Sometimes a flow of existing walk-through needs to be changed while some of the users already have an in-progress state.
In this case you might need to change the existing user state in order to make it valid for the updated flow.
When writing migration logic you create a new version for each migration.
You should never modify old migrations (that have been released), instead you create a new version that will run on top of it. The runtime will make sure to
run only the new migrations that are required for the existing state.
Click > Inspect > Application > Local Storage then you should see the key bdcWalkthrough to see the state before migration,
then click the Migrate button. The migrationVersion value holds the latest migration that occurred.


Version History¶
v0.0.1
Use numerical methods.
Cannot return Rationals and intervals.
v0.0.2
Use numerical methods.
Cannot return Rationals and intervals.
Add support for all alphebet characters for the variable.
Add support for - operator.
Add support for constants before variables.
v0.0.3
Abandon numercial methods, use
itertools.product
.Able to return Rationals, still cannot return intervals.
Add 10 test cases.
v0.0.4
Abandon
itertools.product
, use combinations of intervals as the core idea.Able to return Rationals and intervals.
Add
main.py
.Modify :
setup.py
.Able to solve linear equations without min or max terms.
Test around 20 cases.
v0.1.0
Restructure with classes.
Add basic error-handling.
Add multiple functions and improve readability.
Add more edge cases.
Add more test cases.
v0.1.4
Incorporate :
matplotlib
and now able to plot equations.Add documentation.


Visualizes panel data with dichotomous treatments. It has two main functionalities: (1) it visualizes the treatment and missing-value statuses of each observation in a panel/time-series-cross-sectional (TSCS) dataset; and (2) it plots the outcome variable (either continuous or discrete) in a time-series fashion.
| Version: | 1.0.5 |
| Depends: | R (≥ 2.10) |
| Imports: | ggplot2 (≥ 2.1.0), gridExtra, grid |
| Published: | 2018-08-20 |
| Author: | Licheng Liu, Yiqing Xu |
| Maintainer: | Yiqing Xu <yiqingxu at ucsd.edu> |
| License: | GPL-2 |
| URL: | http://yiqingxu.org/software/panelView/panelView.html |
| NeedsCompilation: | no |
| Materials: | README |
| CRAN checks: | panelView results |
| Reference manual: | panelView.pdf |
| Package source: | panelView_1.0.5.tar.gz |
| Windows binaries: | r-devel: panelView_1.0.5.zip, r-release: panelView_1.0.5.zip, r-oldrel: panelView_1.0.5.zip |
| OS X binaries: | r-release: panelView_1.0.5.tgz, r-oldrel: panelView_1.0.5.tgz |
| Old sources: | panelView archive |
Please use the canonical form https://CRAN.R-project.org/package=panelView to link to this page.


Methods summary
public
|
#
index( )
Retrieve a list of Notes
Request: GET /api/notes Accept: application/json Authorization: Bearer your_api_token
Response example: HTTP 200 {"success":true,"results":[{"id":2,"created_at":"2017-02-17 19:45:01","updated_at":"2017-02-17 19:45:04","content":"test","Pickup milk.":"[\"shopping\"]"}]}
|
public
|
#
store( Illuminate\Http\Request $request )
Create a new Note
Request: POST /api/notes Accept: application/json Authorization: Bearer your_api_token
content: "Pickup milk."
Response example: HTTP 201 Location: http://localhost:8000/api/notes/1 {"success":true,"results":[{"id":2,"created_at":"2017-02-17 19:45:01","updated_at":"2017-02-17 19:45:04","content":"test","Pickup milk.":"[\"shopping\"]"}]}
Error example HTTP 400 {success: false, errors: [{"content must be less than 255 characters"}]}
|
public
|
#
show( App\Note $note )
Display the Note specified by a given id
Display the Note specified by a given id
Request: GET /api/notes/3 Accept: application/json Authorization: Bearer your_api_token
Response example: HTTP 200 {"success":true,"results":[{"id":2,"created_at":"2017-02-17 19:45:01","updated_at":"2017-02-17 19:45:04","content":"test","Pickup milk.":"[\"shopping\"]"}]}
Error example 1 HTTP 404
|
public
|
#
update( Illuminate\Http\Request $request, App\Note $note )
Update the Note specified by id
Request:
PUT /api/notes/1 or PATCH /api/notes/3
Content-Disposition: x-www-form-urlencoded
Accept: application/json
Authorization: Bearer your_api_token
Update the Note specified by id
Request: PUT /api/notes/1 or PATCH /api/notes/3 Content-Disposition: x-www-form-urlencoded Accept: application/json Authorization: Bearer your_api_token
content: "Go to the other store."
Response example: HTTP 200 {"success":true,"results":[{"id":2,"created_at":"2017-02-17 19:45:01","updated_at":"2017-02-17 19:45:04","content":"test","Go to the other store.":"[\"shopping\"]"}]}
Error example HTTP 404
Error example 2 HTTP 400 {success: false, errors: [{"content must be less than 255 characters"}]}
|
public
|
#
destroy( App\Note $note )
Destroy the Note specified by id
Destroy the Note specified by id
Request: DELETE /api/notes/1 Accept: application/json Authorization: Bearer your_api_token
Response example: HTTP 200 {success: true}
Error example HTTP 404
|
public
|
#
tag( App\Note $note, $tag )
Tag a Note
Request:
POST /api/notes/tags/1/shopping
Accept: application/json
Authorization: Bearer your_api_token
Response example:
HTTP 200
{"success":true,"results":[{"id":2,"created_at":"2017-02-17 19:45:01","updated_at":"2017-02-17 19:45:04","content":"test","Pickup milk.":"[\"shopping\"]"}]}
Error example
HTTP 404
Error example 2
HTTP 400
{success: false, errors: [{"only 5 tags are allowed per note"}]}
Tag a Note
Request: POST /api/notes/tags/1/shopping Accept: application/json Authorization: Bearer your_api_token
Response example: HTTP 200 {"success":true,"results":[{"id":2,"created_at":"2017-02-17 19:45:01","updated_at":"2017-02-17 19:45:04","content":"test","Pickup milk.":"[\"shopping\"]"}]}
Error example HTTP 404
Error example 2 HTTP 400 {success: false, errors: [{"only 5 tags are allowed per note"}]}
|
protected
Illuminate\Http\JsonResponse
|
#
success( $results = null )
Wrapper for successful responses
Wrapper for successful responses
Returns
Illuminate\Http\JsonResponse
|
protected
Illuminate\Http\JsonResponse
|
#
failure( $errors )
Wrapper for Bad Request (400) response
Wrapper for Bad Request (400) response
Returns
Illuminate\Http\JsonResponse
|


Ford Mustang Mach-E Versus Other Mustangs: How does It Compare?
Here's a by-the-numbers look at the Mach-E compared to its pony car stablemates.
by Christopher SmithMany different engines have graced the Ford Mustang throughout its 55-year history, but the pony car's fundamental formula has never changed. Whether there was a four-cylinder, six-cylinder, or a thumping V8 delivering power, it was always a sporty 2+2 coupe with two doors and power going to just the rear wheels. With the new Mustang Mach-E, Ford is rebooting that formula in the hope of capturing the hearts of buyers seeking an exciting family vehicle in the ever-expanding crossover realm. And it's an all-electric affair to boot.
The Mach-E Is Here:
We'll leave such a debate on Ford's decision to name this a Mustang for later discussion. We'll also not dive into all the details of this new EV crossover, because we've covered it head-to-toe in our Mach-E debut article. Being that Ford brands this vehicle as a Mustang, we thought it wise to do a modest comparison between the Mach-E and its existing stablemates to see just how much of a Mustang it really is. Of course there are familiar styling cues, but that alone doesn't make the Mach-E worthy of its badge. What about things like size, and the most important metric in the eyes of enthusiasts, performance?
Gallery: 2020 Ford Mustang Mach-E
Let’s jump right into the mix with a performance comparison, but first a couple of items of note. Ford only offers estimates on 0-60 times for the Mach-E right now, so those numbers are subject to change. Also, ER stands for extended range in this chart, reflecting different battery options available for various Mach-E models.
| Model | Horsepower | Torque | 0-60 MPH | Range (in miles) | Engine / Motor |
| Mach-E Select | 255 (RWD & AWD) | 306 lb-ft (RWD) 417 lb-ft (AWD) | Low-6-sec. (RWD) Mid-5-sec. (AWD) |
230 (RWD) 210 (AWD) |
Single Electric Motor (RWD) Dual Electric Motors (AWD) |
| Mach-E Premium / First Edition / California Rte 1 | 255 (RWD & AWD) 282 (ER RWD) 332 (ER AWD) |
306 lb-ft (RWD) 417 lb-ft (AWD) | Mid-6-sec. (ER RWD) Low-6-sec. (RWD) Mid-5-sec. (AWD) |
230 (RWD) 300 (ER RWD) 210 (AWD) 270 (ER AWD) |
Single Electric Motor (RWD) Dual Electric Motors (AWD) Note: First Edition is AWD only, California Route 1 is RWD only. |
| Mach-E GT | 459 (AWD) | 612 lb-ft (AWD) | Mid-3-sec. (AWD) | 235 (ER AWD) | Dual Electric Motors (AWD) |
| EcoBoost | 310 (RWD) | 350 lb-ft (RWD) | 4.5 sec. | Est. 400 (based on combined MPG) | 2.3-liter turbocharged I4 |
| GT | 460 (RWD) | 420 lb-ft (RWD) | 3.9 sec. | Est. 305 (based combined MPG) | 5.0-liter V8 |
| Shelby GT350 | 526 (RWD) | 429 lb-ft (RWD) | 4.0 sec. | Est. 256 (based on combined MPG) | 5.2-liter flat-plane-crank V8 |
| Shelby GT500 | 760 (RWD) | 625 lb-ft (RWD) | 3.3 sec. | Est. 224 (based on combined MPG) | Supercharged 5.2-liter V8 |
At least when it comes to straight-line performance, the Mach-E doesn’t really live up to the standards of its traditional two-door siblings. A base-model EcoBoost will easily outrun all but the high-end GT model, however, a GT-to-GT showdown would have the gas-burning 5.0 V8 seeing electric taillights. As far as range is concerned, only an extended-range Mach-E with rear-wheel drive can match anything from the fossil fuel team. Still, the performance stats show the Mach-E isn't slow by any means, especially for a four-door crossover with room for cargo and five people – something no standard Mustang could ever accomplish.
Speaking of which, let’s take a look at our second set of numbers. Size-wise, it’s rather interesting to see how this crossover stacks up to traditional Mustangs.
| Model | Wheelbase | Length | Width | Height | Cargo Space |
| Mach-E (all models) | 117 inches | 186 inches | 74 inches | 63 inches | 29 cubic feet interior, 4.8 cubic feet in front trunk, 59.6 cubic feet with rear seats folded. |
| Mustang Coupe (all models) | 107.1 inches | 188.3 inches | 75.4 inches | 54.4 inches | 13.5 cubic feet |
Here's where the Mach-E's Mustang DNA seems to show through, at least in exterior dimensions. There are certainly some differences, but despite two extra doors and seating for five, the Mach-E's overall length is actually a bit shorter compared to the coupe. It's also just a touch wider, but of course, the big difference is in height. It's more than just added ground clearance though, as this Mustang needs to consider space for its passengers and cargo. Obviously, the Mach-E with its flat floor and extra headroom vastly outshines the traditional Mustang for interior volume. Then again, the traditional Mustang was never concerned with such things.
Like it or not, the four-door Mustang crossover is here. The numbers certainly show some similarities to the classic coupe, and Ford tells us this EV is a fun-to-drive machine as well, even without big power. That assessment will have to wait for a first drive, but the larger question is whether its Mustang branding will help this crossover reach new buyers, or if it will do irreparable damage to the storied nameplate while failing to live up to its own name. With production models not arriving until late 2020, that’s a question we’ll have plenty of time to ponder.


Choose your super cryptocurrency or become one and choose your super powers in the Komodo ecosystem
Help me and vote this infographic on reddit, thanks
https://t.co/vcOnSB9RAk
ComputerGenie 👴👴👴02-Oct-18 08:22 PM
Komodo is catching up..
Komodo is leading the way
NicoSama02-Oct-18 08:59 PM
One help me?
How i create wallet for pirate.black?

Cryptoon02-Oct-18 09:00 PM
No sorry
#italian or #support or #deleted-channel
NicoSama02-Oct-18 09:03 PM
I have error missing proving key and missing verify key
NicoSama02-Oct-18 09:15 PM
i create the wallet
DesignBlock03-Oct-18 01:58 AM
@ComputerGenie 👴👴👴 in tech yes.. ready for mass adoption.. the world need to know ir exists..
doesn't ever see a time where he'd want to look at the world's largest jumble of indecipherable crypto ads
jpsyduck03-Oct-18 06:17 PM
any news on the contest? been 2 days since deadline and no announcement
ComputerGenie 👴👴👴03-Oct-18 06:18 PM
"the contest"? Because in the entire Kmoodo ecosystem there's only 1?(edited)
jpsyduck03-Oct-18 06:20 PM
ok... the infographic contest.
ComputerGenie 👴👴👴03-Oct-18 06:21 PM
ok... "the infographic contest"? Because in the entire Kmoodo ecosystem there's only 1?
jpsyduck03-Oct-18 06:22 PM
seeing how people have been posting entries on this page i didnt think this would be so difficult.(edited)
ComputerGenie 👴👴👴03-Oct-18 06:23 PM
in scrolling 9 graphic posts up, I see entries for 2 completely different infographic topics(edited)
jpsyduck03-Oct-18 06:25 PM
thanks for your help.

ComputerGenie 👴👴👴03-Oct-18 06:38 PM
@MoldyLunchbox well, you can always lend me your mind-reading skills and then I'll know what each user is thinking and refuses to give details about, then I can better serve your PC version of how my replies should be
SHossain03-Oct-18 06:38 PM
Yassin03-Oct-18 06:39 PM
MoldyLunchbox03-Oct-18 06:39 PM
You just don't have to be rude. It's not complicated.
Yassin03-Oct-18 06:39 PM
ComputerGenie 👴👴👴03-Oct-18 06:39 PM
You just don't have to be rude.
When you find the proper cocktail of drugs that makes me be someone else, please let me know(edited)
MoldyLunchbox03-Oct-18 06:40 PM
I doubt there's any medication for the mixture of shit you were bred from.
ComputerGenie 👴👴👴03-Oct-18 06:41 PM
doesn't help
1
@MoldyLunchbox My parents are wonderful people and I turned out this way in-spite of them, not because of them
jpsyduck03-Oct-18 06:43 PM
I think someone just needs to rub your lamp, genie.
MoldyLunchbox03-Oct-18 06:44 PM
If they were that wonderful they'd have taken a rendez-vous at Planned Parenthood.
1
2
1
ComputerGenie 👴👴👴03-Oct-18 06:44 PM
I think someone just needs to rub your lamp, genie.
Are you offering?
1
1
1
MoldyLunchbox03-Oct-18 06:44 PM
@jpsyduck Be gentle, it's probably his first time.
jpsyduck03-Oct-18 06:44 PM
i did before, you couldnt handle it(edited)
MoldyLunchbox03-Oct-18 06:44 PM
Ouch.
SHossain03-Oct-18 06:45 PM
guys, please use #talk-other-topics . keep this channel with general KMD talk.
MoldyLunchbox03-Oct-18 06:45 PM
Sorry about that, Sadam.
ComputerGenie 👴👴👴03-Oct-18 06:45 PM
@SHossain always spoils my fun
1
1
jpsyduck03-Oct-18 06:45 PM
@SHossaindo you know whats going on with the 5k kmd infographic contest that was due october 1st?(edited)
SHossain03-Oct-18 06:46 PM
i'm sorry. i don't know. you need to ask in #komodo-team@Daniel CP or @Audo can answer them
jpsyduck03-Oct-18 06:46 PM
thanks
MoldyLunchbox03-Oct-18 06:47 PM
There you go, a decent human being.
 Super heroes or villains? #KMD #Komodo #KomodoPlatform
ComputerGenie 👴👴👴03-Oct-18 07:05 PM
steals that pic
1
Daniel CP03-Oct-18 07:08 PM
@jpsyduck The marketing team has started reviewing all the infographics. For now, the plan is to release a list of finalists at the end of the week and hold a round of community voting. Then the team will take community voting and feedback into consideration, make some tough decisions, and announce the winners next week (~Oct 8).
Are you KomodoPlatform enthusiast? I encourage you to design a Komodo super hero.  #KMD #KOMODO #KomodoPlatform
1
1
1
DesignBlock03-Oct-18 10:55 PM
@Daniel CP no longer October 15 for announcement of winners?
just get more than 10 KMD, it starts earning 5% APR
djwillz04-Oct-18 12:00 PM
can i use agama wallet from ther site to get 5 percent
jl777c04-Oct-18 12:00 PM
the blockchain awards the 5%
djwillz04-Oct-18 12:01 PM
so im good to go with that wallet
BlockTech04-Oct-18 12:02 PM
Yes, just download agama, get an address, buy > 10 kmd, move it to your wallet, and keep it in there. You'll earn 5% "Interest" per years on your 10kmd.
you just have to claim it once a month
djwillz04-Oct-18 12:02 PM
cool i thought it was 5 percent a month i read lol
cheers guys for your help
SHossain04-Oct-18 12:21 PM
@BlockTech the correct word is Reward not interest


Listeners and LDS¶
Listener configuration overview
Listener¶
{
"name": "...",
"address": "{...}",
"filter_chains": [],
"use_original_dst": "{...}",
"per_connection_buffer_limit_bytes": "{...}",
"drain_type": "..."
}
- name
- (string) The unique name by which this listener is known. If no name is provided,
Envoy will allocate an internal UUID for the listener. If the listener is to be dynamically
updated or removed via LDS a unique name must be provided.
By default, the maximum length of a listener’s name is limited to 60 characters. This limit can
be increased by setting the
--max-obj-name-len
command line argument to the desired value.
- address
- (Address, REQUIRED) The address that the listener should listen on. In general, the address must be unique, though that is governed by the bind rules of the OS. E.g., multiple listeners can listen on port 0 on Linux as the actual port will be allocated by the OS.
- filter_chains
(FilterChain, REQUIRED) A list of filter chains to consider for this listener. The FilterChain with the most specific FilterChainMatch criteria is used on a connection.
Attention
In the current version, multiple filter chains are supported only so that SNI can be configured. See the FAQ entry on how to configure SNI for more information. When multiple filter chains are configured, each filter chain must have an identical set of filters. If the filters differ, the configuration will fail to load. In the future, this limitation will be relaxed such that different filters can be used depending on which filter chain matches (based on SNI or some other parameter).
- use_original_dst
- (BoolValue) If a connection is redirected using iptables, the port on which the proxy receives it might be different from the original destination address. When this flag is set to true, the listener hands off redirected connections to the listener associated with the original destination address. If there is no listener associated with the original destination address, the connection is handled by the listener that receives it. Defaults to false.
- per_connection_buffer_limit_bytes
- (UInt32Value) Soft limit on size of the listener’s new connection read and write buffers. If unspecified, an implementation defined default is applied (1MiB).
- drain_type
- (Listener.DrainType) The type of draining to perform at a listener-wide level.
Enum Listener.DrainType¶
- DEFAULT
- (DEFAULT) Drain in response to calling /healthcheck/fail admin endpoint (along with the health check filter), listener removal/modification, and hot restart.
- MODIFY_ONLY
- Drain in response to listener removal/modification and hot restart. This setting does not include /healthcheck/fail. This setting may be desirable if Envoy is hosting both ingress and egress listeners.
Filter¶
{
"name": "...",
"config": "{...}"
}
- name
(string, REQUIRED) The name of the filter to instantiate. The name must match a supported filter. The built-in filters are:
- config
- (Struct) Filter specific configuration which depends on the filter being instantiated. See the supported filters for further documentation.
FilterChainMatch¶
Specifies the match criteria for selecting a specific filter chain for a listener.
{
"sni_domains": []
}
FilterChain¶
A filter chain wraps a set of match criteria, an option TLS context, a set of filters, and various other parameters.
{
"filter_chain_match": "{...}",
"tls_context": "{...}",
"filters": [],
"use_proxy_proto": "{...}"
}
- filter_chain_match
- (FilterChainMatch) The criteria to use when matching a connection to this filter chain.
- tls_context
- (DownstreamTlsContext) The TLS context for this filter chain.
- filters
- (Filter) A list of individual network filters that make up the filter chain for connections established with the listener. Order matters as the filters are processed sequentially as connection events happen. Note: If the filter list is empty, the connection will close by default.
- use_proxy_proto
- (BoolValue) Whether the listener should expect a PROXY protocol V1 header on new connections. If this option is enabled, the listener will assume that that remote address of the connection is the one specified in the header. Some load balancers including the AWS ELB support this option. If the option is absent or set to false, Envoy will use the physical peer address of the connection as the remote address.


Configure the network in a way that does not allow the cardholder data environment to have direct Internet access.
Denying the cardholder data environment Internet connectivity prevents the potential attackers from being able to conduct attacks against it.
Remove any routes from the router configuration that allow Internet access to the cardholder data environment. Remove any port forwarding rules from the firewalls and/or routers that allow Internet access to the cardholder data environment. Repeat the How to Check processes to ensure that changes have not accidentally introduced Internet connectivity in the cardholder environment.


{% extends "skeleton/_base.html" %} {% block content %}
Hello, I'm Steve.
I'm a programmer, photographer, dancer & bassist from Rochester, New York.
If you want to get in touch with me, email is best.


--- layout: post title: Good Olde Chicken Soup date: 2010-10-20 22:21:46.000000000 -04:00 categories: - Gastronomic Explosions - aka Yummy Food/Recipes tags: - Chicken soup - Gluten free - Soup status: publish type: post published: true meta: _edit_last: '1' _wp_old_slug: '' aktt_notify_twitter: 'no' dsq_thread_id: '1188077638' author: login: cint email<EMAIL_ADDRESS>display_name: Jacinta first_name: Jacinta last_name: '' ---
Jairah and I have been feeling a bit under the weather the last couple of days. I always crave chicken soup when unwell. This is a really basic recipe that tastes SO good. The delicious flavour comes from the homemade stock and the cumin adds a nice edge. It is made in two stages. Of course you don't have to feel unwell to enjoy the goodness.
Chicken Stock
1 whole chicken
1 onion - peeled and roughly chopped into 4
Enough water to cover chicken
1 tbsp oil
In a large pot fry the onion with the oil for a couple of minutes then add the whole chicken. Lightly brown on both sides (this is what will add the colour to your soup). Be careful not to burn the onion or chicken. Pour in enough water to cover the chicken. Place lid ajar on pot and gently boil for a couple of hours. Turn off heat and when cool enough, place in fridge. Leave overnight for better flavour.
The next day remove from fridge and skim off any reside on the surface and disgard. Remove the chicken and strip the meat off the bone. Chop up the meat and discard the skin and bones. Drain off stock liquid through a sieve into a bowl and put aside. Discard the cooked onion.
To make soup
1 onion, chopped finely
1 1/2 tsp cumin powder
Chicken stock liquid
Chopped chicken meat - use as much or little as desired
Flavour to taste (I personally prefer Massels brand of chicken stock powder or Celtic salt)
Cream optional
In a large pot add oil and chopped onion. Cook onion until transparent. Add cumin and stir for a minute. Add chicken meat and stock liquid. Heat until gently simmering. Season to taste. Simmer for about 10-15 minutes. Serve into bowls and add a dollop of cream if desired. Enjoy!


public class ErrorTimeThresholdFinishingAlgorithm extends FinishingAlgorithm
| Constructor and Description |
|---|
ErrorTimeThresholdFinishingAlgorithm(double errorTolerance,
double timeThreshold)
Sets the algorithm being used to be the algorithm specified by the user, with a custom heading tolerance and heading duration.
|
ErrorTimeThresholdFinishingAlgorithm(ErrorTimeThresholdFinishingAlgorithm original)
Makes a copy of the algorithm, but only copies the settings
|
ErrorTimeThresholdFinishingAlgorithm(ErrorTimeThresholdFinishingAlgorithm original,
boolean copyState)
It makes another algorithm by copying the original one
|
| Modifier and Type | Method and Description |
|---|---|
boolean |
finished()
Determines that the controller is finished
|
double |
getErrorTolerance()
Returns the error tolerance
|
double |
getInput()
Returns the current sensor value
|
long |
getLastOutOfRange()
Returns the last time the robot was outside of the error tolerance
|
long |
getTimeThreshold()
Returns the time threshold
|
void |
input(double input)
Updated the controller algorithm, and if the heading is outside of the tolerance, it sets the lastOutOfRange to the current time.
|
boolean |
isWithinRange()
Returns whether of not the robot is currently within the error threshold
|
void |
setErrorTolerance(double errorTolerance)
Set the error tolerance
|
void |
setTimeThreshold(long timeThreshold)
Sets the time threshold
|
getTarget, setTarget
public ErrorTimeThresholdFinishingAlgorithm(double errorTolerance, double timeThreshold)
errorTolerance
- The custom errorTolerance, how close the robot has to gettimeThreshold
- The custom timeThreshold, how long (in seconds) the robot has to stay within the tolerancepublic ErrorTimeThresholdFinishingAlgorithm(ErrorTimeThresholdFinishingAlgorithm original, boolean copyState)
original
- The algorithm you wish to copy fromcopyState
- Whether you want the various states to be copied as well. FALSE for only copying the settings, TRUE for also copying the current status of the controllerpublic ErrorTimeThresholdFinishingAlgorithm(ErrorTimeThresholdFinishingAlgorithm original)
original
- The algorithm you wish to copypublic boolean finished()
public void input(double input)
input
- The current value of the sensorpublic double getErrorTolerance()
public void setErrorTolerance(double errorTolerance)
errorTolerance
- Difference between target value and actual value that you are willing to live withpublic long getTimeThreshold()
public void setTimeThreshold(long timeThreshold)
timeThreshold
- The amount of time the robot must stay within the error tolerance to be considered finishedpublic long getLastOutOfRange()
public boolean isWithinRange()
public double getInput()


{% extends "soc/base.html" %} {% comment %} Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0 Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License. {% endcomment %} {% load forms_helpers %} {% block header_title %} {{ page_name }} for {{ entity.name }} {% endblock %} {% block body %}


Film: Cowboy cop on a mission in crime thriller 21 Bridges
A tenacious police detective hunts two cop killers on the streets of New York in the action thriller 21 Bridges, writes Damon Smith
OPPORTUNISTIC thieves are in the wrong place at the wrong time, sparking a night-time police manhunt through the streets of Manhattan, in Brian Kirk's propulsive action thriller.
Screenwriters Adam Mervis and Matthew Michael Carnahan milk droplets of dramatic tension from their simple and efficient set-up, running a stopwatch on the frenetic gun fights and car chases from the moment the lead investigating officer reminds colleagues: "If we don't catch these guys in the next three to four hours, they vanish."
On-screen time checks cleanly convey the relentless passage of time from the first pull of a trigger to the cacophony of a bullet-riddled final reckoning that poses uncomfortable questions about the fractious relationship between taxpayers and the people entrusted to protect them.
Chadwick Boseman trades Black Panther's figure-hugging Vibranium weave mesh suit for more simple, functional attire as a morally incorruptible NYPD detective, who has been raised to never shy away from doing the right thing and to always "look the devil in the eye".
He is often the fulcrum of impeccably staged action sequences including a breathless pursuit on foot through the Subway transit system.
Michael (Stephan James) and his military-trained buddy Ray (Taylor Kitsch) receive a tip-off that a swanky restaurant in New York is a temporary hold for a 30kg shipment of cocaine.
The low-level criminals storm the premises after hours and point automatic weapons at a lone waiter, who eventually gives Michael and Ray a key to the downstairs safe.
Inside, the shocked duo find a whopping 300kg of white powder.
A police patrol arrives as the trigger-happy duo escape with considerably more than they came for.
Eight serving officers perish in a hail of bullets and Ray and Michael flee to Chinatown to offload their stash via a high-class money launderer (Alexander Siddig)
Flashing blue and red lights of the NYPD flood the crime scene.
Detective Andre Davis (Boseman), son of a decorated cop who was killed in the line of duty, is assigned to lead the manhunt by Captain McKenna (JK Simmons).
Andre proposes a bold plan of action – the temporary closure of all 21 bridges out of Manhattan and a suspension of train and subway services, trapping the killers on the island.
Flanked by ballsy narcotics division officer Frankie Burns (Sienna Miller), Andre screeches into Chinatown to apprehend Ray and Michael, using lethal force if necessary.
21 Bridges shoots to thrill on familiar territory, emboldened by Boseman's portrayal of a stoic and softly spoken man of honour, who brandishes his badge as a symbol of righteous authority.
Northern Irish director Kirk is a willing accomplice to explosive skirmishes beneath the gleaming glass and metal of a cityscape that never sleeps.
With a sleek 99-minute running time, there's no time for us to slumber.
Rating: 7/10
21 BRIDGES (15, 99 mins) Action/Thriller. Chadwick Boseman, JK Simmons, Sienna Miller, Stephan James, Taylor Kitsch, Alexander Siddig. Director: Brian Kirk.
Released: November 22


Collapse the falling blocks and get to the 2048 tile!
Enhanced by Jeffry Hartanto. 2048 Created by Gabriele Cirulli. Based on 1024 by Veewo Studio and conceptually similar to Threes by Asher Vollmer.


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It is easy to create an extension to a web standard, wich should work with and without webshim lib.
If the extension is build on top of a pure JS-API without special DOM-APIs (DOM-methods, DOM-events.), simply add the following "ready-code" to the project.
(function(){
var $ = jQuery || {};
if(!$.webshims){$.webshims = {ready: function(n, fn){fn();}};}
})();
After this the init-method/function can be passed to the webshim ready method, it will be called immediatley:
var myExtentsion = {
init: function(){
doStuff();
},
doStuff: function(){
//
}
};
$.webshims.ready('feature-name', myExtension.init);
Or wrap your hole code into a ready-callback:
$.webshims.ready('json-storage', function(){
var myExtentsion = {
init: function(){
doStuff();
},
doStuff: function(){
//i.e. JSON.stringify({"foo": "bar"});
}
};
myExtentsion.init();
});
Note: In case of using webshim lib, the author has to call $.webshims.polyfill();
before the ready callback is executed
If the abstraction needs to access a DOM-Property, that has a "magic" new feature or is affected by one the abstraction/extension code has always to use jQuery's attr() method.
//get the time of first video element
$('video').attr('currentTime');
//set the time of first audio element to 10 seconds
$('audio').attr('currentTime', 10);
If you are using a special feature, wich uses DOM-Methods or non bubbling DOM-Events, you should include the webshims lib compatibility script (1.5kb minified and 0.5kb gzipped) instead of adding the ready-code above.
If you want to access a special DOM-Method, simply register it by calling webshims addMethodName
-Method, wich will create a simple jQuery - Plugin for you.
$.webshims.addMethodName('pause');
//now you can call pause on elements through the jQuery object
$('video').pause();
If you want to bind an Event always use jQuery's bind-Method, instead of addEventListener. If this event is a DOM-Event and not bubbling, consider registering this event as an 'capturingEvent' with the capturingEvents
-method (This will allow you to use event delegation):
//captuirngEvents always takes an array of strings (event-names)
$.websims.capturingEvents(['play', 'pause']);
//i can capture play event, although it isn't bubbling
$(document).bind('play', function(e){
//doStuff
});
Here a full-code example
//add capturing events
$.websims.capturingEvents(['play']);
//add methods
$.webshims.addMethodName('pause');
$.webshims.ready('mediaelements', function(){
// Due to the fact that document is always there, we don't have to wait for jQuery's ready-event
//If a mediaelement starts to play
$(document).bind('play', function(e){
//pause all other mediaelements
$('audio, video').not(e.target).pause();
});
});
If you create an extension to a webstandard, wich also works with webshim lib, please let me know. If you want to create an extension for a feature, that isn't polyfilled by webshims lib, but "polyfillable" let me also know.
A Pollyfill always is split into at least 2 parts. First the test and loader definition and second the implementation.
Assume, that there is a "magic" new method called magicMethod on the window-object. An implementation would look like this:
$.webshims.addPolyfill('magicMethod', {
test: function(){
return ('magicMethod' in window);
}
});
// = load magicMethod.js from shim-folder if test returns false
Create a file called magicMethod with your polyfill-code and place it in the shim-folder:
window.magicMethod = function(){
//your polyfill implementation
};
In case of a DOM-Extension, webshims lib comes with some usefull extension-methods, that has to be loaded.
$.webshims.addPolyfill('mediaelement', {
test: function(){
return ('canPlayType' in document.createElement('video'));
},
dependencies: ['es5', 'dom-extend'],
methodNames: ['play'] //pause, load
});
// = load mediaelement.js, the es5 and DOM-extension features from shim-folder, if test returns false and always create a jQuery-Plugin called play, wich trys to invoke native/polyfilled play
Now put a mediaelement.js inside of your shim folder and start implementing some features. Webshims lib comes with some very usefull implementation helpers. Here are two of them:
$.webshims.defineNodeNamesProperty
(nodeNames, property, descriptor)$.webshims.defineNodeNamesBooleanProperty
(nodeNames, property, descriptor)
//wait till the DOM-Extension-feature is loaded
jQuery.webshims.ready('dom-extend', function($, webshims, window, document){
//Implements a new IDL property on audio, video called currentTime
$.webshims.defineNodeNamesProperty('audio, video', 'currentTime', {
get: function(){
//your getter implementation (this refers to the element)
},
set: function(value){
//your setter implementation (this refers to the element)
}
});
//Implements a new method called play on audio, video
$.webshims.defineNodeNamesProperty('audio, video', 'play', {
value: function(){
//your play-method implementation
//this refers to the element
}
});
//Implements a new boolean IDL property called controls on audio, video, wich is reflected by a content attribute
$.webshims.defineNodeNamesBooleanProperty('audio, video', 'controls', {
//set works more like an onSet:
//you don't have to set the value anymore on the domnode, only handle true/false values
set: function(value){
if(value){
//show controls for elem
} else {
//hide controls for elem
}
},
content: true
});
});
Webshims lib uses a sort of client-side browser-specific combination. This combinations aren't very flexible, but easy to use. If you want to develop, you can test the source-files by using $.webshims.debug = true;
.


|
You are in: Home > Technology
> Digital
Video > MPEG-1 Video Encoding
|
MPEG-1 Video Encoding
MPEG-1 coding offers high compression and
moderate quality for Video CD and
CD-ROM. | In 1992, the ISO MPEG committee
published the MPEG-1 specification for compressed digital video as
ISO 11172. This standard was designed to allow 74 minutes of digital
video to be stored on a compact disc.
The quality was noticeably superior to existing digital video
formats and, very importantly, represented an international standard
which could be adopted universally by the industry. Philips, as one
of the MPEG contributing companies, adopted MPEG-1 for CD-i and it
was subsequently adopted for Video CD.
MPEG-1 is intended for non-interlace displays in contrast with
MPEG-2 which is for interlaced video display. This means that
a PAL or NTSC video signal will be encoded at SIF
resolution, ie half the number of lines per video frame and half the
pixels per line.
MPEG-1 Example
The following diagram illustrates the sequence of frames in an
MPEG-1 video sequence. Note that the display order is different from
the order in which they are read from the disc.
Each macroblock of a B-frame is coded as a change from the
previous or next P-frame or I-frame. The I-frames are repeated at
approximately 0.5 second intervals, otherwise the PBBPBB.. pattern
is repeated indefinitely.
For the constrained parameter system, used for Video CD and CD-i,
there are a maximum of 396 macroblocks per frame. Therefore the
source PAL or NTSC video signal is encoded at SIF resolution, ie
half the number of lines per video frame and half the pixels per
line compared with CCIR 601. |


Balto Board WebServer Demo
Click to change LD1 led function
off
on
heartbeat
Click on the flipswitch to toggle SSH daemon
ON
OFF


Experience 1: My friend C and i were at the local grocery store one night. we were roaming around the drug aisle and i remembered hearing something about dramamine before, so i picked some up. we got back to my house and we each took 4 of the pills. within an hour i could feel the effects. i was really tired and dizzy and both of us fell asleep pretty quickly. all and all it was pretty boring.
Experience 2: I was with C again and that night we took 3 caffeine pills and 4 dramamine pills. This was much more fun than the first time.  I was outside, it was dark and everything had a reddish tint to it that flashed slightly. i was getting some good tracers off C's cigarette, too. we came back in the house and he sat on the computer, while i just kind of zoned out on the couch. i was having a kind of waking dream, like i was half asleep. i would see scenes in my head and talk outloud as they went along. it was pretty nifty that time.
Experience 3: I was at school and i was pretty bored. i downed four more pills and felt the effects withing twenty minutes. i felt kind of sick, and it felt like i had to struggle to stay conscious. i was so afraid i was going to pass out and it felt like my heartbeat was weak. i asked the teacher if i could go get a drink and she said no, so i walked out. i got a drink and discovered, like i read in another report, i couldnt burp right. air would go down, but nothing would come back up. i was like my esophagus was a one way street. i really didnt like that feeling. the next class was just as bad, and when i would close my eyes, i would see things. i put my head down on the desk, closed my eyes and saw my friend's face flying at me. i kept getting that feeling that you are falling, you know, like when you are falling asleep. i had always been a pill popper, but after that scary experience, i stopped popping pills altogther....
Experience Reports are the writings and opinions of the individual authors who submit them.
Some of the activities described are dangerous and/or illegal and none are recommended by Erowid.


Coldplay won't go on world tour with new album Everyday Life because of environmental concerns
Coldplay will not launch a globe-trotting tour for their latest album because of environmental concerns.
The band are in Jordan to perform two shows, from the album Everyday Life, being streamed live on YouTube.
But frontman Chris Martin, 42, told BBC News: "We're taking time to see how our tour can be actively beneficial."
He said of any future tour: "We would be disappointed if it's not carbon neutral.
"We've done a lot of big tours at this point. How do we turn it around so it's no so much taking as giving?"
The band's last big tour was for A Head Full Of Dreams, in 2016 and 2017.
Their new record will be released on Friday, with songs inspired by news reports about an Afghan gardener and a Nigerian hymn composer.


I am currently a senior double majoring in Statistics and Economics and minoring in Computer Science. I have completed multiple internships with projects including designing and coding business solutions, writing technical documents, and designing and wireframing UIs. I have also done research which utilizes data analysis in the departments of Political Science and Economics, and I co-authored a paper that has been published in the Journal of Health Communication.
| Majors |
|---|
| Applied Mathematics & Statistics Economics |
| Minor |
| Computer Science |
GPA: 3.75/4.00
Honors College Student
Departmental internship project: designing and developing a document management system


Modifying {{ user }}
Current Password:
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| New Password:
Current Full Name:
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| New Full Name:
Current admin status:
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Admin Rights?:
True
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{% extends 'emails/base_email.html' %} {% block content %}
The user {{ participant.user }} was denied permission from your competition:


Preparation time
less than 30 mins
Cooking time
10 to 30 mins
Serves
Serves 1
Dust the pieces of chicken breast cut into strips with seasoned flour, then sauté for about 1 minute in butter until well browned. Remove the chicken from the pan and put into another frying pan with a knob of butter to keep cooking.
Meanwhile, in the previous pan, add the morels, shallots and garlic to the pan with a little butter and sauté for 30 seconds.
Then add the double cream and reduce the sauce. You can add some of the soaking juices if it is too thick.
For the mash, place the potato in a pan of cold water and simmer until cooked. Add the butter, cream and sage and mix well.
Put a dollop of simple rich mashed potato and sage in the centre of the plate and arrange the chicken around it. Pour over the sauce to serve.


Planning and making healthy family dinners is very time-consuming. Making your 8- and 10-year old finish their plate might be an even bigger struggle.
Happy Plate is an inscentive creating app helping families to eat more healthy and in a relaxed atmosphere by making kids decide what's for dinner.
This will fill up the entire plate model and lead to a healthy recipe
This is a way for you to validate what ingredients work and what fails
Main menu design shot
Choose your main ingredient
Rate your dinner
Potential revenue streams


I am a senior in high school who wants to study computer science through college. I am currently attending Meridian Technical Charter High School and I am enrolled in the programming pathway. When i'm not at school I am working as a junior software devloper at a company called ArmgaSys. I have been coding for three and a half years and I know many different languages.


Nowadays we use general purpose applications or libraries to communicate with each other. For example, we often use an HTTP client library to retrieve information from a web server and to invoke a remote procedure call via web services.
However, a general purpose protocol or its implementation sometimes does not scale very well. It is like we don't use a general purpose HTTP server to exchange huge files, e-mail messages, and near-realtime messages such as financial information and multiplayer game data. What's required is a highly optimized protocol implementation which is dedicated to a special purpose. For example, you might want to implement an HTTP server which is optimized for AJAX-based chat application, media streaming, or large file transfer. You could even want to design and implement a whole new protocol which is precisely tailored to your need.
Another inevitable case is when you have to deal with a legacy proprietary protocol to ensure the interoperability with an old system. What matters in this case is how quickly we can implement that protocol while not sacrificing the stability and performance of the resulting application.
The Netty project is an effort to provide an asynchronous event-driven network application framework and tooling for the rapid development of maintainable high-performance · high-scalability protocol servers and clients.
In other words, Netty is a NIO client server framework which enables quick and easy development of network applications such as protocol servers and clients. It greatly simplifies and streamlines network programming such as TCP and UDP socket server development.
'Quick and easy' does not mean that a resulting application will suffer from a maintainability or a performance issue. Netty has been designed carefully with the experiences earned from the implementation of a lot of protocols such as FTP, SMTP, HTTP, and various binary and text-based legacy protocols. As a result, Netty has succeeded to find a way to achieve ease of development, performance, stability, and flexibility without a compromise.
Some users might already have found other network application framework that claims to have the same advantage, and you might want to ask what makes Netty so different from them. The answer is the philosophy where it is built on. Netty is designed to give you the most comfortable experience both in terms of the API and the implementation from the day one. It is not something tangible but you will realize that this philosophy will make your life much easier as you read this guide and play with Netty.
This chapter tours around the core constructs of Netty with simple examples to let you get started quickly. You will be able to write a client and a server on top of Netty right away when you are at the end of this chapter.
If you prefer top-down approach in learning something, you might want to start from Chapter 2, Architectural Overview and get back here.
The minimum requirements to run the examples which are introduced in this chapter are only two; the latest version of Netty and JDK 1.7 or above. The latest version of Netty is available in the project download page. To download the right version of JDK, please refer to your preferred JDK vendor's web site.
As you read, you might have more questions about the classes introduced in this chapter. Please refer to the API reference whenever you want to know more about them. All class names in this document are linked to the online API reference for your convenience. Also, please don't hesitate to contact the Netty project community and let us know if there's any incorrect information, errors in grammar and typo, and if you have a good idea to improve the documentation.
The most simplistic protocol in the world is not 'Hello, World!' but DISCARD
. It's a protocol which discards any received data without any response.
To implement the DISCARD
protocol, the only
thing you need to do is to ignore all received data. Let us start
straight from the handler implementation, which handles I/O events
generated by Netty.
package io.netty.example.discard;
import io.netty.channel.ChannelHandlerContext;
import io.netty.channel.ChannelInboundHandlerAdapter;
import io.netty.channel.MessageList;
/**
* Handles a server-side channel.
*/
public class DiscardServerHandler extends ChannelInboundHandlerAdapter { // (1)
@Override
public void messageReceived(ChannelHandlerContext ctx, MessageList<Object> msgs) { // (2)
// Discard the received data silently.
msgs.releaseAllAndRecycle();
}
@Override
public void exceptionCaught(ChannelHandlerContext ctx, Throwable cause) { // (3)
// Close the connection when an exception is raised.
cause.printStackTrace();
ctx.close();
}
}
DiscardServerHandler
extends ChannelInboundHandlerAdapter
, which is an implementation of ChannelInboundHandler
. ChannelInboundHandler
provides various event handler methods that you can override. For now, it is just enough to extend ChannelInboundHandlerAdapter
rather than to implement the handler interface by yourself.messageReceived()
event handler method here. This method is called with a MessageList
,
which contains the list of received buffers, whenever new data is
received from a client. In this example, we just discard the received
data by calling releaseAllAndRecycle()
on the MessageList
to implement the DISCARD
protocol.exceptionCaught()
event handler method is
called with a Throwable when an exception was raised by Netty due to an
I/O error or by a handler implementation due to the exception thrown
while processing events. In most cases, the caught exception should be
logged and its associated channel should be closed here, although the
implementation of this method can be different depending on what you
want to do to deal with an exceptional situation. For example, you might
want to send a response message with an error code before closing the
connection.So far so good. We have implemented the first half of the DISCARD
server. What's left now is to write the main()
method which starts the server with the DiscardServerHandler
.
package io.netty.example.discard;
import io.netty.bootstrap.ServerBootstrap;
import io.netty.channel.ChannelFuture;
import io.netty.channel.ChannelInitializer;
import io.netty.channel.EventLoopGroup;
import io.netty.channel.nio.NioEventLoopGroup;
import io.netty.channel.socket.SocketChannel;
import io.netty.channel.socket.nio.NioServerSocketChannel;
/**
* Discards any incoming data.
*/
public class DiscardServer {
private int port;
public DiscardServer(int port) {
this.port = port;
}
public void run() throws Exception {
EventLoopGroup bossGroup = new NioEventLoopGroup(); // (1)
EventLoopGroup workerGroup = new NioEventLoopGroup();
try {
ServerBootstrap b = new ServerBootstrap(); // (2)
b.group(bossGroup, workerGroup)
.channel(NioServerSocketChannel.class) // (3)
.childHandler(new ChannelInitializer<SocketChannel>() { // (4)
@Override
public void initChannel(SocketChannel ch) throws Exception {
ch.pipeline().addLast(new DiscardServerHandler());
}
})
.option(ChannelOption.SO_BACKLOG, 128) // (5)
.childOption(ChannelOption.SO_KEEPALIVE, true); // (6)
// Bind and start to accept incoming connections.
ChannelFuture f = b.bind(port).sync(); // (7)
// Wait until the server socket is closed.
// In this example, this does not happen, but you can do that to gracefully
// shut down your server.
f.channel().closeFuture().sync();
} finally {
workerGroup.shutdownGracefully();
bossGroup.shutdownGracefully();
}
}
public static void main(String[] args) throws Exception {
int port;
if (args.length > 0) {
port = Integer.parseInt(args[0]);
} else {
port = 8080;
}
new DiscardServer(port).run();
}
}
NioEventLoopGroup
is a multithreaded event loop that handles I/O operation. Netty provides various EventLoopGroup
implementations for different kind of transports. We are implementing a
server-side application in this example, and therefore two NioEventLoopGroup
will be used. The first one, often called 'boss', accepts an incoming
connection. The second one, often called 'worker', handles the traffic
of the accepted connection once the boss accepts the connection and
registers the accepted connection to the worker. How many Threads are
used and how they are mapped to the created Channel
s depends on the EventLoopGroup
implementation and may be even configurable via a constructor.ServerBootstrap
is a helper class that sets up a server. You can set up the server using a Channel
directly. However, please note that this is a tedious process, and you do not need to do that in most cases.NioServerSocketChannel
class which is used to instantiate a new Channel
to accept incoming connections.Channel
. The ChannelInitializer
is a special handler that is purposed to help a user configure a new Channel
. It is most likely that you want to configure the ChannelPipeline
of the new Channel
by adding some handlers such as DiscardServerHandler
to implement your network application. As the application gets
complicated, it is likely that you will add more handlers to the
pipeline and extract this anonymous class into a top level class
eventually.Channel
implementation. We are writing a TCP/IP server, so we are allowed to set the socket options such as tcpNoDelay
and keepAlive
. Please refer to the apidocs of ChannelOption
and the specific ChannelConfig
implementations to get an overview about the supported ChannelOption
s.option()
and childOption()
? option()
is for the NioServerSocketChannel
that accepts incoming connections. childOption()
is for the Channel
s accepted by the parent ServerChannel
, which is NioServerSocketChannel
in this case.8080
of all NICs (network interface cards) in the machine. You can now call the bind()
method as many times as you want (with different bind addresses.)Congratulations! You've just finished your first server on top of Netty.
Now that we have written our first server, we need to test if it really works. The easiest way to test it is to use the telnet command. For example, you could enter telnet localhost 8080
in the command line and type something.
However, can we say that the server is working fine? We cannot really know that because it is a discard server. You will not get any response at all. To prove it is really working, let us modify the server to print what it has received.
We already know that MessageList
is filled whenever data is received and the messageReceived
handler method will be invoked. Let us put some code into the messageReceived
method of the DiscardServerHandler
:
@Override
public void messageReceived(ChannelHandlerContext ctx, MessageList<Object> msgs) {
MessageList<ByteBuf> messages = msgs.cast();
try {
for (ByteBuf in : messages) {
while (in.isReadable()) { // (1)
System.out.println((char) in.readByte());
System.out.flush();
}
}
} finally {
msgs.releaseAllAndRecycle(); // (2)
}
}
System.out.println(buf.toString(io.netty.util.CharsetUtil.US_ASCII))
MessageList.releaseAllAndRecycle()
releases all reference-counted pooled messages and returns itself to the object pool.If you run the telnet command again, you will see the server prints what has received.
The full source code of the discard server is located in the io.netty.example.discard
package of the distribution.
So far, we have been consuming data without responding at
all. A server, however, is usually supposed to respond to a request. Let
us learn how to write a response message to a client by implementing
the ECHO
protocol, where any received data is sent back.
The only difference from the discard server we have
implemented in the previous sections is that it sends the received data
back instead of printing the received data out to the console.
Therefore, it is enough again to modify the messageReceived()
method:
@Override
public void messageReceived(ChannelHandlerContext ctx, MessageList<Object> msgs) {
ctx.write(msgs); // (1)
}
ChannelHandlerContext
object has a reference to its associated Channel
. Here, the returned Channel
represents the connection which received the MessageList
. We can get the Channel
and call the write()
method to write something back to the remote peer.If you run the telnet command again, you will see the server sends back whatever you have sent to it.
The full source code of the echo server is located in the io.netty.example.echo
package of the distribution.
The protocol to implement in this section is the TIME
protocol. It is different from the previous examples in that it sends a
message, which contains a 32-bit integer, without receiving any
requests and loses the connection once the message is sent. In this
example, you will learn how to construct and send a message, and to
close the connection on completion.
Because we are going to ignore any received data but to
send a message as soon as a connection is established, we cannot use the
messageReceived()
method this time. Instead, we should override the channelActive()
method. The following is the implementation:
package io.netty.example.time;
public class TimeServerHandler extends ChannelInboundHandlerAdapter {
@Override
public void channelActive(final ChannelHandlerContext ctx) { // (1)
final ByteBuf time = ctx.alloc().buffer(4); // (2)
time.writeInt((int) (System.currentTimeMillis() / 1000L +<PHONE_NUMBER>L);
final ChannelFuture f = ctx.write(time); // (3)
f.addListener(new ChannelFutureListener() {
@Override
public void operationComplete(ChannelFuture future) {
assert f == future;
ctx.close();
}
}); // (4)
}
@Override
public void exceptionCaught(ChannelHandlerContext ctx, Throwable cause) {
cause.printStackTrace();
ctx.close();
}
}
channelActive()
method will
be invoked when a connection is established and ready to generate
traffic. Let's write a 32-bit integer that represents the current time
in thie method.ByteBuf
whose capacity is at least 4 bytes. Get the current ByteBufAllocator
via ChannelHandlerContext.alloc()
and allocate a new buffer.As usual, we write the constructed message.
But wait, where's the flip? Didn't we used to call java.nio.ByteBuffer.flip()
before sending a message in NIO? ByteBuf
does not have such a method because it has two pointers; one for read
operations and the other for write operations. The writer index
increases when you write something to a ByteBuf
while the
reader index does not change. The reader index and the writer index
represents where the message starts and ends respectively.
In contrast, NIO buffer does not provide a clean way to figure out where the message content starts and ends without calling the flip method. You will be in trouble when you forget to flip the buffer because nothing or incorrect data will be sent. Such an error does not happen in Netty because we have different pointer for different operation types. You will find it makes your life much easier as you get used to it -- a life without flipping out!
Another point to note is that the ChannelHandlerContext.write()
method returns a ChannelFuture
. A ChannelFuture
represents an I/O operation which has not yet occurred. It means, any
requested operation might not have been performed yet because all
operations are asynchronous in Netty. For example, the following code
might close the connection even before a message is sent:
Channel ch = ...;
ch.write(message);
ch.close();
Therefore, you need to call the close()
method after the ChannelFuture
is complete, which was returned by the write()
method, notifies you when the write operation has been done. Please note that, close()
also might not close the connection immediately, and it returns a ChannelFuture
.
How do we get notified when a write request is finished then? This is as simple as adding a ChannelFutureListener
to the returned ChannelFuture
. Here, we created a new anonymous ChannelFutureListener
which closes the Channel
when the operation is done.
Alternatively, you could simplify the code using a pre-defined listener:
f.addListener(ChannelFutureListener.CLOSE);
To test if our time server works as expected, you can use the UNIX rdate
command:
$ rdate -o <port> -p <host>
<port>
is the port number you specified in the main()
method and <host>
is usually localhost
.
Unlike DISCARD
and ECHO
servers, we need a client for the TIME
protocol because a human cannot translate a 32-bit binary data into a
date on a calendar. In this section, we discuss how to make sure the
server works correctly and learn how to write a client with Netty.
The biggest and only difference between a server and a client in Netty is that different Bootstrap
and Channel
implementations are used. Please take a look at the following code:
package io.netty.example.time;
public class TimeClient {
public static void main(String[] args) throws Exception {
String host = args[0];
int port = Integer.parseInt(args[1]);
EventLoopGroup workerGroup = new NioEventLoopGroup();
try {
Bootstrap b = new Bootstrap(); // (1)
b.group(workerGroup); // (2)
b.channel(NioSocketChannel.class); // (3)
b.option(ChannelOption.SO_KEEPALIVE, true); // (4)
b.handler(new ChannelInitializer<SocketChannel>() {
@Override
public void initChannel(SocketChannel ch) throws Exception {
ch.pipeline().addLast(new TimeClientHandler());
}
});
// Start the client.
ChannelFuture f = b.connect(host, port).sync(); // (5)
// Wait until the connection is closed.
f.channel().closeFuture().sync();
} finally {
workerGroup.shudownGracefully();
}
}
}
Bootstrap
is similar to ServerBootstrap
except that it's for non-server channels such as a client-side or connectionless channel.EventLoopGroup
, it will be used both as a boss group and as a worker group. The boss worker is not used for the client side though.NioServerSocketChannel
, NioSocketChannel
is being used to create a client-side Channel
.childOption()
here unlike we did with ServerBootstrap
because the client-side SocketChannel
does not have a parent.connect()
method instead of the bind()
method. As you can see, it is not really different from the the server-side code. What about the [`ChannelHandler'] implementation? It should receive a 32-bit integer from the server, translate it into a human readable format, print the translated time, and close the connection:
package io.netty.example.time;
import java.util.Date;
public class TimeClientHandler extends ChannelInboundHandlerAdapter {
@Override
public void messageReceived(ChannelHandlerContext ctx, MessageList<Object> msgs) {
ByteBuf m = (ByteBuf) msgs.get(0); // (1)
long currentTimeMillis = (buf.readInt() -<PHONE_NUMBER>L) * 1000L;
System.out.println(new Date(currentTimeMillis));
msgs.releaseAllAndRecycle();
ctx.close();
}
@Override
public void exceptionCaught(ChannelHandlerContext ctx, Throwable cause) {
cause.printStackTrace();
ctx.close();
}
}
MessageList
is greater than 0 here.It looks very simple and does not look any different from
the server side example. However, this handler sometimes will refuse to
work raising an IndexOutOfBoundsException
. We discuss why this happens in the next section.
In a stream-based transport such as TCP/IP, received data is stored into a socket receive buffer. Unfortunately, the buffer of a stream-based transport is not a queue of packets but a queue of bytes. It means, even if you sent two messages as two independent packets, an operating system will not treat them as two messages but as just a bunch of bytes. Therefore, there is no guarantee that what you read is exactly what your remote peer wrote. For example, let us assume that the TCP/IP stack of an operating system has received three packets:
Because of this general property of a stream-based protocol, there's high chance of reading them in the following fragmented form in your application:
Therefore, a receiving part, regardless it is server-side or client-side, should defrag the received data into one or more meaningful frames that could be easily understood by the application logic. In case of the example above, the received data should be framed like the following:
Now let us get back to the TIME
client
example. We have the same problem here. A 32-bit integer is a very small
amount of data, and it is not likely to be fragmented often. However,
the problem is that it can be fragmented, and the possibility of
fragmentation will increase as the traffic increases.
The simplistic solution is to create an internal cumulative
buffer and wait until all 4 bytes are received into the internal
buffer. The following is the modified TimeClientHandler
implementation that fixes the problem:
package io.netty.example.time;
import java.util.Date;
public class TimeClientHandler extends ChannelInboundHandlerAdapter {
private ByteBuf buf;
@Override
public void handlerAdded(ChannelHandlerContext ctx) {
buf = ctx.alloc().buffer(4); // (1)
}
@Override
public void handlerRemoved(ChannelHandlerContext ctx) {
buf.release(); // (1)
buf = null;
}
@Override
public void messageReceived(ChannelHandlerContext ctx, MessageList<Object> msgs) {
for (ByteBuf m: msgs.<ByteBuf>cast()) { // (2)
buf.writeBytes(m); // (3)
}
msgs.releaseAllAndRecycle();
if (buf.readableBytes() >= 4) { // (4)
long currentTimeMillis = (buf.readInt() -<PHONE_NUMBER>L) * 1000L;
System.out.println(new Date(currentTimeMillis));
ctx.close();
}
}
@Override
public void exceptionCaught(ChannelHandlerContext ctx, Throwable cause) {
cause.printStackTrace();
ctx.close();
}
}
ChannelHandler
has two life cycle listener methods: handlerAdded()
and handlerRemoved()
. You can perform an arbitrary (de)initialization task as long as it does not block for a long time.MessageList.<T>cast()
enables you to cast the type parameter of a MessageList
without getting annoying unchecked type warnings.buf
. buf
has enough data, 4 bytes in this example, and proceed to the actual business logic. Otherwise, Netty will call the messageReceived()
method again when more data arrives, and eventually all 4 bytes will be cumulated.Although the first solution has resolved the problem with the TIME
client, the modified handler does not look that clean. Imagine a more
complicated protocol which is composed of multiple fields such as a
variable length field. Your ChannelInboundHandler
implementation will become unmaintainable very quickly.
As you may have noticed, you can add more than one ChannelHandler
to a ChannelPipeline
, and therefore, you can split one monolithic ChannelHandler
into multiple modular ones to reduce the complexity of your application. For example, you could split TimeClientHandler
into two handlers:
TimeDecoder
which deals with the fragmentation issue, andTimeClientHandler
.Fortunately, Netty provides an extensible class which helps you write the first one out of the box:
package io.netty.example.time;
public class TimeDecoder extends ByteToMessageDecoder { // (1)
@Override
protected void decode(ChannelHandlerContext ctx, ByteBuf in, MessageList<Object> out) { // (2)
if (in.readableBytes() < 4) {
return; // (3)
}
out.add(in.readBytes(4)); // (4)
}
}
ByteToMessageDecoder
is an implementation of ChannelInboundHandler
which makes it easy to which deals with the fragmentation issue.ByteToMessageDecoder
calls the decode()
method with an internally maintained cumulative buffer whenever new data is received.decode()
can decide to add nothing to out
where there is not enough data in the cumulative buffer. ByteToMessageDecoder
will call decode()
again when there is more data received.decode()
adds an object to out
, it means the decoder decoded a message successfully. ByteToMessageDecoder
will discard the read part of the cumulative buffer. Please remember that you don't need to decode multiple messages. ByteToMessageDecoder
will keep calling the decode()
method until it adds nothing to out
.Now that we have another handler to insert into the ChannelPipeline
, we should modify the ChannelInitializer
implementation in the TimeClient
:
b.handler(new ChannelInitializer<SocketChannel>() {
@Override
public void initChannel(SocketChannel ch) throws Exception {
ch.pipeline().addLast(new TimeDecoder(), new TimeClientHandler());
}
});
If you are an adventurous person, you might want to try the ReplayingDecoder
which simplifies the decoder even more. You will need to consult the API reference for more information though.
public class TimeDecoder extends ReplayingDecoder<VoidEnum> {
@Override
protected void decode(
ChannelHandlerContext ctx, ByteBuf in, MessageList<Object> out, VoidEnum state) {
out.add(in.readBytes(4));
}
}
Additionally, Netty provides out-of-the-box decoders which enables you to implement most protocols very easily and helps you avoid from ending up with a monolithic unmaintainable handler implementation. Please refer to the following packages for more detailed examples:
io.netty.example.factorial
for a binary protocol, andio.netty.example.telnet
for a text line-based protocol.ByteBuf
All the examples we have reviewed so far used a ByteBuf
as a primary data structure of a protocol message. In this section, we will improve the TIME
protocol client and server example to use a POJO instead of a ByteBuf
.
The advantage of using a POJO in your ChannelHandler
s is obvious; your handler becomes more maintainable and reusable by separating the code which extracts information from ByteBuf
out from the handler. In the TIME
client and server examples, we read only one 32-bit integer and it is not a major issue to use ByteBuf
directly. However, you will find it is necessary to make the separation as you implement a real world protocol.
First, let us define a new type called UnixTime
.
package io.netty.example.time;
import java.util.Date;
public class UnixTime {
private final int value;
public UnixTime() {
this((int) (System.currentTimeMillis() / 1000L +<PHONE_NUMBER>L));
}
public UnixTime(int value) {
this.value = value;
}
public int value() {
return value;
}
@Override
public String toString() {
return new Date((value() -<PHONE_NUMBER>L) * 1000L).toString();
}
}
We can now revise the TimeDecoder
to produce a UnixTime
instead of a ByteBuf
.
@Override
protected Object decode(ChannelHandlerContext ctx, ByteBuf in, MessageList<Object> out) {
if (in.readableBytes() < 4) {
return;
}
out.add(new UnixTime(buffer.readInt());
}
With the updated decoder, the TimeClientHandler
does not use ByteBuf
anymore:
@Override
public void messageReceived(ChannelHandlerContext ctx, MessageList<Object> msgs) {
UnixTime m = (UnixTime) msgs.get(0);
System.out.println(m);
ctx.close();
}
Much simpler and elegant, right? The same technique can be applied on the server side. Let us update the TimeServerHandler
first this time:
@Override
public void channelActive(ChannelHandlerContext ctx) {
ChannelFuture f = ctx.write(new UnixTime());
f.addListener(ChannelFutureListener.CLOSE);
}
Now, the only missing piece is an encoder, which is an implementation of ChannelOutboundHandler
that translates a UnixTime
back into a ByteBuf
.
It's much simpler than writing a decoder because there's no need to
deal with packet fragmentation and assembly when encoding a message.
package io.netty.example.time;
public class TimeEncoder extends ChannelOutboundHandlerAdapter {
@Override
public void write(ChannelHandlerContext ctx, MessageList<Object> msgs, ChannelPromise promise) {
MessageList<ByteBuf> out = MessageList.newInstance();
for (UnixTime m: msgs.<UnixTime>cast()) {
ByteBuf encoded = ctx.alloc().buffer(4);
encoded.writeInt(m.value());
out.add(encoded);
}
msgs.releaseAllAndRecycle();
ctx.write(out, promise); // (1)
}
}
ChannelPromise
as-is so that Netty marks it as success or failure when the encoded data is actually written out to the wire.To simplify even further, you can make use of MessageToByteEncoder
:
public class TimeEncoder extends MessageToByteEncoder<UnixTime> {
@Override
protected void encode(ChannelHandlerContext ctx, UnixTime msg, ByteBuf out) {
out.writeInt(msg.value());
}
}
The last task left is to insert a TimeEncoder
into the ChannelPipeline
on the server side, and it is left as a trivial exercise.
Shutting down a Netty application is usually as simple as shutting down all EventLoopGroup
s you created via shutdownGracefully()
. It returns a Future
that notifies you when the EventLoopGroup
has been terminated completely and all Channel
s that belong to the group have been closed.
In this chapter, we had a quick tour of Netty with a demonstration on how to write a fully working network application on top of Netty.
There is more detailed information about Netty in the
upcoming chapters. We also encourage you to review the Netty examples in
the io.netty.example
package.
Please also note that the community is always waiting for your questions and ideas to help you and keep improving Netty and its documentation based on your feed back.


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This fields allows you to add ZAP command line options.
You just have to type the command line option in the first field and his value in the second field (if it has one).
See here for more details.
Environment variable/job parameter will be resolved.


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Repair tool and defibs - Better Battlelog Forums #1606
Sitemap
09. April 2012 03:43
Topicstarter
Guest
I noticed this and it doesn't show repair tool or defib kills, I wanted to request this as an addition please.
09. April 2012 17:26
BrainFooLong
Administrator
It's wrong. Goto bottom of weapon stats page.
For example here:
http://battlelog.battlefield.com/bf3/en/soldier/DJ-Brainnrg/weapons/344922784/pc/


{{profile.followers}} Followers Following {{profile.following}} {{profile.public_gists}} Public Gists {{profile.public_repos}} Public Repos Created on {{profile.created_at|date}}
{{repo.name}}
View this
project on github
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Copyright © 2019, Gideon Muriithi


from fasterai.sparse.all import *
Lottery Ticket Hypothesis
The Lottery Ticket Hypothesis
The Lottery Ticket Hypothesis is a really intriguing discovery made in 2019 by Frankle & Carbin. It states that:
A randomly-initialized, dense neural network contains a subnetwork that is initialised such that — when trained in isolation — it can match the test accuracy of the original network after training for at most the same number of iterations.
Meaning that, once we find that subnetwork. Every other parameter in the network becomes useless.
The way authors propose to find those subnetwork is as follows:
- Initialize the neural network
- Train it to convergence
- Prune the smallest magnitude weights by creating a mask \(m\)
- Reinitialize the weights to their original value; i.e at iteration \(0\).
- Repeat from step 2 until reaching the desired level of sparsity.
= untar_data(URLs.PETS)
path = get_image_files(path/"images")
files
def label_func(f): return f[0].isupper()
= 'cuda:0' if torch.cuda.is_available() else 'cpu'
device
= ImageDataLoaders.from_name_func(path, files, label_func, item_tfms=Resize(64), device=device) dls
What we are trying to prove is that: in a neural network A, there exists a subnetwork B able to get an accuracy \(a_B > a_A\), in a training time \(t_B < t_A\).
Let’s get the baseline for network A:
= Learner(dls, resnet18(num_classes=2), metrics=accuracy) learn
Let’s save original weights
= deepcopy(learn.model.state_dict()) initial_weights
5, 1e-3) learn.fit(
| epoch | train_loss | valid_loss | accuracy | time |
|---|---|---|---|---|
| 0 | 0.624942 | 0.559285 | 0.711096 | 00:08 |
| 1 | 0.554435 | 0.629745 | 0.699594 | 00:07 |
| 2 | 0.540063 | 0.562307 | 0.723951 | 00:07 |
| 3 | 0.500982 | 0.548926 | 0.704330 | 00:07 |
| 4 | 0.459079 | 0.565009 | 0.675913 | 00:07 |
We now have our accuracy \(a_A\) of \(79\%\) and our training time \(t_A\) of \(5\) epochs
To find the lottery ticket, we will perform iterative pruning but, at each pruning step we will re-initialize the remaining weights to their original values (i.e. before training).
We will restart from the same initialization to be sure to not get lucky.
= Learner(dls, resnet18(num_classes=2), metrics=accuracy)
learn learn.model.load_state_dict(initial_weights)
<All keys matched successfully>
We can pass the parameters lth=True
to make the weights of the network reset to their original value after each pruning step, i.e. step 4) of the LTH. To empirically validate the LTH, we need to retrain the found “lottery ticket” after the pruning phase. Lottery tickets are usually found following an iterative pruning schedule. We set the start_epoch
parameter to \(5\) to begin the pruning process after \(5\) epochs.
= Schedule(sched_iterative, start_pct=0.25) schedule
= SparsifyCallback(50, 'weight', 'local', large_final, schedule, lth=True) sp_cb
As our iterative
schedule makes \(3\) pruning steps by default, it means that we have to train our network for start_epoch
+ \(3*t_B\), so \(20\) epochs in order to get our LTH. After each step, the remaining weights will be reinitialized to their original value
20, 1e-3, cbs=sp_cb) learn.fit(
Pruning of weight until a sparsity of [50]%
Saving Weights at epoch 0
| epoch | train_loss | valid_loss | accuracy | time |
|---|---|---|---|---|
| 0 | 0.584362 | 0.607169 | 0.635995 | 00:07 |
| 1 | 0.547975 | 0.663318 | 0.719215 | 00:07 |
| 2 | 0.518505 | 0.544549 | 0.716509 | 00:07 |
| 3 | 0.472541 | 0.470786 | 0.775372 | 00:07 |
| 4 | 0.425963 | 0.673728 | 0.730717 | 00:07 |
| 5 | 0.573806 | 0.529624 | 0.723275 | 00:07 |
| 6 | 0.507284 | 0.458147 | 0.777402 | 00:07 |
| 7 | 0.447610 | 0.629908 | 0.652233 | 00:07 |
| 8 | 0.412829 | 0.394333 | 0.823410 | 00:07 |
| 9 | 0.381195 | 0.413377 | 0.815291 | 00:07 |
| 10 | 0.480223 | 0.518234 | 0.761840 | 00:07 |
| 11 | 0.415105 | 0.399813 | 0.823410 | 00:07 |
| 12 | 0.376185 | 0.387731 | 0.822733 | 00:07 |
| 13 | 0.353330 | 0.462406 | 0.771989 | 00:07 |
| 14 | 0.319414 | 0.355309 | 0.837618 | 00:07 |
| 15 | 0.392155 | 0.446360 | 0.792287 | 00:07 |
| 16 | 0.360181 | 0.461158 | 0.786874 | 00:07 |
| 17 | 0.325754 | 0.406724 | 0.824087 | 00:07 |
| 18 | 0.270658 | 0.589742 | 0.767930 | 00:07 |
| 19 | 0.263195 | 0.392320 | 0.832882 | 00:07 |
Sparsity at the end of epoch 0: [0.0]%
Sparsity at the end of epoch 1: [0.0]%
Sparsity at the end of epoch 2: [0.0]%
Sparsity at the end of epoch 3: [0.0]%
Sparsity at the end of epoch 4: [0.0]%
Resetting Weights to their epoch 0 values
Sparsity at the end of epoch 5: [16.67]%
Sparsity at the end of epoch 6: [16.67]%
Sparsity at the end of epoch 7: [16.67]%
Sparsity at the end of epoch 8: [16.67]%
Sparsity at the end of epoch 9: [16.67]%
Resetting Weights to their epoch 0 values
Sparsity at the end of epoch 10: [33.33]%
Sparsity at the end of epoch 11: [33.33]%
Sparsity at the end of epoch 12: [33.33]%
Sparsity at the end of epoch 13: [33.33]%
Sparsity at the end of epoch 14: [33.33]%
Resetting Weights to their epoch 0 values
Sparsity at the end of epoch 15: [50.0]%
Sparsity at the end of epoch 16: [50.0]%
Sparsity at the end of epoch 17: [50.0]%
Sparsity at the end of epoch 18: [50.0]%
Sparsity at the end of epoch 19: [50.0]%
Final Sparsity: [50.0]%
Sparsity in Conv2d 1: 50.00%
Sparsity in Conv2d 7: 50.00%
Sparsity in Conv2d 10: 50.00%
Sparsity in Conv2d 13: 50.00%
Sparsity in Conv2d 16: 50.00%
Sparsity in Conv2d 20: 50.00%
Sparsity in Conv2d 23: 50.00%
Sparsity in Conv2d 26: 50.00%
Sparsity in Conv2d 29: 50.00%
Sparsity in Conv2d 32: 50.00%
Sparsity in Conv2d 36: 50.00%
Sparsity in Conv2d 39: 50.00%
Sparsity in Conv2d 42: 50.00%
Sparsity in Conv2d 45: 50.00%
Sparsity in Conv2d 48: 50.00%
Sparsity in Conv2d 52: 50.00%
Sparsity in Conv2d 55: 50.00%
Sparsity in Conv2d 58: 50.00%
Sparsity in Conv2d 61: 50.00%
Sparsity in Conv2d 64: 50.00%
We indeed have a network B, whose accuracy \(a_B > a_A\) in the same training time.
Lottery Ticket Hypothesis with Rewinding
In some case, LTH fails for deeper networks, author then propose a solution, which is to rewind the weights to a more advanced iteration instead of the initialization value.
= Learner(dls, resnet18(num_classes=2), metrics=accuracy)
learn learn.model.load_state_dict(initial_weights)
<All keys matched successfully>
This can be done in fasterai by passing the rewind_epoch
parameter, that will save the weights at that epoch, then resetting the weights accordingly.
= SparsifyCallback(50, 'weight', 'local', large_final, schedule, lth=True, rewind_epoch=1) sp_cb
20, 1e-3, cbs=sp_cb) learn.fit(
Pruning of weight until a sparsity of [50]%
| epoch | train_loss | valid_loss | accuracy | time |
|---|---|---|---|---|
| 0 | 0.587423 | 0.669452 | 0.696211 | 00:07 |
| 1 | 0.561204 | 0.543574 | 0.705683 | 00:07 |
| 2 | 0.541044 | 0.515325 | 0.746279 | 00:07 |
| 3 | 0.502017 | 0.483110 | 0.756428 | 00:07 |
| 4 | 0.459558 | 0.570272 | 0.736807 | 00:07 |
| 5 | 0.549915 | 0.579451 | 0.720568 | 00:07 |
| 6 | 0.470164 | 0.461384 | 0.799729 | 00:07 |
| 7 | 0.438228 | 0.657783 | 0.612314 | 00:07 |
| 8 | 0.388232 | 0.643327 | 0.659675 | 00:07 |
| 9 | 0.349985 | 0.447483 | 0.783491 | 00:07 |
| 10 | 0.435783 | 0.565559 | 0.669824 | 00:07 |
| 11 | 0.403817 | 0.452713 | 0.804465 | 00:07 |
| 12 | 0.358676 | 0.372348 | 0.836942 | 00:07 |
| 13 | 0.325332 | 0.596648 | 0.713802 | 00:07 |
| 14 | 0.296661 | 0.380269 | 0.845061 | 00:07 |
| 15 | 0.347766 | 0.464424 | 0.781461 | 00:07 |
| 16 | 0.298053 | 0.430848 | 0.818674 | 00:07 |
| 17 | 0.277868 | 0.632241 | 0.732070 | 00:07 |
| 18 | 0.240276 | 0.379765 | 0.850474 | 00:07 |
| 19 | 0.218686 | 0.785115 | 0.784168 | 00:07 |
Sparsity at the end of epoch 0: [0.0]%
Saving Weights at epoch 1
Sparsity at the end of epoch 1: [0.0]%
Sparsity at the end of epoch 2: [0.0]%
Sparsity at the end of epoch 3: [0.0]%
Sparsity at the end of epoch 4: [0.0]%
Resetting Weights to their epoch 1 values
Sparsity at the end of epoch 5: [16.67]%
Sparsity at the end of epoch 6: [16.67]%
Sparsity at the end of epoch 7: [16.67]%
Sparsity at the end of epoch 8: [16.67]%
Sparsity at the end of epoch 9: [16.67]%
Resetting Weights to their epoch 1 values
Sparsity at the end of epoch 10: [33.33]%
Sparsity at the end of epoch 11: [33.33]%
Sparsity at the end of epoch 12: [33.33]%
Sparsity at the end of epoch 13: [33.33]%
Sparsity at the end of epoch 14: [33.33]%
Resetting Weights to their epoch 1 values
Sparsity at the end of epoch 15: [50.0]%
Sparsity at the end of epoch 16: [50.0]%
Sparsity at the end of epoch 17: [50.0]%
Sparsity at the end of epoch 18: [50.0]%
Sparsity at the end of epoch 19: [50.0]%
Final Sparsity: [50.0]%
Sparsity in Conv2d 1: 50.00%
Sparsity in Conv2d 7: 50.00%
Sparsity in Conv2d 10: 50.00%
Sparsity in Conv2d 13: 50.00%
Sparsity in Conv2d 16: 50.00%
Sparsity in Conv2d 20: 50.00%
Sparsity in Conv2d 23: 50.00%
Sparsity in Conv2d 26: 50.00%
Sparsity in Conv2d 29: 50.00%
Sparsity in Conv2d 32: 50.00%
Sparsity in Conv2d 36: 50.00%
Sparsity in Conv2d 39: 50.00%
Sparsity in Conv2d 42: 50.00%
Sparsity in Conv2d 45: 50.00%
Sparsity in Conv2d 48: 50.00%
Sparsity in Conv2d 52: 50.00%
Sparsity in Conv2d 55: 50.00%
Sparsity in Conv2d 58: 50.00%
Sparsity in Conv2d 61: 50.00%
Sparsity in Conv2d 64: 50.00%
Super-Masks
Researchers from Uber AI investigated the LTH and found the existence of what they call “Super-Masks”, i.e. masks that, applied on a untrained neural network, allows to reach better-than-random results.
= Learner(dls, resnet18(num_classes=2), metrics=accuracy)
learn learn.model.load_state_dict(initial_weights)
<All keys matched successfully>
To find supermasks, authors perform the LTH method then apply the mask on the original, untrained network. In fasterai, you can pass the parameter reset_end=True
, which will reset the weights to their original value at the end of the training, but keeping the pruned weights (i.e. the mask) unchanged.
= SparsifyCallback(50, 'weight', 'local', large_final, schedule, lth=True, reset_end=True) sp_cb
20, 1e-3, cbs=sp_cb) learn.fit(
Pruning of weight until a sparsity of [50]%
Saving Weights at epoch 0
| epoch | train_loss | valid_loss | accuracy | time |
|---|---|---|---|---|
| 0 | 0.585188 | 0.581024 | 0.709743 | 00:07 |
| 1 | 0.553269 | 0.772498 | 0.702300 | 00:07 |
| 2 | 0.513219 | 0.505785 | 0.736130 | 00:07 |
| 3 | 0.483751 | 0.452862 | 0.782815 | 00:07 |
| 4 | 0.437997 | 0.509538 | 0.740866 | 00:07 |
| 5 | 0.547269 | 0.488490 | 0.763870 | 00:07 |
| 6 | 0.505039 | 0.517426 | 0.734100 | 00:07 |
| 7 | 0.452737 | 0.520701 | 0.743572 | 00:07 |
| 8 | 0.422814 | 0.447591 | 0.795670 | 00:07 |
| 9 | 0.388168 | 0.444148 | 0.784168 | 00:07 |
| 10 | 0.496667 | 0.520030 | 0.770636 | 00:07 |
| 11 | 0.438477 | 0.561501 | 0.684709 | 00:07 |
| 12 | 0.390725 | 0.371210 | 0.831529 | 00:07 |
| 13 | 0.361358 | 0.522248 | 0.750338 | 00:07 |
| 14 | 0.325510 | 0.408143 | 0.825440 | 00:07 |
| 15 | 0.412453 | 0.391598 | 0.819350 | 00:07 |
| 16 | 0.359522 | 0.389951 | 0.824763 | 00:07 |
| 17 | 0.323788 | 0.549834 | 0.766576 | 00:07 |
| 18 | 0.289855 | 0.481156 | 0.795670 | 00:07 |
| 19 | 0.257520 | 0.354713 | 0.841678 | 00:07 |
Sparsity at the end of epoch 0: [0.0]%
Sparsity at the end of epoch 1: [0.0]%
Sparsity at the end of epoch 2: [0.0]%
Sparsity at the end of epoch 3: [0.0]%
Sparsity at the end of epoch 4: [0.0]%
Resetting Weights to their epoch 0 values
Sparsity at the end of epoch 5: [16.67]%
Sparsity at the end of epoch 6: [16.67]%
Sparsity at the end of epoch 7: [16.67]%
Sparsity at the end of epoch 8: [16.67]%
Sparsity at the end of epoch 9: [16.67]%
Resetting Weights to their epoch 0 values
Sparsity at the end of epoch 10: [33.33]%
Sparsity at the end of epoch 11: [33.33]%
Sparsity at the end of epoch 12: [33.33]%
Sparsity at the end of epoch 13: [33.33]%
Sparsity at the end of epoch 14: [33.33]%
Resetting Weights to their epoch 0 values
Sparsity at the end of epoch 15: [50.0]%
Sparsity at the end of epoch 16: [50.0]%
Sparsity at the end of epoch 17: [50.0]%
Sparsity at the end of epoch 18: [50.0]%
Sparsity at the end of epoch 19: [50.0]%
Final Sparsity: [50.0]%
Sparsity in Conv2d 1: 50.00%
Sparsity in Conv2d 7: 50.00%
Sparsity in Conv2d 10: 50.00%
Sparsity in Conv2d 13: 50.00%
Sparsity in Conv2d 16: 50.00%
Sparsity in Conv2d 20: 50.00%
Sparsity in Conv2d 23: 50.00%
Sparsity in Conv2d 26: 50.00%
Sparsity in Conv2d 29: 50.00%
Sparsity in Conv2d 32: 50.00%
Sparsity in Conv2d 36: 50.00%
Sparsity in Conv2d 39: 50.00%
Sparsity in Conv2d 42: 50.00%
Sparsity in Conv2d 45: 50.00%
Sparsity in Conv2d 48: 50.00%
Sparsity in Conv2d 52: 50.00%
Sparsity in Conv2d 55: 50.00%
Sparsity in Conv2d 58: 50.00%
Sparsity in Conv2d 61: 50.00%
Sparsity in Conv2d 64: 50.00%
learn.validate()
(#2) [0.6950991749763489,0.46008118987083435]


GBP/USD Technical Analysis: Cable easing from daily highs, trading back below the 1.2900 handle
by Flavio Tosti- The cable is starting the week with a small recovery, which aimed at the 1.2900 handle.
- The level to beat for buyers is the 1.2900/1.2916 resistance zone.
GBP/USD daily chart
GBP/USD is battling for the 1.2900 handle as the market is chopping in November. The market keeps an underlying bullish bias while trading above the main daily simple moving averages (DMAs).
GBP/USD four-hour chart
The spot is trading above a rising 200 SMA, suggesting bullish momentum. A break above the 1.2900/1.2916 resistance zone is necessary to trigger further gains towards the 1.2964/1.3000 resistance zone, according to the Technical Confluences Indicator.
GBP/USD 30-minute chart
GBP/USD is starting the week with an attempt at regaining the 1.2900/1.2916 resistance zone. Bulls seem to be in control for the time being. Support is seen at the 1.2870 and 1.2820 price levels.
Additional key levels
GBP/USD
| Overview | |
|---|---|
| Today last price | 1.2885 |
| Today Daily Change | 0.0048 |
| Today Daily Change % | 0.37 |
| Today daily open | 1.2837 |
| Trends | |
|---|---|
| Daily SMA20 | 1.2881 |
| Daily SMA50 | 1.2675 |
| Daily SMA100 | 1.2478 |
| Daily SMA200 | 1.2704 |
| Levels | |
|---|---|
| Previous Daily High | 1.2929 |
| Previous Daily Low | 1.2821 |
| Previous Weekly High | 1.2986 |
| Previous Weekly Low | 1.2821 |
| Previous Monthly High | 1.3013 |
| Previous Monthly Low | 1.2194 |
| Daily Fibonacci 38.2% | 1.2862 |
| Daily Fibonacci 61.8% | 1.2888 |
| Daily Pivot Point S1 | 1.2795 |
| Daily Pivot Point S2 | 1.2754 |
| Daily Pivot Point S3 | 1.2687 |
| Daily Pivot Point R1 | 1.2903 |
| Daily Pivot Point R2 | 1.297 |
| Daily Pivot Point R3 | 1.3012 |


Source code for veroviz
__version__ = '0.3.1'
# Generate Objects
from veroviz.generateNodes import generateNodes
from veroviz.generateNodes import createNodesFromLocs
from veroviz.generateArcs import createArcsFromLocSeq
from veroviz.generateArcs import createArcsFromNodeSeq
from veroviz.snapNodesToRoad import snapNodesToRoad
from veroviz.snapNodesToRoad import getSnapLoc
from veroviz.snapNodesToRoad import getSnapLocBatch
from veroviz.getTimeDist2D import getTimeDist2D
from veroviz.getTimeDistScalar2D import getTimeDistScalar2D
from veroviz.getTimeDist3D import getTimeDist3D
from veroviz.getTimeDistScalar3D import getTimeDistScalar3D
from veroviz.getShapepoints2D import getShapepoints2D
from veroviz.getShapepoints3D import getShapepoints3D
from veroviz.createAssignments import addAssignment2D
from veroviz.createAssignments import addAssignment3D
from veroviz.createAssignments import addStaticAssignment
from veroviz.createAssignments import createAssignmentsFromArcs2D
from veroviz.createAssignments import createAssignmentsFromNodeSeq2D
from veroviz.createAssignments import createAssignmentsFromLocSeq2D
# Utilities
from veroviz.utilities import *
# Visualize objects
from veroviz.createLeaflet import createLeaflet
from veroviz.createLeaflet import addLeafletCircle
from veroviz.createLeaflet import addLeafletMarker
from veroviz.createLeaflet import addLeafletPolygon
from veroviz.createLeaflet import addLeafletPolyline
from veroviz.createLeaflet import addLeafletText
from veroviz.createCesium import createCesium
# Internal shared small functions/constants/validation
from veroviz._common import *
from veroviz._params import *
from veroviz._internal import *
from veroviz._validation import *
from veroviz._geometry import *
# pgRouting related
from veroviz._queryPgRouting import pgrGetSnapToRoadLatLon
from veroviz._queryPgRouting import pgrGetNearestStreet
from veroviz._queryPgRouting import pgrGetShapepointsTimeDist
from veroviz._queryPgRouting import pgrGetTimeDist
# ORS related
from veroviz._queryORS import orsGetSnapToRoadLatLon
from veroviz._queryORS import orsGetShapepointsTimeDist
from veroviz._queryORS import orsGetTimeDistAll2All
from veroviz._queryORS import orsGetTimeDistOne2Many
from veroviz._queryORS import orsGetTimeDistMany2One
from veroviz._queryORS import orsGeocode
from veroviz._queryORS import orsReverseGeocode
# OSRM related
from veroviz._queryOSRM import osrmGetSnapToRoadLatLon
from veroviz._queryOSRM import osrmGetShapepointsTimeDist
from veroviz._queryOSRM import osrmGetTimeDistOnePair
from veroviz._queryOSRM import osrmGetTimeDist
# MapQuest related
from veroviz._queryMapQuest import mqGetSnapToRoadLatLon
from veroviz._queryMapQuest import mqGetSnapToRoadLatLonBatch
from veroviz._queryMapQuest import mqGetShapepointsTimeDist
from veroviz._queryMapQuest import mqGetTimeDistAll2All
from veroviz._queryMapQuest import mqGetTimeDistOne2Many
from veroviz._queryMapQuest import mqGetTimeDistMany2One
from veroviz._queryMapQuest import mqGeocode
from veroviz._queryMapQuest import mqReverseGeocode
# 3D function related
from veroviz._buildFlightProfile import buildNoLoiteringFlight
from veroviz._buildFlightProfile import getTimeDistFromFlight
from veroviz._buildFlightProfile import addLoiterTimeToFlight
# Function related to travel matrices generating
from veroviz._getTimeDistFromLocs2D import getTimeDistFromLocs2D
# Functions related to snapping nodes to road
from veroviz._getSnapLoc import privGetSnapLocBatch
from veroviz._getSnapLoc import privGetSnapLoc
# Functions that deconstruct an Assignments dataframe for `createLeaflet` and `createCesium`
from veroviz._deconstructAssignments import deconstructAssignments
from veroviz._createEntitiesFromList import privCreateNodesFromLocs
from veroviz._createEntitiesFromList import privCreateArcsFromLocSeq
# Functions related to assignments/shapepoints:
from veroviz._createAssignments import privAddStaticAssignment
from veroviz._getShapepoints import privGetShapepoints2D
# Check the current version and latest version of veroviz
[docs]def checkVersion():
urllib3.disable_warnings()
versionStatus = ""
currentVersion = __version__
latestVersion = ""
try:
http = urllib3.PoolManager()
response = http.request('GET', "https://pypi.python.org/pypi/veroviz/json")
data = json.loads(response.data.decode('utf-8'))
latestVersion = data['info']['version']
if (currentVersion == latestVersion):
versionStatus = "Your current installed version of veroviz is %s. You are up-to-date with the latest available version." % (currentVersion)
else:
versionStatus = "Your current installed version of veroviz is %s, the latest version available is %s. To update to the latest version, type `pip install --upgrade veroviz` at a command-line prompt." % (currentVersion, latestVersion)
except:
versionStatus = "Error: Cannot determine the latest version of veroviz. The most common cause is that your computer isn't connected to the network."
return versionStatus
# def disableWarningMessages():
# os.environ['VEROVIZ_SHOWWARNINGMESSAGE'] = 'False'
# return
# def enableWarningMessages():
# os.environ['VEROVIZ_SHOWWARNINGMESSAGE'] = 'True'
# return


We are building a grassroots network of volunteers throughout the country. Help spread our message of service and join the team today! Please tell us about yourself, and a volunteer coordinator will be in touch soon!
We are building a grassroots network of volunteers throughout the country. Help spread our message of service and join the team today! Please tell us about yourself, and a volunteer coordinator will be in touch soon!


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{% extends "layout.html" %} {% block banner %} {% endblock %} {% block title %}
The D&D μStarter Kit is a helper tool for players of Dungeons and Dragons. Roll dice, generate a character with an ad-libbed one-line backstory, or play a complete ad-libbed D&D scene!
This kit implements quantum computing for randomness and ad-libs, alongside user inputs.
Based on the D&D 5E Player’s Handbook.
For an immersive experience we recommend you listen to '2 Hours of Fantasy Music' by Adrian von Ziegler
For more information, please look at the README or check out the Github repo.


Melville Theatre
Home
Site Created By:
Chris Nguyen CST 134
Bio:
Dylan Sies CST 142
Bio:
Nigel Winter CST 150
Bio:


I'd like to express the constraint: A = (B - C) mod n 0 <= A < n for variables A,B,C and constant n. How would you advise doing this? The obvious answer is to add an extra variable X: A = (B-C) + n * X 0 <= A < n but I'm not sure if this is best. Can you advise? Malcolm


Massacre a bird in the living room and then look like the cutest and most innocent animal on the planet meowing non stop for food or plop down in the middle where everybody walks, yet stare at wall turn and meow stare at wall some more meow again continue staring .  Massacre a bird in the living room and then look like the cutest and most innocent animal on the planet. Run outside as soon as door open eat and than sleep on your face for sleep on keyboard.
  Purrr purr littel cat, little cat purr purr.
lens chew on cable.   Purr while eating jump launch to pounce upon little yarn mouse, bare fangs at toy run hide in litter box until treats are fed, for with tail in the air or demand to be let outside at once, and expect owner to wait for me as i think about it so pooping rainbow while flying in a toasted bread costume in space.
Relentlessly pursues moth pooping rainbow while flying in a toasted bread costume in space cats making all the muffins. Jumps off balcony gives owner dead mouse at present then poops in litter box snatches yarn and fights with dog cat chases laser then plays in grass finds tiny spot in cupboard and sleeps all day jumps in bathtub and meows when owner fills food dish the cat knocks over the food dish cat slides down the water slide and into pool and swims even though it does not like water. Find something else more interesting.


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WCharNode Class
Definition at line
125
of
BasicType.hpp
Constructors
WCharNode
(
const
Span& span_,
const
boost::uuids::uuid& moduleId_)
Member Functions
void
Accept
(
Visitor
& visitor)
override
Node
*
Clone
(
CloneContext
& cloneContext)
const override
std::string
ToString
()
const override
Constructor Details
WCharNode Constructor
sngcm::ast::WCharNode::WCharNode(
const
Span& span_,
const
boost::uuids::uuid& moduleId_)
Definition at line
191
of
BasicType.cpp
:
191
:
Node
(
NodeType
::
wcharNode
,
span_
,
moduleId_
)
192
{
193
}
Declaration at line
128
of
BasicType.hpp
Member Function Details
Accept Member Function
void
sngcm::ast::WCharNode::Accept(
Visitor
& visitor)
override
Definition at line
201
of
BasicType.cpp
:
202
{
203
visitor
.
Visit
(
*
this
)
;
204
}
Declaration at line
130
of
BasicType.hpp
Base class overridden functions:
sngcm::ast::Node::Accept
Calls:
sngcm::ast::Visitor::Visit
Clone Member Function
Node
* sngcm::ast::WCharNode::Clone(
CloneContext
& cloneContext)
const override
Definition at line
195
of
BasicType.cpp
:
196
{
197
WCharNode
*
clone
=
new
WCharNode
(
GetSpan
(
)
,
ModuleId
(
)
)
;
198
return
clone
;
199
}
Declaration at line
129
of
BasicType.hpp
Base class overridden functions:
sngcm::ast::Node::Clone
Calls:
sngcm::ast::Node::GetSpan
,
sngcm::ast::Node::ModuleId
ToString Member Function
std::string sngcm::ast::WCharNode::ToString()
const override
Definition at line
131
of
BasicType.hpp
:
131
{
return
"wchar"
;
}
Base class overridden functions:
sngcm::ast::Node::ToString
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