffix
getId()
Gets the id Read-only.
public
getId() : string|null
Return values
string|null —The id
getIpAddress()
Gets the ipAddress IP address of the media endpoint.
public
getIpAddress() : string|null
Return values
string|null —The ipAddress
getLinkSpeed()
Gets the linkSpeed Link speed in bits per second reported by the network adapter used by the media endpoint.
public
getLinkSpeed() : int|null
Return values
int|null —The linkSpeed
getMacAddress()
Gets the macAddress The media access control (MAC) address of the media endpoint's network device.
public
getMacAddress() : string|null
Return values
string|null —The macAddress
getODataType()
Gets the ODataType
public
getODataType() : string|null
Return values
string|null —The ODataType
getPort()
Gets the port Network port number used by media endpoint.
public
getPort() : int|null
Return values
int|null —The port
getProperties()
Gets the property dictionary of the Entity
public
getProperties() : array<string|int, mixed>
Return values
array<string|int, mixed> —The list of properties
getReceivedQualityEventRatio()
Gets the receivedQualityEventRatio Fraction of the call that the media endpoint detected the network was causing poor quality of the audio received.
public
getReceivedQualityEventRatio() : float|null
Return values
float|null —The receivedQualityEventRatio
getReflexiveIPAddress()
Gets the reflexiveIPAddress IP address of the media endpoint as seen by the media relay server. This is typically the public internet IP address associated to the endpoint.
public
getReflexiveIPAddress() : string|null
Return values
string|null —The reflexiveIPAddress
getRelayIPAddress()
Gets the relayIPAddress IP address of the media relay server allocated by the media endpoint.
public
getRelayIPAddress() : string|null
Return values
string|null —The relayIPAddress
getRelayPort()
Gets the relayPort Network port number allocated on the media relay server by the media endpoint.
public
getRelayPort() : int|null
Return values
int|null —The relayPort
getSentQualityEventRatio()
Gets the sentQualityEventRatio Fraction of the call that the media endpoint detected the network was causing poor quality of the audio sent.
public
getSentQualityEventRatio() : float|null
Return values
float|null —The sentQualityEventRatio
getSubnet()
Gets the subnet Subnet used for media stream by the media endpoint.
public
getSubnet() : string|null
Return values
string|null —The subnet
getWifiBand()
Gets the wifiBand WiFi band used by the media endpoint. Possible values are: unknown, frequency24GHz, frequency50GHz, frequency60GHz, unknownFutureValue.
public
getWifiBand() : WifiBand|null
Return values
WifiBand|null —The wifiBand
getWifiBatteryCharge()
Gets the wifiBatteryCharge Estimated remaining battery charge in percentage reported by the media endpoint.
public
getWifiBatteryCharge() : int|null
Return values
int|null —The wifiBatteryCharge
getWifiChannel()
Gets the wifiChannel WiFi channel used by the media endpoint.
public
getWifiChannel() : int|null
Return values
int|null —The wifiChannel
getWifiMicrosoftDriver()
Gets the wifiMicrosoftDriver Name of the Microsoft WiFi driver used by the media endpoint. Value may be localized based on the language used by endpoint.
public
getWifiMicrosoftDriver() : string|null
Return values
string|null —The wifiMicrosoftDriver
getWifiMicrosoftDriverVersion()
Gets the wifiMicrosoftDriverVersion Version of the Microsoft WiFi driver used by the media endpoint.
public
getWifiMicrosoftDriverVersion() : string|null
Return values
string|null —The wifiMicrosoftDriverVersion
getWifiRadioType()
Gets the wifiRadioType Type of WiFi radio used by the media endpoint. Possible values are: unknown, wifi80211a, wifi80211b, wifi80211g, wifi80211n, wifi80211ac, wifi80211ax, unknownFutureValue.
public
getWifiRadioType() : WifiRadioType|null
Return values
WifiRadioType|null —The wifiRadioType
getWifiSignalStrength()
Gets the wifiSignalStrength WiFi signal strength in percentage reported by the media endpoint.
public
getWifiSignalStrength() : int|null
Return values
int|null —The wifiSignalStrength
getWifiVendorDriver()
Gets the wifiVendorDriver Name of the WiFi driver used by the media endpoint. Value may be localized based on the language used by endpoint.
public
getWifiVendorDriver() : string|null
Return values
string|null —The wifiVendorDriver
getWifiVendorDriverVersion()
Gets the wifiVendorDriverVersion Version of the WiFi driver used by the media endpoint.
public
getWifiVendorDriverVersion() : string|null
Return values
string|null —The wifiVendorDriverVersion
jsonSerialize()
Serializes the object by property array Manually serialize DateTime into RFC3339 format
public
jsonSerialize() : array<string|int, mixed>
Return values
array<string|int, mixed> —The list of properties
setBandwidthLowEventRatio()
Sets the bandwidthLowEventRatio Fraction of the call that the media endpoint detected the available bandwidth or bandwidth policy was low enough to cause poor quality of the audio sent.
public
setBandwidthLowEventRatio(float $val) : NetworkInfo
Parameters
- $val : float
-
The value of the bandwidthLowEventRatio
Return values
NetworkInfo —setBasicServiceSetIdentifier()
Sets the basicServiceSetIdentifier The wireless LAN basic service set identifier of the media endpoint used to connect to the network.
public
setBasicServiceSetIdentifier(string $val) : NetworkInfo
Parameters
- $val : string
-
The value of the basicServiceSetIdentifier
Return values
NetworkInfo —setConnectionType()
Sets the connectionType Type of network used by the media endpoint. Possible values are: unknown, wired, wifi, mobile, tunnel, unknownFutureValue.
public
setConnectionType(NetworkConnectionType $val) : NetworkInfo
Parameters
- $val : NetworkConnectionType
-
The value to assign to the connectionType
Return values
NetworkInfo —The NetworkInfo
setDelayEventRatio()
Sets the delayEventRatio Fraction of the call that the media endpoint detected the network delay was significant enough to impact the ability to have real-time two-way communication.
public
setDelayEventRatio(float $val) : NetworkInfo
Parameters
- $val : float
-
The value of the delayEventRatio
Return values
NetworkInfo —setDnsSuffix()
Sets the dnsSuffix DNS suffix associated with the network adapter of the media endpoint.
public
setDnsSuffix(string $val) : NetworkInfo
Parameters
- $val : string
-
The value of the dnsSuffix
Return values
NetworkInfo —setId()
Sets the id Read-only.
public
setId(string $val) : Entity
Parameters
- $val : string
-
The id
Return values
Entity —setIpAddress()
Sets the ipAddress IP address of the media endpoint.
public
setIpAddress(string $val) : NetworkInfo
Parameters
- $val : string
-
The value of the ipAddress
Return values
NetworkInfo —setLinkSpeed()
Sets the linkSpeed Link speed in bits per second reported by the network adapter used by the media endpoint.
public
setLinkSpeed(int $val) : NetworkInfo
Parameters
- $val : int
-
The value of the linkSpeed
Return values
NetworkInfo —setMacAddress()
Sets the macAddress The media access control (MAC) address of the media endpoint's network device.
public
setMacAddress(string $val) : NetworkInfo
Parameters
- $val : string
-
The value of the macAddress
Return values
NetworkInfo —setODataType()
Sets the ODataType
public
setODataType(string $val) : Entity
Parameters
- $val : string
-
The ODataType
Return values
Entity —setPort()
Sets the port Network port number used by media endpoint.
public
setPort(int $val) : NetworkInfo
Parameters
- $val : int
-
The value of the port
Return values
NetworkInfo —setReceivedQualityEventRatio()
Sets the receivedQualityEventRatio Fraction of the call that the media endpoint detected the network was causing poor quality of the audio received.
public
setReceivedQualityEventRatio(float $val) : NetworkInfo
Parameters
- $val : float
-
The value of the receivedQualityEventRatio
Return values
NetworkInfo —setReflexiveIPAddress()
Sets the reflexiveIPAddress IP address of the media endpoint as seen by the media relay server. This is typically the public internet IP address associated to the endpoint.
public
setReflexiveIPAddress(string $val) : NetworkInfo
Parameters
- $val : string
-
The value of the reflexiveIPAddress
Return values
NetworkInfo —setRelayIPAddress()
Sets the relayIPAddress IP address of the media relay server allocated by the media endpoint.
public
setRelayIPAddress(string $val) : NetworkInfo
Parameters
- $val : string
-
The value of the relayIPAddress
Return values
NetworkInfo —setRelayPort()
Sets the relayPort Network port number allocated on the media relay server by the media endpoint.
public
setRelayPort(int $val) : NetworkInfo
Parameters
- $val : int
-
The value of the relayPort
Return values
NetworkInfo —setSentQualityEventRatio()
Sets the sentQualityEventRatio Fraction of the call that the media endpoint detected the network was causing poor quality of the audio sent.
public
setSentQualityEventRatio(float $val) : NetworkInfo
Parameters
- $val : float
-
The value of the sentQualityEventRatio
Return values
NetworkInfo —setSubnet()
Sets the subnet Subnet used for media stream by the media endpoint.
public
setSubnet(string $val) : NetworkInfo
Parameters
- $val : string
-
The value of the subnet
Return values
NetworkInfo —setWifiBand()
Sets the wifiBand WiFi band used by the media endpoint. Possible values are: unknown, frequency24GHz, frequency50GHz, frequency60GHz, unknownFutureValue.
public
setWifiBand(WifiBand $val) : NetworkInfo
Parameters
- $val : WifiBand
-
The value to assign to the wifiBand
Return values
NetworkInfo —The NetworkInfo
setWifiBatteryCharge()
Sets the wifiBatteryCharge Estimated remaining battery charge in percentage reported by the media endpoint.
public
setWifiBatteryCharge(int $val) : NetworkInfo
Parameters
- $val : int
-
The value of the wifiBatteryCharge
Return values
NetworkInfo —setWifiChannel()
Sets the wifiChannel WiFi channel used by the media endpoint.
public
setWifiChannel(int $val) : NetworkInfo
Parameters
- $val : int
-
The value of the wifiChannel
Return values
NetworkInfo —setWifiMicrosoftDriver()
Sets the wifiMicrosoftDriver Name of the Microsoft WiFi driver used by the media endpoint. Value may be localized based on the language used by endpoint.
public
setWifiMicrosoftDriver(string $val) : NetworkInfo
Parameters
- $val : string
-
The value of the wifiMicrosoftDriver
Return values
NetworkInfo —setWifiMicrosoftDriverVersion()
Sets the wifiMicrosoftDriverVersion Version of the Microsoft WiFi driver used by the media endpoint.
public
setWifiMicrosoftDriverVersion(string $val) : NetworkInfo
Parameters
- $val : string
-
The value of the wifiMicrosoftDriverVersion
Return values
NetworkInfo —setWifiRadioType()
Sets the wifiRadioType Type of WiFi radio used by the media endpoint. Possible values are: unknown, wifi80211a, wifi80211b, wifi80211g, wifi80211n, wifi80211ac, wifi80211ax, unknownFutureValue.
public
setWifiRadioType(WifiRadioType $val) : NetworkInfo
Parameters
- $val : WifiRadioType
-
The value to assign to the wifiRadioType
Return values
NetworkInfo —The NetworkInfo
setWifiSignalStrength()
Sets the wifiSignalStrength WiFi signal strength in percentage reported by the media endpoint.
public
setWifiSignalStrength(int $val) : NetworkInfo
Parameters
- $val : int
-
The value of the wifiSignalStrength
Return values
NetworkInfo —setWifiVendorDriver()
Sets the wifiVendorDriver Name of the WiFi driver used by the media endpoint. Value may be localized based on the language used by endpoint.
public
setWifiVendorDriver(string $val) : NetworkInfo
Parameters
- $val : string
-
The value of the wifiVendorDriver
Return values
NetworkInfo —setWifiVendorDriverVersion()
Sets the wifiVendorDriverVersion Version of the WiFi driver used by the media endpoint.
public
setWifiVendorDriverVersion(string $val) : NetworkInfo
Parameters
- $val : string
-
The value of the wifiVendorDriverVersion


A Journey in Three Parts
Let's say we're making a game...
With an in-game store...
And you want to show the player what items they'll receive
There are multiple possible items types:
Each item type has different configuration data and is displayed differently in-game
Card
Energy Refill
Hard Currency
🎉 No extra data! 🎉
Additionally, all items specify some common fields:
Part I
Before we worry about how we'll represent these in our programming language of choice, let's look at how we'll represent their data
... as JSON, of course
Card
{
"name": "Cool Card",
"rarity": 3
}
Energy Refill
{
"energy": "Arena",
"amount": 10
}
Hard Currency
{}
???
Two basic approaches:
[
{
"quantity": 1,
"icon": "card.png",
"name": "Cool Card",
"rarity": 3
},
{
"quantity": 1,
"icon": "arena_energy.png",
"energy": "Arena",
"amount": 5
},
{
"quantity": 10,
"icon": "gem.png"
}
]
[
{
"quantity": 1,
"icon": "card.png",
"data": {
"name": "Cool Card",
"rarity": 3
}
},
{
"quantity": 1,
"icon": "arena_energy.png",
"data": {
"energy": "Arena",
"amount": 5
}
},
{
"quantity": 10,
"icon": "gem.png",
"data": {}
}
]
In both cases, we have some data that is "invariant", and some data that is "variant"
In both approaches, we still need some way to specify how the variant data should be interpreted.
Part II
David, why are you talking about Rust?
{
"quantity": 1,
"icon": "card.png",
"data": {
"name": "Cool Card",
"rarity": 3
}
}
Part III


class: center, middle # Building on graphs with .logo[![graph](images/arangodb_logo.png)] * Mike Williamson --- class: center, middle # GET example.com/employees ```bash mysql> SELECT * FROM employee; +-----+--------+------------+--------+ | id | name | dept | salary | +-----+--------+------------+--------+ | 100 | Thomas | Sales | 5000 | | 200 | Jason | Technology | 5500 | | 300 | Sanjay | Technology | 7000 | | 400 | Nisha | Marketing | 9500 | | 500 | Randy | Technology | 6000 | | 501 | Ritu | Accounting | NULL | +-----+--------+------------+--------+ 6 rows in set (0.01 sec) ``` --- class: center, middle # GET example.com/employee/100 ```bash mysql> SELECT * FROM employee WHERE id = 100; +-----+--------+------------+--------+ | id | name | dept | salary | +-----+--------+------------+--------+ | 100 | Thomas | Sales | 5000 | +-----+--------+------------+--------+ 1 rows in set (0.01 sec) ``` --- class: center, middle # PUT example.com/employee/100 name=Thomas&dept=Sales&salary=5000 ```bash mysql> INSERT INTO employees (name, dept, salary) VALUES ("Thomas", "Sales", "5000"); ``` # DELETE example.com/employee/100 ```bash mysql> DELETE FROM employees WHERE id = 100; ``` --- class: center, middle # The data underneath our apps is changing Data is becoming less tabular * Combining data from different places (APIs, partners, open data) * Modeling the real world (processes/systems/interactions) * Variable relationships * Variable attributes --- class: center, middle # The challenge: ## complex data, without application complexity .small_graph[![graph](images/random_graph.png)] --- class: center, middle # Taking on the hairball with ArangoDB --- class: center, middle # ArangoDB is a document store ```javascript { title: "ArangoDB is awesome.", text: "lorum ipsum...", author: "Mike Williamson", date: "2016-03-12", comments: [ { author:"Mike's Mum"<EMAIL_ADDRESS>text: "That's great honey", }, { "author"<EMAIL_ADDRESS>"title": "Brilliant", "text": "Gucci handbags...", } ], tags:["arangodb","nosql"] } ``` --- class: center, middle .quote["NoSQL tosses away functionality for speed. If you don't need the functionality, you'll be fine, but if you need it in the future, you'll be sorry." -- Peter Wayner, Infoworld] ## The functionality most document stores give up is joins --- class: center, middle ## ArangoDB is also a graph database .float_left[```javascript { "_id" : "nodes/784597657972", "_key" : "784597657972", "_rev" : "784597657972", "name" : "foo" } { "_id" : "nodes/784599624052", "_key" : "784599624052", "_rev" : "784599624052", "name" : "bar" } ```] .float_left[```javascript { "_id" : "nodes/784605981044", "_key" : "784605981044", "_rev" : "784605981044" "_from": "nodes/784597657972", "_to": "nodes/784599624052" } ```] .clear_both[```javascript db._query('RETURN GRAPH_NEIGHBORS("test", {name: "foo"})[*].vertex').toArray() [ [ { "_id" : "nodes/784599624052", "_key" : "784599624052", "_rev" : "784599624052", "name" : "bar" } ] ] ```] --- class: center, middle ## Features vs speed?* .seventy[![graph](images/performance.png)] https://www.arangodb.com/nosql-performance-blog-series/ *Standard vendor benchmark caveats apply --- class: center, middle # A better set of tradeoffs for the data we see * attribute flexibility (document model) * relationship flexibility (graph model) * Doesn't throw away features you need for the sake of speed: * ACID * joins (graph model) * transactions ## Think of it as MongoDB without the eventual regret. --- class: center, middle # Building on graphs --- class: center, middle # Modeling --- class: center, middle ## Illustrative extremes --- class: center, middle ## Compact ```javascript { title: "Data Modeling", text: "lorum ipsum...", author: "Mike Williamson", date: "2016-03-12", comments: [ { author:"Mike's Mum"<EMAIL_ADDRESS>text: "That's great honey", }, { "author"<EMAIL_ADDRESS>"title": "Brilliant", "text": "Gucci handbags...", } ], tags:["arangodb","nosql"] } ``` --- class: center, middle ## Sparse .seventy[![sparse](images/sparse.png)] --- class: center, middle # The prime directive .quote[A main goal in the design of a graph database is the minimization of data access operations needed in graph traversals at query time.] .reference[De Virgilio, Roberto, Antonio Maccioni, and Riccardo Torlone. "Model-driven design of graph databases." Conceptual Modeling. Springer International Publishing, 2014. 172-185.] --- class: center, middle ## Compact by default Assume that everything should be an attribute on a vertex. ### Should this be a vertex? * Will it be accessed on it's own? (ie: showing comments without the post) * Will I be running some graph measurement on it? (like betweenness) * Will it be edited on it's own? * Does/could the attribute have relationships of it's own? (assuming you care) * Would/should this attribute exist without it's parent vertex? --- class: center, middle ## Figuring things out Creating some data in ArangoDB's admin interface helps you think things through. --- class: center, middle ## Creating graph data .seventy[![graph admin](images/graph_admin.png)] --- class: center, middle ## Writing queries .seventy[![aql editor](images/aql_editor.png)] --- class: center, middle # Tradeoffs --- class: center, middle ### Some things get easier * Joiny queries * Complicated/variable relationships * Adding attributes to existing data * Dealing with new types of data ### Some things are harder * Complexity moved from query time to insertion time * Changing the stucture of the graph requires scripting --- class: center, middle # Changing the structure of your graph --- class: center, middle # Data is structure, structure is data Changing structure == refactoring your data. ```javascript > GraphMigration = require('./dist/main').default > gm = new GraphMigration("test") //demote a vertex to being attributes on connected vertices gm.vertexToAttribute({foo: "bar"}, "mygraph", {direction: "inbound"}) //or the other way around gm.attributeToVertex({foo: "bar"}, "mygraph", {direction: "inbound"}) ``` .footnote[https://github.com/sleepycat/graph_migrations] --- class: center, middle # Queries Find, traverse --- class: center, middle ### GET example.com/employee/100 .align_left[```sql FOR vertex IN vertices FILTER vertex.type == "employee" && vertex.id == 100 RETURN vertex ```] .small_graph[![graph](images/single_vertex.png)] --- class: center, middle ### GET example.com/employee/100 .align_left[```sql FOR vertex IN vertices FILTER vertex.type == "employee" && vertex.id == 100 LET neighbors = (RETURN GRAPH_NEIGHBORS("business_graph", vertex, {direction: "outbound"})) RETURN {employee: vertex, employee_details: neighbors} ```] .small_graph[![graph](images/neighbors.png)] --- class: center, middle ### GET example.com/employee/100 .align_left[```sql FOR vertex IN vertices FILTER vertex.type == "employee" && vertex.id == 100 LET neighbors = (RETURN GRAPH_NEIGHBORS("business_graph", vertex, {maxDepth: 3, direction: "outbound"})) RETURN {employee: vertex, employee_details: neighbors} ```] .small_graph[![graph](images/long_traversal.png)] --- class: center, middle ## Edge direction A powerful way to contain your traversals --- class: center, middle ### Consistency is what matters .seventy[![edge direction](images/edge_direction.png)] --- class: center, middle # Inserting data --- class: center, middle ## Insertion is more complex * Often split large blobs of data into vertices/edges * Need to know what data to save and what to connect it to * Order matters ```javascript // for this to exist the vertices have to be created first { "_id" : "vertices/784605981044", "_key" : "784605981044", "_rev" : "784605981044" "_from": "vertices/784597657972", "_to": "vertices/784599624052" } ``` ### ArangoDB gives you options... --- class: center, middle ## Achievement unlocked: V8 inception! .seventy[![v8](images/v8_inception.png)] --- class: center, middle ## Sending Javascript to the server Execute a JS function as a transaction ```javascript var action = String(function (args) { var db = require('org/arangodb').db; // Everthing in here is synchronous // Insert all the things! }); // Send that function to run as a transaction! db.transaction({write: ['vertices', 'edges']}, action, [args]) ``` --- class: center, middle ## Foxx Create a custom endpoint on the server with Foxx ```javascript //app.js var Foxx = require("org/arangodb/foxx"); var app = new Foxx.Controller(applicationContext), arangodb = require("org/arangodb"), db = arangodb.db; app.get("/all_the_things", function(req, res) { db._query('INSERT {foo: "bar"} INTO vertices') return res.json({"inserted": "all the things"}); }); // manifest.json { "name": "insert_all_the_things", "version": "0.0.1", "author": "Mike Williamson", "controllers": { "/": "app.js" }, "defaultDocument": "" } ``` --- class: center, middle ## Foxx .align_left[```sh mike@longshot:~/projects/foxx☺ foxx-manager --server.database=test install . /insert Application insert_all_the_things version 0.0.1 installed successfully at mount point /insert options used: {"configuration":{}} mike@longshot:~/projects/foxx☺ curl localhost:8529/_db/test/insert/all_the_things {"inserted":"all the things"} ```] --- class: center, middle # What all this gets you * Complex data != application complexity * Being able to say "yes" when people ask "Could we also put X in there?" * An entire world of network analysis that is now accessible --- class: center, middle # Questions? * Github: @sleepycat * Twitter: @dexterchief *<EMAIL_ADDRESS>### T-shirts: http://bit.ly/arangodb ### Think graphs are cool? http://www.meetup.com/Ottawa-Graph/ April 19th: Clustering and Graphs: Together at Last!


Image courtesy of here
Image courtesy of here
Image courtesy of here
Neural networks are machine learning models which rely on "neurons," or "units" to compute a function. They learn to approximate a function by intelligently updating the weights of connections between neurons.
Illustration of backpropagation. Image courtesy of here
Overfitting
Example of overfitting. Image courtesy of here
Theoretical Training Difficulties
The vanishing gradient problem is one training difficulty.
Vanishing gradient illustration. Image courtesy of here
Practical Training Difficulties
Old machines were insufficient to realistically train deep nets.
Image courtesy of here
There's very little in the way of deep learning theory beyond the basics. As such, practitioners tend to rely on a number of "tricks."
Residual network proposed by Microsoft. Image courtesy of [2]
Example of adversarial problem. Image courtesy of here
Example of overfitting. Image courtesy of [5]
Stop when validation loss stops decreasing.
Early stopping illustration. Image courtesy of here
Neural Networks are used in conjunction with non-convex losses, so hyperparameters matter!
Example non-convex cost function. Image courtesy of here
Example of generating image for data augmentation. Image courtesy of here
Dropout illustration. Image courtesy of here
Example of model reuse. Image courtesy of here
We will classify data from MNIST (handwritten digits) using Keras. To do this, we will construct a convolutional neural network.
All code from keras examples.
Convolutional Neural Networks exploit spatially-local correlation in images to automatically extract features relevant to the task at hand. Let's look at an example.
LeNet CNN architecture. Image courtesy of here
Animation courtesy of here
from keras.datasets import mnist
from keras.utils import np_utils
(X_train, y_train), (X_test, y_test) = mnist.load_data()
X_train = X_train.astype('float32')
X_test = X_test.astype('float32')
X_train /= 255
X_test /=255
Y_train = np_utils.to_categorical(y_train, nb_classes)
Y_test = np_utils.to_categorical(y_test, nb_classes)
from keras.models import Sequential
from keras.layers import Dense, Dropout, Activation, Flatten
from keras.layers import Convolution2D, MaxPooling2D
kernel_size = (3,3)
model = Sequential()
model.add(Convolution2D(nb_filters, kernel_size[0], kernel_size[1],
border_mode = 'valid',
input_shape=input_shape))
model.add(Activation('relu'))
model.add(Convolution2D(nb_filters, kernel_size[0], kernel_size[1]))
model.add(Activation('relu'))
model.add(MaxPooling2D(pool_size=pool_size))
model.add(Dropout(0.25))
model.add(Flatten())
model.add(Dense(128))
model.add(Activation('relu'))
model.add(Dropout(0.5))
model.add(Dense(nb_classes))
model.add(Activation('softmax'))
model.compile(loss='categorical_crossentropy',
optimizer='adadelta',
metrics=['accuracy'])
model.fit(X_train, Y_train, batch_size=batch_size, nb_epoch=nb_epoch,
verbose=1, validation_data=(X_test, Y_test))
score = model.evaluate(X_test, Y_test, verbose=0)
1) Bengio, Y. and LeCun, Y. (2007). Scaling learning algorithms towards AI. In Large Scale Kernel Machines.
2) He, Kaiming, et al. "Deep residual learning for image recognition." arXiv preprint arXiv:1512.03385 (2015).


Enthusiastic Learner working as a Software Engineer
Contribute as a Scrum Master in agile activities, daily meetings, retrospective meetings,sprint planning, and backlog refinement of the project.
Hands-on experience with Shopfloor tool project and perform Validation on the products.
Adding test scenarios to the validation framework for new issues.
Benchmarking and statistical validation on product performance.
Develop applications based on the requirement of banking entities using MQ , Java andOracle Database and OOP conecpts.
Backend Design and Develop software solutions using Camel Apache, gRPC and SpringBoot Frameworks.
Deploying application images in docker, running applications using helm charts.
Unit testing using Junit and Code optimization.
Modifying Web Frontend for applications on Angular for user Change Requests.
Application Testing using tools like MQ Explorer.
Providing 24/7 Support for CPG (Central Payment Gateway) System Customers withtechnical/non-technical issues.
Backend Design and Develop software solutions to support banking activities using OOPconcepts.
Unit testing using Junit and Code optimization.
Design and Develop Web Front-end for e-payment Systems using Angular.
Design and Develop Web Front-end for e-payment Systems/ File Processing Modules usingSpring-boot.
Application Testing using tools like MQ Explorer
▪ Providing with a Data Analytic framework for better parameter selection and optimization for simulations.
▪ Develop external program using C++ and optimization libraries to trigger the simulation and enhance the performance of the system.
▪ Optimization of Driver model parameters and traffic light phase durations.
▪ Use R and R-Studio for the visualization of the simulation outcomes and for correlation plots.
▪ Business Functionality Development of Clearing House System for Equities, Options and Futures
▪ Designed and developed File Gateway Components and contributed towards the Design of the other Component Development of the system in C++
▪ Development and Testing of the full Internal Message Classes to be used for testing and communication with external entities.
▪ Undergone Training on Presentation Skills Development and Scrum
▪ Design the initial business model and business domain analysis
▪ Pitching the companies technologies to various companies and gathering requirements
▪ Initial Website Interface Development using bootstrap
▪ Develop classes for Embedded System to communicate with GSM modules and Component Integration
GPA: 4.7 / 5
Within top 10% of the class in both semesters
GPA: 3.62 / 4.2
Apart from being a researcher, I enjoy most of my time being outdoors. I enjoy playing Badminton , Cooking and Photography.


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--- title: SQL Tips for Beginners author: Amy Linehan date: '2020-05-06' slug: sql-tips-for-beginners categories: - SQL tags: - SQL subtitle: '' summary: 'Reminders, tips and tricks for programmers new to SQL and for those who just need a refresh! ' authors: ['alinehan'] lastmod: '2020-05-06T16:22:35-07:00' featured: no image: caption: '' focal_point: '' preview_only: no projects: [] ---
Here I’ve complied some simple SQL tips and queries to help new programmers or anyone that needs a refresher. This is not intended to be all incompassing but just contains the things I use reguarly when viewing and filtering data in SQL. All of this information is for Microsoft SQL Server Management Studio on a PC.
About 60% of the time that I open SQL, I go to run a query and get the following error: “Invalid object name”. After about 30 seconds of panic in which I double check my query for any typos, I realize I forgot to add that essential line at the top of my script: “USE database”. In order to use any tables or stored procedures etc. in a query that are saved in a database, you need to let your SQL server know which database you’re using within the server. You only need to run that line of code once and then you can access all tables, stored procedures etc. in that database.
In Microsoft SQL, to run a SQL query, you can use the Excute button with the green arrow button above your query. If you just click the button, your entire query will run. If want to run certain lines of of your SQL query, you can select those lines under the shift key or highlighting them with your mouse then click execute. On your keyboard, the F5 button also works to execute your query.
SQL queries are essentially built on the use of five verbs: SELECT, FROM, WHERE, GROUP BY AND HAVING and are built in that order:
The “FROM” function identifies which table/view/object you want to pull data from. To reference a table/object outside of your database write “FROM SCHEMA_NAME.TABLE_NAME”.
SELECT indicates what you want returned in the query. If a field or calculation is not listed in the SELECT statement, it will not appear in the result of the query. If you want to return all columns, use an asterick sign ("SELECT *") as a shortcut to listing out all the column names. In the following example, the query selects two fields from the table dbo.retail_sales and outputs two other columns that are the product of the fields outputted:
select Quantity,
UnitPrice,
Quantity * UnitPrice,
Quantity * UnitPrice as Revenue
from dbo.retail_sales
| Quantity | UnitPrice | Revenue | |
|---|---|---|---|
| 6 | 2.55 | 15.30 | 15.30 |
| 6 | 3.39 | 20.34 | 20.34 |
| 8 | 2.75 | 22.00 | 22.00 |
| 6 | 3.39 | 20.34 | 20.34 |
| 6 | 3.39 | 20.34 | 20.34 |
| 2 | 7.65 | 15.30 | 15.30 |
| 6 | 4.25 | 25.50 | 25.50 |
| 6 | 1.85 | 11.10 | 11.10 |
| 6 | 1.85 | 11.10 | 11.10 |
| 32 | 1.69 | 54.08 | 54.08 |
The final two fields outputted above are the exact same calculation but the final field just is renamed for a cleaner and easier to follow output. Next, let’s say you just want to glipse at a couple rows in your output because even here you can see this data goes on for almost 1,000 more rows. Tod do this, just add the word “TOP” after your SELECT statement to indicate you want to show the top X number of rows in your output (the default is 10). In the example below, the query outputs the first five rows of the table. If you delete the “5” after the word TOP,it would automatically default to returning the first ten rows of data.
SELECT TOP 5 *
FROM dbo.retail_sales
| InvoiceNo | StockCode | Description | Quantity | InvoiceDate | UnitPrice | CustomerID | Country |
|---|---|---|---|---|---|---|---|
| 536365 | 85123A | WHITE HANGING HEART T-LIGHT HOLDER | 6 | 2010-12-01 08:26:00.0000000 | 2.55 | 17850 | United Kingdom |
| 536365 | 71053 | WHITE METAL LANTERN | 6 | 2010-12-01 08:26:00.0000000 | 3.39 | 17850 | United Kingdom |
| 536365 | 84406B | CREAM CUPID HEARTS COAT HANGER | 8 | 2010-12-01 08:26:00.0000000 | 2.75 | 17850 | United Kingdom |
| 536365 | 84029G | KNITTED UNION FLAG HOT WATER BOTTLE | 6 | 2010-12-01 08:26:00.0000000 | 3.39 | 17850 | United Kingdom |
| 536365 | 84029E | RED WOOLLY HOTTIE WHITE HEART. | 6 | 2010-12-01 08:26:00.0000000 | 3.39 | 17850 | United Kingdom |
You can also use the key word “DISTINCT” that will return the distinct records for the fields in your select statment (ex: SELECT DISTINCT * would return the distinct rows of all fields). This function works similarly to the remove duplicates functionality in Excel.
Okay here is where things get fun y’all. The WHERE statement enables you to filter your data. Similar to filters in other programming languages, you can apply conditional filtering using “AND” and “OR”. Viewing data is great but filtering is really when you get to play around. The key to filtering in SQL (and honestly most other programming languages) is remembering PEMDAS and making sure your parentheses are not only placed in the right location but that you’re not missing any closed paranetheses. This is one of the most common mistakes I make when querying so if you’re getting an error make sure to double check that everything is in the right place and closed.
In the two examples below, you can see that the query intends to focus on two invoice numbers and filter to only show records where the unit price is less than 2.00. However, the second example does not use the parentheses and in its output, you can see two records where the unit price is greater than 2 because the calculation moves from left to right so the only filter on these two records is InvoiceNo = 537446.
SELECT top 5 *
FROM dbo.retail_sales
where unitPrice < 2.00 and (invoiceno = '536365' OR InvoiceNo = '537446')
| InvoiceNo | StockCode | Description | Quantity | InvoiceDate | UnitPrice | CustomerID | Country |
|---|---|---|---|---|---|---|---|
| 537446 | 21135 | VICTORIAN METAL POSTCARD SPRING | 8 | 2010-12-07 09:13:00.0000000 | 1.69 | 18055 | United Kingdom |
| 537446 | 21397 | BLUE POLKADOT EGG CUP | 12 | 2010-12-07 09:13:00.0000000 | 1.25 | 18055 | United Kingdom |
| 537446 | 22948 | METAL DECORATION NAUGHTY CHILDREN | 24 | 2010-12-07 09:13:00.0000000 | 0.85 | 18055 | United Kingdom |
| 537446 | 46000M | POLYESTER FILLER PAD 45x45cm | 2 | 2010-12-07 09:13:00.0000000 | 1.55 | 18055 | United Kingdom |
| 537446 | 72741 | GRAND CHOCOLATECANDLE | 18 | 2010-12-07 09:13:00.0000000 | 1.45 | 18055 | United Kingdom |
SELECT top 5 *
FROM dbo.retail_sales
where unitPrice < 2.00 and invoiceno = '536365' OR InvoiceNo = '537446'
| InvoiceNo | StockCode | Description | Quantity | InvoiceDate | UnitPrice | CustomerID | Country |
|---|---|---|---|---|---|---|---|
| 537446 | 20782 | CAMOUFLAGE EAR MUFF HEADPHONES | 4 | 2010-12-07 09:13:00.0000000 | 5.49 | 18055 | United Kingdom |
| 537446 | 21135 | VICTORIAN METAL POSTCARD SPRING | 8 | 2010-12-07 09:13:00.0000000 | 1.69 | 18055 | United Kingdom |
| 537446 | 21175 | GIN + TONIC DIET METAL SIGN | 12 | 2010-12-07 09:13:00.0000000 | 2.10 | 18055 | United Kingdom |
| 537446 | 21397 | BLUE POLKADOT EGG CUP | 12 | 2010-12-07 09:13:00.0000000 | 1.25 | 18055 | United Kingdom |
| 537446 | 21411 | GINGHAM HEART DOORSTOP RED | 3 | 2010-12-07 09:13:00.0000000 | 4.25 | 18055 | United Kingdom |
The group by statement allows you to group the data by at least one field and then output calculations based off that grouping. The most common calculations that I use regularly are max(), min() and count(). Min and max both return the smallest or largest value respectively of hte field provided by the fields grouped by. For example, in our sample data, grouping by the InvoiceNo and returning the max(UnitPrice) would return the largest unit price of an item sold in each invoiceNo. Let’s look at some examples:
SELECT InvoiceNo , InvoiceDate, max(unitprice) as highest_price
FROM dbo.retail_sales
GROUP BY InvoiceNo , InvoiceDate
| InvoiceNo | InvoiceDate | highest_price |
|---|---|---|
| 561521 | 2011-07-27 17:06:00.0000000 | 4.65 |
| 544582 | 2011-02-21 14:38:00.0000000 | 5.75 |
| 569493 | 2011-10-04 13:35:00.0000000 | 12.50 |
| C551463 | 2011-04-28 16:13:00.0000000 | 10.40 |
| 553466 | 2011-05-17 11:10:00.0000000 | 0.72 |
| 561060 | 2011-07-24 13:30:00.0000000 | 4.15 |
| 565328 | 2011-09-02 13:50:00.0000000 | 8.50 |
| C577815 | 2011-11-22 09:16:00.0000000 | 4.95 |
| 551888 | 2011-05-05 09:29:00.0000000 | 12.75 |
| C571336 | 2011-10-17 11:43:00.0000000 | 3.75 |
A useful trick is using the count(*) or count(distinct FIELD_NAME) functions as the aggregate in a group by query to get the row count for each group:
SELECT InvoiceNo , count(distinct stockcode) as product_ct
FROM dbo.retail_sales
GROUP BY InvoiceNo
| InvoiceNo | product_ct |
|---|---|
| 536365 | 7 |
| 536366 | 2 |
| 536367 | 12 |
| 536368 | 4 |
| 536369 | 1 |
| 536370 | 20 |
| 536371 | 1 |
| 536372 | 2 |
| 536373 | 16 |
| 536374 | 1 |
The final verb, HAVING, is similar to a where clause in that it filters data, but HAVING is only utilized when you have a group by statement. If you have a grouped query and want to filter it, you can use the HAVING statement to filter the rows of your output.
For example, if we add on to our previous example where we calculated the number of distinct products in each invoice to only return invoices with more than 10 products we would do the following:
SELECT InvoiceNo , COUNT(DISTINCT stockcode) as product_ct
FROM dbo.retail_sales
GROUP BY InvoiceNo
HAVING COUNT(DISTINCT stockcode) > 10
| InvoiceNo | product_ct |
|---|---|
| 536367 | 12 |
| 536370 | 20 |
| 536373 | 16 |
| 536375 | 16 |
| 536378 | 19 |
| 536381 | 34 |
| 536382 | 12 |
| 536384 | 13 |
| 536388 | 14 |
| 536389 | 14 |
This has hopfeully been a useful quick overview of how to build queries in SQL and how to get started. Next up, I’m going to write up how to do simple joins in SQL so you can link your tables together.


| Top |
NcmStatsDist1dNcmStatsDist1d — Abstract class for implementing one dimensional probability distributions |
Functions
Functions
ncm_stats_dist1d_ref ()
NcmStatsDist1d *
ncm_stats_dist1d_ref (NcmStatsDist1d *sd1
);
Increases the reference count of sd1
.
ncm_stats_dist1d_free ()
void
ncm_stats_dist1d_free (NcmStatsDist1d *sd1
);
Decreases the reference count of sd1
.
ncm_stats_dist1d_clear ()
void
ncm_stats_dist1d_clear (NcmStatsDist1d **sd1
);
Decreases the reference count of *sd1
and sets the pointer *sd1
to NULL.
ncm_stats_dist1d_prepare ()
void
ncm_stats_dist1d_prepare (NcmStatsDist1d *sd1
);
Prepares the object for calculations.
ncm_stats_dist1d_get_current_h ()
gdouble
ncm_stats_dist1d_get_current_h (NcmStatsDist1d *sd1
);
[virtual get_current_h]
ncm_stats_dist1d_set_compute_cdf ()
void ncm_stats_dist1d_set_compute_cdf (NcmStatsDist1d *sd1
,gboolean compute_cdf
);
Enable/Disable the computation of the CDF and inverse CDF
whenever compute_cdf
is TRUE/FALSE.
ncm_stats_dist1d_get_compute_cdf ()
gboolean
ncm_stats_dist1d_get_compute_cdf (NcmStatsDist1d *sd1
);
ncm_stats_dist1d_eval_p ()
gdouble ncm_stats_dist1d_eval_p (NcmStatsDist1d *sd1
,gdouble x
);
Calculates the value of the probability density at x
.
ncm_stats_dist1d_eval_m2lnp ()
gdouble ncm_stats_dist1d_eval_m2lnp (NcmStatsDist1d *sd1
,gdouble x
);
Calculates the value of the $-2\ln(p(x))$ for the probability density.
It can be unnormalized, the norma can be retrieved using
ncm_stats_dist1d_eval_norma()
.
ncm_stats_dist1d_eval_pdf ()
gdouble ncm_stats_dist1d_eval_pdf (NcmStatsDist1d *sd1
,gdouble x
);
Calculates the value of the probability of the interval [x_i, x
].
ncm_stats_dist1d_eval_norma ()
gdouble
ncm_stats_dist1d_eval_norma (NcmStatsDist1d *sd1
);
Calculates the norma of the distribution. If the probability density is already normalized it will return 1.0.
ncm_stats_dist1d_eval_inv_pdf ()
gdouble ncm_stats_dist1d_eval_inv_pdf (NcmStatsDist1d *sd1
,gdouble u
);
Calculates the value of the random variable $x$ for which the cumulative distribution satisfy $\int_{x_i}^x\mathrm{d}x^\prime p(x^\prime) = u$.
ncm_stats_dist1d_eval_inv_pdf_tail ()
gdouble ncm_stats_dist1d_eval_inv_pdf_tail (NcmStatsDist1d *sd1
,gdouble v
);
Calculates the value of the random variable $x$ for which the cumulative distribution satisfy $\int_{x}^{x_f}\mathrm{d}x^\prime p(x^\prime) = v$.
ncm_stats_dist1d_gen ()
gdouble ncm_stats_dist1d_gen (NcmStatsDist1d *sd1
,NcmRNG *rng
);
Generates a realization of the probability distribution.
ncm_stats_dist1d_eval_mode ()
gdouble
ncm_stats_dist1d_eval_mode (NcmStatsDist1d *sd1
);
Calculates the mode of the distribution.
Property Details
The “abstol”
property
“abstol” double
Absolute tolerance on the random variables.
Owner: NcmStatsDist1d
Flags: Read / Write / Construct
Allowed values: >= 0
Default value: 0
The “compute-cdf”
property
“compute-cdf” gboolean
Whether to compute CDF and inverse CDF.
Owner: NcmStatsDist1d
Flags: Read / Write / Construct
Default value: TRUE
The “max-prob”
property
“max-prob” double
Maximal probability considered.
Owner: NcmStatsDist1d
Flags: Read / Write / Construct
Allowed values: [0,1]
Default value: 1
The “norma”
property
“norma” double
Distribution norma.
Owner: NcmStatsDist1d
Flags: Read
Allowed values: >= 0
Default value: 0
The “reltol”
property
“reltol” double
relative tolerance.
Owner: NcmStatsDist1d
Flags: Read / Write / Construct
Allowed values: [0,1]
Default value: 1e-14


Photo: Johnny, Conor, and John react to footage they just shot on a Manhattan Street. NYC, NY 2015
Video Dazed is a digital autoethnography that examines youth media producers within the skateboarding subculture. Inspired by my own educational experiences growing up, I investigate how young skateboarders interact with technology and media and how it could fit into the broader discussion of reimagining educational environments, specifically the Connected Learning framework. This project employs new media tools to accurately document and portray three groups of youthful skateboarders that utilize media and technology in a truly rich and unique way. By leveraging Connected Learning, this study systematically aligns skateboarding and skateboard media production within the contexts and principles presented in the framework.


Bugs Integrated, Inc.
问题描述 :
Bugs Integrated, Inc. is a major manufacturer of advanced memory chips. They are launching production of a new six terabyte Q-RAM chip. Each chip consists of six unit squares arranged in a form of a 2*3 rectangle. The way Q-RAM chips are made is such that one takes a rectangular plate of silicon divided into N*M unit squares. Then all squares are tested carefully and the bad ones are marked with a black marker.
Finally, the plate of silicon is cut into memory chips. Each chip consists of 2*3 (or 3*2) unit squares. Of course, no chip can contain any bad (marked) squares. It might not be possible to cut the plate so that every good unit square is a part of some memory chip. The corporation wants to waste as little good squares as possible. Therefore they would like to know how to cut the plate to make the maximum number of chips possible.
Task
You are given the dimensions of several silicon plates and a list of all bad unit squares for each plate. Your task is to write a program that computes for each plate the maximum number of chips that can be cut out of the plate.
Finally, the plate of silicon is cut into memory chips. Each chip consists of 2*3 (or 3*2) unit squares. Of course, no chip can contain any bad (marked) squares. It might not be possible to cut the plate so that every good unit square is a part of some memory chip. The corporation wants to waste as little good squares as possible. Therefore they would like to know how to cut the plate to make the maximum number of chips possible.
Task
You are given the dimensions of several silicon plates and a list of all bad unit squares for each plate. Your task is to write a program that computes for each plate the maximum number of chips that can be cut out of the plate.
输入:
The first line of the input file consists of a single integer D (1 <= D <= 5), denoting the number of silicon plates. D blocks follow, each describing one silicon plate. The first line of each block contains three integers N (1 <= N <= 150), M (1 <= M <= 10), K (0 <= K <= MN) separated by single spaces. N is the length of the plate, M is its height and K is the number of bad squares in the plate. The following K lines contain a list of bad squares. Each line consists of two integers x and y (1 <= x <= N, 1 <= y <= M) ?coordinates of one bad square (the upper left square has coordinates [1, 1], the bottom right is [N,M]).
输出:
For each plate in the input file output a single line containing the maximum number of memory chips that can be cut out of the plate.
样例输入:
2 6 6 5 1 4 4 6 2 2 3 6 6 4 6 5 4 3 3 6 1 6 2 6 4
样例输出:
3 4
解题代码:
//* @author import java.util.*; public class Main { static Scanner in = new Scanner(System.in); static int[] p = new int[12]; static { p[0] = 1; for(int i=1; i!=p.length; ++i) p[i] = 3*p[i-1]; } static int get(int s, int i) { return s/p[i]%3; } static int set(int s, int i, int v) { return s+(v-get(s, i))*p[i]; } public static void main(String[] args) { int t = in.nextInt(); while(t-->0) { int n = in.nextInt(); int m = in.nextInt(); if(m>10) while(true); boolean[][] map = new boolean[n+1][m+1]; for(int i=0; i<=n; ++i) map[i][m] = true; for(int j=0; j<=m; ++j) map[n][j] = true; int k = in.nextInt(); while(k-->0) map[in.nextInt()-1][in.nextInt()-1] = true; int[][] dp = new int[m+1][p[m]]; dp[0][p[m]-1]=1; for(int i=0; i!=n; ++i) { for(int j=0; j!=m; ++j) { for(int s=0, _s; s!=p[m]; ++s) { int x = dp[j][s]; if(x==0)continue; int l = get(s, j); _s = set(s, j, Math.min(2, l+1)); dp[j+1][_s] = Math.max(dp[j+1][_s], x); int r = get(s, j+1); if(l!=2||r!=2) continue; if(map[i+0][j+0]) continue; if(map[i+0][j+1]) continue; if(map[i+1][j+0]) continue; if(map[i+1][j+1]) continue; if(!map[i+2][j]&&!map[i+2][j+1]) { _s = set(set(s, j, 0), j+1, 0); if(j+2>m)while(true); dp[j+2][_s] = Math.max(dp[j+2][_s], x+1); } if(get(s, j+2)==2&&!map[i][j+2]&&!map[i+1][j+2]) { _s = set(set(set(s, j, 1), j+1, 1), j+2, 1); if(j+3>m)while(true); dp[j+3][_s] = Math.max(dp[j+3][_s], x+1); } } } int[] tmp = dp[m]; for(int j=m; j>=1; --j) Arrays.fill(dp[j] = dp[j-1], 0); dp[0] = tmp; } int ans = 0; for(int s=0; s!=p[m]; ++s) ans = Math.max(ans, dp[0][s]); System.out.println(ans-1); } } }
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第15行代码，/n/n，应该改为\n\n
这道题目重复了，删掉一个吧
代码可真够长的！
代码是给出了，但是解析的也太不清晰了吧！如 13 abejkcfghid jkebfghicda
第一步拆分为 三部分 (bejk, cfghi, d) * C(13,3)，为什么要这样拆分，原则是什么？
可以根据二叉排序树的定义进行严格的排序树创建和后序遍历操作。如果形成的排序树相同，其树的前、中、后序遍历是相同的，但在此处不能使用中序遍历，因为，中序遍历的结果就是排序的结果。经在九度测试，运行时间90ms，比楼主的要快。
我是来看评论的
97行缺一个分号
很好，找的就是这一题
学习了
后面的掩码变量部分乍一看比较难理解，其实就是把32位按照一个整体来看待。
抱歉，确实是弄错了，原来的代码是错误的，删掉了
第一句可以忽略不计了吧。从第二句开始分析，说明这个花色下的所有牌都会在其它里面出现，那么还剩下♠和♦。第三句，可以排除2和7，因为在两种花色里有。现在是第四句，因为♠还剩下多个，只有是♦B才能知道答案。
博主的C++功底真是好


User Interface
You can use the GHIElectronics.TinyCLR.UI
library to create user interfaces for your application. It is inspired by WPF on the desktop.
Application Management
There is no special requirements when simply drawing. However, the user interface has internal management requirements, that is handled by the application class. Your starting point will look like the following code. Do not forget to add the GHIElectronics.TinyCLR.UI
NuGet package.
using GHIElectronics.TinyCLR.UI;
using GHIElectronics.TinyCLR.Devices.Display;
namespace UserInterfaceExample {
class Program : Application {
public Program(DisplayController d) : base(d) {
}
static void Main() {
var disp = DisplayController.GetDefault();
disp.SetConfiguration(new ParallelDisplayControllerSettings {
//Your display configuration
});
disp.Enable();
var app = new Program(disp);
app.Run(Program.CreateWindow(disp));
}
private static Window CreateWindow(DisplayController disp) {
var window = ...
return window;
}
}
}
Windows
You can have multiple windows in your application but you will at least need one. Here is a complete example that shows a window with a gradient brush background. The code is for UCM Dev board with 4.3 display and UC5550 UCM.
using GHIElectronics.TinyCLR.UI;
using GHIElectronics.TinyCLR.Devices.Display;
using GHIElectronics.TinyCLR.Devices.Gpio;
using GHIElectronics.TinyCLR.Pins;
using GHIElectronics.TinyCLR.UI.Media;
namespace UserInterfaceExample {
class Program : Application {
public Program(DisplayController d) : base(d) {
}
static void Main() {
var disp = DisplayController.GetDefault();
disp.SetConfiguration(new ParallelDisplayControllerSettings {
//Your display configuration
Width = 480,
Height = 272,
DataFormat = DisplayDataFormat.Rgb565,
HorizontalBackPorch = 46,
HorizontalFrontPorch = 16,
HorizontalSyncPolarity = false,
HorizontalSyncPulseWidth = 1,
DataEnableIsFixed = false,
DataEnablePolarity = false,
PixelClockRate = 16_000_000,
PixelPolarity = false,
VerticalBackPorch = 23,
VerticalFrontPorch = 7,
VerticalSyncPolarity = false,
VerticalSyncPulseWidth = 1
});
disp.Enable();
UCMStandard.SetModel(UCMModel.UC5550);
var gpioController = GpioController.GetDefault();
var backlight = gpioController.OpenPin(UCMStandard.GpioPin.A);
backlight.SetDriveMode(GpioPinDriveMode.Output);
backlight.Write(GpioPinValue.High);
var app = new Program(disp);
app.Run(Program.CreateWindow(disp));
}
private static Window CreateWindow(DisplayController disp) {
var window = new Window {
Height = (int)disp.ActiveConfiguration.Height,
Width = (int)disp.ActiveConfiguration.Width
};
window.Background = new LinearGradientBrush(Colors.Blue, Colors.Teal, 0, 0,
window.Width, window.Height);
window.Visibility = Visibility.Visible;
return window;
}
}
}
Elements
A window is not very useful without some elements (controls). There are several built in elements and you can also custom make your own. All elements descend from the UIElement
class. Explore the GHIElectronics.TinyCLR.UI.Controls
namespace for available options.
For the sake of simplifying the rest of this tutorial, we will add private static UIElement Elements()
method that creates and returns the elements. This is then assigned to the Child
of our Window
. You will need to add window.Child = Elements();
right before returning from CreateWindow
.
Tip
This example needs a font.
private static UIElement Elements() {
var txt = new TextBox {
Font = font,
Text = "Hello World!",
HorizontalAlignment = HorizontalAlignment.Center,
VerticalAlignment = VerticalAlignment.Center
};
return txt;
}
Text and TextBox
These 2 elements are very basic and very useful. They are used in many of the examples throught this tutorial.
Panel
A Window
can carry only a single Child
, that is a single element. This is not a concern because the single element can be a container, like a Panel
, which holds multiple elements. You can even have panels within panels and each has its own elements. This example will introduce shapes found in the GHIElectronics.TinyCLR.UI.Shapes
namespace. It also shows an example of the TextBox
element. We will also set margins for a better look.
private static UIElement Elements() {
var panel = new Panel();
var txt1 = new TextBox() {
HorizontalAlignment = HorizontalAlignment.Left,
VerticalAlignment = VerticalAlignment.Top,
};
txt1.Font = font;
txt1.SetMargin(20);
txt1.Text = "Hello World!";
var txt2 = new Text(font, "TinyCLR is Great!") {
ForeColor = Colors.White,
HorizontalAlignment = HorizontalAlignment.Right,
};
txt2.SetMargin(20);
var rect = new Rectangle(200, 10) {
Fill = new SolidColorBrush(Colors.Green),
HorizontalAlignment = HorizontalAlignment.Center,
};
panel.Children.Add(txt1);
panel.Children.Add(txt2);
panel.Children.Add(rect);
return panel;
}
StackPanel
There are also two types of elements that descend from panels, Canvas
and StackPanel
. The canvas allows elements to be added anywhere. Stack panels, on the other had, places elements in order.
We will modify the previous example to use vertical stack. The elements will stack and be arrange to the right and the left. Note that setting vertical alignment will be ignored as the vertical stack does overrides how elements are stacked vertically.
private static UIElement Elements() {
var panel = new StackPanel(Orientation.Vertical);
var txt1 = new TextBox() {
HorizontalAlignment = HorizontalAlignment.Left,
VerticalAlignment = VerticalAlignment.Top,
};
txt1.Font = font;
txt1.SetMargin(20);
txt1.Text = "Hello World!";
var txt2 = new Text(font, "TinyCLR is Great!") {
ForeColor = Colors.White,
HorizontalAlignment = HorizontalAlignment.Right,
};
txt2.SetMargin(20);
var rect = new Rectangle(200, 10) {
Fill = new SolidColorBrush(Colors.Green),
HorizontalAlignment = HorizontalAlignment.Center,
};
panel.Children.Add(txt1);
panel.Children.Add(txt2);
panel.Children.Add(rect);
return panel;
}
Canvas
The canvas provides pixel level control over where element go on the screen. However, like all other components, canvas is aware of the window size and things are aligned from it sides.
private static UIElement Elements() {
var canvas = new Canvas();
var txt = new Text(font, "TinyCLR is Great!") {
ForeColor = Colors.White,
};
var rect = new Rectangle(150, 30) {
Fill = new SolidColorBrush(Colors.Green),
HorizontalAlignment = HorizontalAlignment.Center,
};
Canvas.SetLeft(rect, 20);
Canvas.SetBottom(rect, 20);
canvas.Children.Add(rect);
Canvas.SetLeft(txt, 30);
Canvas.SetBottom(txt, 25);
canvas.Children.Add(txt);
return canvas;
}
Border
This element allows a border to be added. The border starts from the parent element and then the child is constrained to the border's thickness. This example will demonstrate how. The border is this example i set to 10, meaning the window (the parent) will grow inwards the border's thickness and then the child element(s) will fill in. If the children do not fill in the entire space then the border will fill in more than the assigned thickness. Uncomment the 2 alignment lines to see undesired effect of how borders work.
private static UIElement Elements() {
var border = new Border();
border.SetBorderThickness(10);
border.BorderBrush = new SolidColorBrush(Colors.Red)
var txt = new TextBox() {
//HorizontalAlignment = HorizontalAlignment.Center,
//VerticalAlignment= VerticalAlignment.Center,
};
txt.Font = font;
txt.Text = "TinyCLR is Great!";
border.Child = txt;
return border;
}
The fix around this is to add a container and then the container will have a border. In this example, the parent of the border is the canvas instead of the window.
private static UIElement Elements() {
var canvas = new Canvas();
var border = new Border();
border.SetBorderThickness(10);
border.BorderBrush = new SolidColorBrush(Colors.Red);
Canvas.SetLeft(border, 20);
Canvas.SetTop(border, 20);
var txt = new TextBox();
txt.Font = font;
txt.Text = "TinyCLR is Great!";
border.Child = txt;
canvas.Children.Add(border);
return canvas;
}
Button
Buttons are a good place for user input. The button needs a child, typically text. Buttons also have Click
event to handle the user input.
private static UIElement Elements() {
var txt = new Text(font, "Push me!") {
VerticalAlignment = VerticalAlignment.Center,
HorizontalAlignment = HorizontalAlignment.Center,
};
var button = new Button() {
Child = txt,
Width = 100,
Height = 40,
};
button.Click += Button_Click;
return button;
}
private static void Button_Click(object sender, RoutedEventArgs e) {
// Add your code here...
}
TextFlow
This element helps in adding text on multi-line and with different colors and sizes.
private static UIElement Elements() {
var textFlow = new TextFlow();
textFlow.TextRuns.Add("Hello ", font, Colors.Red);
textFlow.TextRuns.Add("World!", font, Colors.Purple);
textFlow.TextRuns.Add(TextRun.EndOfLine);
textFlow.TextRuns.Add("TinyCLR is Great!", font, Colors.Yellow);
return textFlow;
}
ListBox
This element provides a list of options for users to select from.
private static UIElement Elements() {
var listBox = new ListBox();
listBox.Items.Add(new Text(font, "Item 1"));
listBox.Items.Add(new Text(font, "Item 2"));
listBox.Items.Add(new Text(font, "Item 3"));
listBox.Items.Add(new Text(font, "Item 4"));
return listBox;
}
It is also possible to add a separator between items, simply by using a rectangle. This item will be set to be not selectable.
private static UIElement Elements() {
var rect = new Rectangle() {
Height = 1,
Width=30,
Stroke = new Pen(Colors.Black),
};
var separator = new ListBoxItem() {
Child = rect,
IsSelectable = false,
};
separator.SetMargin(2);
var listBox = new ListBox();
listBox.Items.Add(new Text(font, "Item 1"));
listBox.Items.Add(new Text(font, "Item 2"));
listBox.Items.Add(separator);
listBox.Items.Add(new Text(font, "Item 3"));
listBox.Items.Add(new Text(font, "Item 4"));
return listBox;
}
ScrollViewer
The scroll viewer allows for viewing content that are larger than the viewing area. The user input can then be used to shift the content within the viewing area.
The Dispatcher
The User Interface libraries rely on a dispatcher internally to handle system events and updates the invalidated elements. Any changes to any of the elements needs to happen from within the dispatcher. In this example, we will show time on the screen. The time will be in a text box that is updated every second using a Timer
. Since timers run in their own thread, a dispatcher invoke is needed.
static void Counter(object o) {
Application.Current.Dispatcher.Invoke(TimeSpan.FromMilliseconds(1), _ => {
Text txt = (Text)o;
txt.TextContent = DateTime.Now.ToString();
txt.Invalidate();
return null;
}, null);
}
private static UIElement Elements() {
var txt = new Text(font, "Hello World!") {
ForeColor = Colors.White,
VerticalAlignment = VerticalAlignment.Center,
HorizontalAlignment = HorizontalAlignment.Center,
};
Timer timer = new Timer(Counter, txt, 2000, 1000);
return txt;
}
You can also use the dispatcher timer directly
private static UIElement Elements() {
var txt = new Text(font, "Hello World!") {
ForeColor = Colors.White,
VerticalAlignment = VerticalAlignment.Center,
HorizontalAlignment = HorizontalAlignment.Center,
};
var timer = new DispatcherTimer();
timer.Tag = txt;
timer.Tick += Counter;
timer.Interval = new TimeSpan(0, 0, 1);
timer.Start();
return txt;
}
private static void Counter(object sender, EventArgs e) {
var txt = (Text)((DispatcherTimer)sender).Tag;
txt.TextContent = DateTime.Now.ToString();
txt.Invalidate();
}
User Input
A user can feed in input to the graphical interface through touch or button input.
app.InputProvider.RaiseTouch(x, y, touchState, DateTime.UtcNow);
app.InputProvider.RaiseButton(btn, btnState, DateTime.UtcNow);
The touch tutorial has further details.


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uos
– basic “operating system” services¶
|see_cpython_module| python:os
.
The uos
module contains functions for filesystem access and mounting,
terminal redirection and duplication, and the uname
and urandom
functions.
General functions¶
-
uos.
uname
()¶ Return a tuple (possibly a named tuple) containing information about the underlying machine and/or its operating system. The tuple has five fields in the following order, each of them being a string:
sysname
– the name of the underlying systemnodename
– the network name (can be the same assysname
)release
– the version of the underlying systemversion
– the MicroPython version and build datemachine
– an identifier for the underlying hardware (eg board, CPU)
-
uos.
urandom
(n)¶ Return a bytes object with n random bytes. Whenever possible, it is generated by the hardware random number generator.
Filesystem access¶
-
uos.
chdir
(path)¶ Change current directory.
-
uos.
getcwd
()¶ Get the current directory.
-
uos.
ilistdir
([dir])¶ This function returns an iterator which then yields tuples corresponding to the entries in the directory that it is listing. With no argument it lists the current directory, otherwise it lists the directory given by dir.
The tuples have the form (name, type, inode[, size]):
name is a string (or bytes if dir is a bytes object) and is the name of the entry;
type is an integer that specifies the type of the entry, with 0x4000 for directories and 0x8000 for regular files;
inode is an integer corresponding to the inode of the file, and may be 0 for filesystems that don’t have such a notion.
Some platforms may return a 4-tuple that includes the entry’s size. For file entries, size is an integer representing the size of the file or -1 if unknown. Its meaning is currently undefined for directory entries.
-
uos.
listdir
([dir])¶ With no argument, list the current directory. Otherwise list the given directory.
-
uos.
mkdir
(path)¶ Create a new directory.
-
uos.
remove
(path)¶ Remove a file.
-
uos.
rmdir
(path)¶ Remove a directory.
-
uos.
rename
(old_path, new_path)¶ Rename a file.
-
uos.
stat
(path)¶ Get the status of a file or directory.
-
uos.
statvfs
(path)¶ Get the status of a fileystem.
Returns a tuple with the filesystem information in the following order:
f_bsize
– file system block sizef_frsize
– fragment sizef_blocks
– size of fs in f_frsize unitsf_bfree
– number of free blocksf_bavail
– number of free blocks for unprivileged usersf_files
– number of inodesf_ffree
– number of free inodesf_favail
– number of free inodes for unprivileged usersf_flag
– mount flagsf_namemax
– maximum filename length
Parameters related to inodes:
f_files
,f_ffree
,f_avail
and thef_flags
parameter may return0
as they can be unavailable in a port-specific implementation.
-
uos.
sync
()¶ Sync all filesystems.
Terminal redirection and duplication¶
-
uos.
dupterm
(stream_object, index=0, /)¶ Duplicate or switch the MicroPython terminal (the REPL) on the given stream-like object. The stream_object argument must be a native stream object, or derive from
uio.IOBase
and implement thereadinto()
andwrite()
methods. The stream should be in non-blocking mode andreadinto()
should returnNone
if there is no data available for reading.After calling this function all terminal output is repeated on this stream, and any input that is available on the stream is passed on to the terminal input.
The index parameter should be a non-negative integer and specifies which duplication slot is set. A given port may implement more than one slot (slot 0 will always be available) and in that case terminal input and output is duplicated on all the slots that are set.
If
None
is passed as the stream_object then duplication is cancelled on the slot given by index.The function returns the previous stream-like object in the given slot.
Filesystem mounting¶
Some ports provide a Virtual Filesystem (VFS) and the ability to mount multiple
“real” filesystems within this VFS. Filesystem objects can be mounted at either
the root of the VFS, or at a subdirectory that lives in the root. This allows
dynamic and flexible configuration of the filesystem that is seen by Python
programs. Ports that have this functionality provide the mount()
and
umount()
functions, and possibly various filesystem implementations
represented by VFS classes.
-
uos.
mount
(fsobj, mount_point, *, readonly)¶ Mount the filesystem object fsobj at the location in the VFS given by the mount_point string. fsobj can be a a VFS object that has a
mount()
method, or a block device. If it’s a block device then the filesystem type is automatically detected (an exception is raised if no filesystem was recognised). mount_point may be'/'
to mount fsobj at the root, or'/<name>'
to mount it at a subdirectory under the root.If readonly is
True
then the filesystem is mounted read-only.During the mount process the method
mount()
is called on the filesystem object.Will raise
OSError(EPERM)
if mount_point is already mounted.
-
uos.
umount
(mount_point)¶ Unmount a filesystem. mount_point can be a string naming the mount location, or a previously-mounted filesystem object. During the unmount process the method
umount()
is called on the filesystem object.Will raise
OSError(EINVAL)
if mount_point is not found.
-
class
uos.
VfsFat
(block_dev)¶ Create a filesystem object that uses the FAT filesystem format. Storage of the FAT filesystem is provided by block_dev. Objects created by this constructor can be mounted using
mount()
.-
static
mkfs
(block_dev)¶ Build a FAT filesystem on block_dev.
-
static
-
class
uos.
VfsLfs1
(block_dev)¶ Create a filesystem object that uses the littlefs v1 filesystem format. Storage of the littlefs filesystem is provided by block_dev, which must support the extended interface. Objects created by this constructor can be mounted using
mount()
.See Working with filesystems for more information.
-
static
mkfs
(block_dev)¶ Build a Lfs1 filesystem on block_dev.
Note
There are reports of littlefs v1 failing in certain situations, for details see littlefs issue 347.
-
static
-
class
uos.
VfsLfs2
(block_dev)¶ Create a filesystem object that uses the littlefs v2 filesystem format. Storage of the littlefs filesystem is provided by block_dev, which must support the extended interface. Objects created by this constructor can be mounted using
mount()
.See Working with filesystems for more information.
-
static
mkfs
(block_dev)¶ Build a Lfs2 filesystem on block_dev.
Note
There are reports of littlefs v2 failing in certain situations, for details see littlefs issue 295.
-
static
Block devices¶
A block device is an object which implements the block protocol. This enables a
device to support MicroPython filesystems. The physical hardware is represented
by a user defined class. The AbstractBlockDev
class is a template for
the design of such a class: MicroPython does not actually provide that class,
but an actual block device class must implement the methods described below.
A concrete implementation of this class will usually allow access to the
memory-like functionality of a piece of hardware (like flash memory). A block
device can be formatted to any supported filesystem and mounted using uos
methods.
See Working with filesystems for example implementations of block devices using the two variants of the block protocol described below.
Simple and extended interface¶
There are two compatible signatures for the readblocks
and writeblocks
methods (see below), in order to support a variety of use cases. A given block
device may implement one form or the other, or both at the same time. The second
form (with the offset parameter) is referred to as the “extended interface”.
Some filesystems (such as littlefs) that require more control over write operations, for example writing to sub-block regions without erasing, may require that the block device supports the extended interface.
-
class
uos.
AbstractBlockDev
(...)¶ Construct a block device object. The parameters to the constructor are dependent on the specific block device.
-
readblocks
(block_num, buf)¶
-
readblocks
(block_num, buf, offset) The first form reads aligned, multiples of blocks. Starting at the block given by the index block_num, read blocks from the device into buf (an array of bytes). The number of blocks to read is given by the length of buf, which will be a multiple of the block size.
The second form allows reading at arbitrary locations within a block, and arbitrary lengths. Starting at block index block_num, and byte offset within that block of offset, read bytes from the device into buf (an array of bytes). The number of bytes to read is given by the length of buf.
-
writeblocks
(block_num, buf)¶
-
writeblocks
(block_num, buf, offset) The first form writes aligned, multiples of blocks, and requires that the blocks that are written to be first erased (if necessary) by this method. Starting at the block given by the index block_num, write blocks from buf (an array of bytes) to the device. The number of blocks to write is given by the length of buf, which will be a multiple of the block size.
The second form allows writing at arbitrary locations within a block, and arbitrary lengths. Only the bytes being written should be changed, and the caller of this method must ensure that the relevant blocks are erased via a prior
ioctl
call. Starting at block index block_num, and byte offset within that block of offset, write bytes from buf (an array of bytes) to the device. The number of bytes to write is given by the length of buf.Note that implementations must never implicitly erase blocks if the offset argument is specified, even if it is zero.
-
ioctl
(op, arg)¶ Control the block device and query its parameters. The operation to perform is given by op which is one of the following integers:
1 – initialise the device (arg is unused)
2 – shutdown the device (arg is unused)
3 – sync the device (arg is unused)
4 – get a count of the number of blocks, should return an integer (arg is unused)
5 – get the number of bytes in a block, should return an integer, or
None
in which case the default value of 512 is used (arg is unused)6 – erase a block, arg is the block number to erase
As a minimum
ioctl(4, ...)
must be intercepted; for littlefsioctl(6, ...)
must also be intercepted. The need for others is hardware dependent.Unless otherwise stated
ioctl(op, arg)
can returnNone
. Consequently an implementation can ignore unused values ofop
. Whereop
is intercepted, the return value for operations 4 and 5 are as detailed above. Other operations should return 0 on success and non-zero for failure, with the value returned being anOSError
errno code.
-


§601-1 Judiciary. There shall be a branch of government, styled the judiciary. [L 1892, c 57, §1; RL 1925, §2211; RL 1935, §3570; RL 1945, §9571; RL 1955, §213-1; am L 1959, c 259, §1(a); HRS §601-1; am L 1974, c 159, §14]
Cross References
Judicial power vested in supreme court and circuit courts, and in inferior courts established by legislature, see Const. art. VI, §1.