No tiling by convex heptagons
09 Mar 2018Fourth post of the GT CoA series, see here for the introduction.
The talk related to this post was given by Michaël Rao on his recent result about pentagonal tilings. This topic has been covered in many places (see for example Quanta magazine1 and this video. This post will focus on another aspect: what about heptagonal tilings? More precisely, how to show that there is no tiling of the plane with a convex heptagonal tile?
We first present a simple heurisitic proof that gives the intuition about why this holds, and then a more detailed proof. The first one uses simple geometry, the second is graph theoretical.
First (heuristic) proof via double-counting of the angles
Let a contact point be a place where three or more tiles meet. Without loss of generality wa can assume that tiles only meet at vertices, that is there is no contact point in the interior of an edge, it is always at an endpoint.2
As the sum of the interior angles of an $n$-gon is $(n-2)\times 180$ degrees, for an heptagon it is $5\times 180=900$ degrees. The average degree is $900/7\approx 129$ degrees. Which means that at one contact point there are in average $360/129\approx 2.8 $ heptagons meeting. This does not make sense because at every contact point there should be at least three tiles.
Second proof with planar graphs.
First attempt via the degree
Take an infinite tiling, and draw the following graph. In the middle of each tile draw a vertex, and between two vertices that represent adjacent tiles, draw an edge. This graph is infinite and planar. As the tiles are convex, there are at least seven different tiles adjacent to it, and then the minimum degree of a vertex in the graph is seven.
If you are used to planar graphs, you may think that this is enough to conclude. Indeed, it is known that the average degree of panar graphs is strictly smaller than six (see for example here), and the contradiction follows. Actually this is not enough because this average degree upper bound holds only in finite graph. As a counter-example to this in infinite graphs, consider an infinite regular tree with arbitrary large degree $d$ ; it is a planar graph and it has average degree $d$.
Euler formula on the dual
The degree bound comes form the classic tool for planar graphs, Euler’s formula. It states that $|V|-|E|+|F|=2$ for finite planar graphs, where $V$ is the set of nodes, $E$ is the set of edges, and $F$ is the set of faces. The problem is that it works only for finite graphs. We will consider a large enough part of the infinite graph and use Euler formula to prove the result.
This can probably be achieved in the graph we have defined, but it is more convenient on its dual. Given a tiling, consider every place where three or more tiles meet as a vertex, and the edges of the tiles are the edges of the graph. Basically drawing the tiling is drawing the graph.
Now consider a ball of radius $r$ much larger than the size of the tile, and the tiles that are at least partilly in this ball. There is order of $r^2$ tiles strictly inside the ball and $O(r)$ tiles at the boundary. Note that the tiles are the faces of the planar graph (except the outer face that is not a tile). A similar thing holds for vertices: there are $\Theta(r)$ vertices that are at the boundary, call them boundary nodes ($V_b$), and order of $r^2$ that are strictly inside the graph, called interior nodes ($V_i$).
We double-count edges. For every edge, divide it lengthwise into two half-edges. There are clearly $2|E|$ half-edges. Also every face except the outerface is a tile, so contributes seven half-edges. The number of half-edges of the outerface is in $O(r)$. Thus $2|E|=7|F|+O(r)$.
We now count the corners (or interior angles) of tiles. Every tile has seven corners, thus this number is exactly $7|F|$. As every interior node contributes at least three corners, $7|F|\geq 3|V_i|$.
Now using that $|V|=|V_i|+|V_b|$, then $|E|=\frac{7}{2}|F|+O(r)$ and finally $|F|\geq \frac{3}{7}|V_i|$ one gets: $-\frac{15}{14}V_i+V_b-O(r)\geq 2$. This is not possible because $V_i$ has a higher order of magnitude than the two other terms, thus the asymptotics should go to $-\infty$.
Notes et footnotes
Thanks to Michaël Rao for discussions.
-
There exists a translation in French, in Pour la science. ↩
-
This would need a proof, but roughly, having a contact point in the middle of an edge only make the argument stronger, as it forces the other angles to be small. ↩


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For this question, refer to the following code. Assume you have a jeroo object named kim that does not have a flower ahead of it.
while (kim.seesFlower(AHEAD)) { kim.hop(); kim.pick(); }
How many times would the following code run?
Remember there are no flowers ahead of the jeroo so kim.seesFlower(AHEAD) would be false.


Test passes if there is a capture photo showed and the Camera Pose can get values.
Camera Pose
transition:
rotation:


{% extends "base.html" %} {% load staticfiles %} {% load website_tags %} {% block content %}
I'm sorry, it looks like an error occurred. Go back to the start


Choose any one of the algorithm, heuristics and diagonal options
Click on the cell where you want to begin (Source)
Click on the cell to select end (Destination)
Click on the cells to create obstacles between the path
Click on the button start search after clicking on the next page
A* algorithm
A* Algorithm : A* is an informed search algorithm, meaning that it is formulated in terms of weighted graphs i.e.
starting from a specific starting node of a graph, it aims to find a path to the given goal node having the smallest
cost.
Heuristic
Options
Breadth first search algorithm
Breadth First Search Algorithm : In this algorithm, we start at the tree root and explore all of the neighbor nodes
at the present depth prior to moving on to the nodes at the next depth level.
Options
Best first search algorithm
Best First Search Algorithm : In best first search algorithm we use an evaluation function to decide which adjacent
is most promising and then explore it.
Heuristic
Options
Dijkstra algorithm
Dijkstra's Algorithm : In this algorithm, for a given source node we find the shortest path between that node and
every other. Hence, it can be used for finding the shortest paths from a single node to a single destination node by
stopping the algorithm once the shortest path to the destination node has been determined.


FROM THE DESK OF MR.MOHMED YAYA. AUDITING AND ACCOUNTING MANAGER, AFRICA DEVELOPMENT BANK (ADB) OUAGADOUGOU-BURKINA FASO. Dear Friend, I am the AUDITIING AND ACCOUNTING MANAGER AFRICA DEVELOPMENT BANK (ADB) here in Ouagadougou,Burkina Faso.In my department we discovered an abandoned sum of USD$15.5m(Fifteen million Five hundred thousand united states dollars).in an account that belongs to one of our foreign customer(MR.ARTHUR BILLINGS from AMERICA,USA)who died along with his entire family in Monday,31 July,2000,in a plane crash.FOR MORE INFORMATION VISIT THIS SITE BELOW: http://news.bbc.co.uk/1/hi/world/europe/859479.stm Since we got information about his death, we have been expecting his next of kin to come over and claim his money because we cannot release it unlessn some body applies for it as next of kin or relation to the deceased as indicated in our banking guidlings and laws but unfortunately we learnt that all his supposed next of kin or relation died alongside with him at the plane crash leaving nobody behind for the claim. It is therefore upon this discovery that I now decided to make this businessproposal to you and release the money to you as the next of kin or relation to the deceased for safety and subsequent disbursement since nobody is coming for it and we don't want this money to go into the bank treasury as unclaimed bill.The banking law and guidline here stipulates that if such money remained unclaimed after fours years, the money will be transfered into the bank treasury as unclaimed fund. The request of foreigner as next of kin in this business is occassioned by the fact that the customer was a foreigner and a Burkinabe cannot stand as next of kin to a foreigner. I agree that 30% of this money will be for you as a respect to the provision of a foriegn account , 10% will be set aside for expenses incurred during the business and 60% would be for me hereafter, I will visit your country for disbursement according to the percentage indicated Therefore, to enable the immediate transfer of this fund to you arranged,you must apply first to the bank as relation or next of kin of the deceased indicating your bank name, your bank account number, your private telephone and fax number for easy and effective communication and location where in the money will be remitted.Upon receipt of your reply, I will send to you by fax or email the text of application . I will not fail to bring to your notice this transaction is hitch-free and that you should not entertain any atom of fear as all required arrangements have been made for the transfer. You should contact me immediately as soon as you receive this letter.Trusting to hear from you immediately. Yours Faithfully, MR.MOHMED YAYA. MY PRIVATE TEL(00226 76 400 239.) Alternative<EMAIL_ADDRESS>URGENT BUSINESS TRANSACTION AND CONFIDENCIAL. ¡Sé listo! Contrata el antivirus http://www.pandasoftware.es/tienda/?idpers=109&track=13920


Pink ball Test: Virat Kohli breaks MS Dhoni record win 7th successive win as India captain
India vs Bangladesh, Pink ball Test: Virat Kohli led team India produced another dominating performance to register a thumping win over Bangladesh in their maiden Day-night Test.
HIGHLIGHTS
- Under Virat Kohli, it was India's 7th successive Test victory
- It was also India's record-extending 12th home series win
- With this Test win, Virat Kohli now has record-extending 11 innings win
India crushed Bangladesh by innings and 46 runs to prove no matter what color the ball is, they rule Test cricket at home. Once again, it was the ferocious pack of fast bowlers who wreaked havoc to reduce the visitors for a paltry 195 for 9 at another full house at Eden Gardens, Sunday.
Under Virat Kohli, it was India's 7th successive Test victory since winning the Test against West Indies in Antigua this August. It was only under MS Dhoni's leadership in 2013 (February-November) that India last had a 6-Test winning streak four vs Australia and two vs West Indies.
It was also India's record-extending 12th home series win. They had already surpassed Australia for 10 successive wins after whitewashing South Africa 3-0 to taste their 11th consecutive Test victory on home soil.
India vs Bangladesh Pink Ball Test Day 3: Highlights | Report
With this Test win, Virat Kohli now has record-extending 11 innings win. He had surpassed MS Dhoni (9) when India defeated Bangladesh by an innings and 130 runs in Indore. Mohammed Azharuddin had 8 innings wins followed by Sourav Ganguly with 7.
Virat Kohli also went past Australia skipper Allan Border's tally of 32 Test wins and is now fifth on the list of captains with most victories in the longest format. Former South Africa captain Graeme Smith is on top with 53 wins from 109 matches. Ricky Ponting is second with 48 wins in 77 matches while Steve Waugh is third with 41 wins in 57 matches.
Also, India became the only team in the history of Test cricket to win four consecutive Tests by an innings margin.
India's last four Tests:
Beat SA by innings & 137 runs, Pune
Beat SA by innings & 202 runs, Ranchi
Beat BAN by innings & 130 runs, Indore
Beat BAN by innings & 46 runs, Kolkata
Captains with most Test wins
53 Graeme Smith
48 Ricky Ponting
41 Steve Waugh
36 Clive Lloyd
33 Virat Kohli
India declared their first innings with for 347 for 9 after blistering 136-run knock from Virat Kohli and fifties from Cheteshwar Pujara and Ajinkya Rahane. When Bangladesh took the crease for their second innings it was the same old story as India's ruthless bowling attack, led by Ishant Sharma, rolled over Bangladesh for mere 195 for 9.


Operation Blue Moon
July 12, 2019
It’s been a couple of years since I read “i want 2 do project tell me wat 2 do”, which then landed me on the home page of Operation Blue Moon (OBM), a project run single-handedly by the author of the book - Shakthi Kannan (mbuf). It is aimed towards time management and getting things done.
The project not only borrows it’s name, but also the spirit of discipline, from our miliary counterparts. The practices here, built upon Shakthi’s years of experience of dealing with people trying, and failing, and learning from their mistakes, regarding time management.
OBM, at it’s core, provides one with a framework (the ability to define WHY, WHAT, WHEN and HOW) to align their thoughts, expectations and action practically, along with the ability to monitor your success. How does it do so? Read on.
It’s difficult. It’s this difficulty that creates the scarcity and you, the winner.
Every participant of OBM has a plan
file every plan
is inside a particular track (theme), eg. data scientist, devops, etc. - this
serves as WHY (an emacs org file), which enlists their goals - long term,
short term, secondary, etc. - all goals - The WHAT.
Then, under each subsequent heading, define what tasks do you need to do in order to achieve that goal - The HOW. The tasks have the following propoerties:
*** TODO Write one blog post
:PROPERTIES:
:ESTIMATED: 3
:ACTUAL:
:OWNER: RJ722
:ID: WRITE.1562247371
:TASKID: WRITE.1562247371
:END:
ESTIMATED
- The time you estimate you would take for completing the task.
ACTUAL
- The actual amount it takes for you to complete it.
OWNER
, ID
and TASKID
are there for better visualizations. (more on this
later)
I’ve the following function (courtesy of mbuf) in my spacemacs config to help me generate these tasks:
(define-skeleton insert-org-entry
"Prompt for task, estimate and category"
nil
'(setq task (skeleton-read "Task: "))
'(setq estimate (skeleton-read "Estimate: "))
'(setq category (skeleton-read "Category: "))
'(setq timestamp (format-time-string "%s"))
"*** TODO " task \n
":PROPERTIES:" \n
":ESTIMATED: " estimate \n
":ACTUAL:" \n
":OWNER: RJ722" \n
":ID: " category "." timestamp \n
":TASKID: " category "." timestamp \n
":END:")
The more important question is WHEN. Here’s where the ‘sprints’ chime-in. If you’re participating in OBM, you’re always sprinting (which makes perfect sense, since ideally you wouldn’t want yourself ‘unmanaging’ your time). A sprint, generally lasts for around 14-18 days. Before the sprint starts, move the tasks you want to get done in that sprint, under it’s ‘tab’ (which exists in the plan file, an example here). You also need to enter an average amount of time you can dedicate on a per day basis for this sprint.
Shakthi would then move such tasks from all participants to a file dedicated to
that sprint. The participants can now clock their tasks (track the amount of
time they have spend doing each of these tasks) - in emacs’ org mode
(org-clock-in
, org-clock-out
).
If you have done everything until now correctly, you should have a holistic view of how well your performance was for the last sprint. And, this is the most important step. Introspection - See what you did you wrong, what factor did you forget to take into account - how much was the difference between the actual and expected time of completion. Were you not able to complete all the tasks - why? what could you do to improve your estimates?
 Just doing the work, clocking it, and sending it over is enough to spark an introspective impulse. Just stick with the plan long enough and you’d see improvements. You’d see major improvements. I want to attribute the reason for OBM’s success to it’s simplicity, but it really is the discipline, showing up everyday and doing the work.
If you currently find yourself in a position, where it feels like you’re stuck - you know what you want to do, but there’s this ‘something’ stopping you, and it feels forever since you’ve been wanting to do this thing, but there’s been no tangible progress so far. Well, then OBM is exactly the right thing for you. With this framework, you’re forced to formalize things, diagnose the ‘something’ stopping you, make changes to your current schedule and to see the different between the direction you aim to go towards and the one where you’re heading (with your current planning).
Lastly, I want to thank Shakthi for all the energy and motivation he’s been pumping into the project himself. Thank you so much Shakthi!
Have fun experiencing OBM!


Friday: it has been a hard day work
February 9 2007, 11:53 AM
I've been teaching all day long. Although I had to give only 6 hours (officially), I did a bit more than 7 that day.
The thing is that when you start explaining something, you can't stop half way. And since I have a bit of professional consciousness, I couldn't let my student goin' back home for the weekend with things half done.
But thanks to my magic nap, it was ok :-)
I was tired though since it was the end of the week and my tiredness was accumulating through the previous days.
Today, we continued the relational algebra. And we applied it to real cases. Almost everyone (they were 12) had the chance to come in front of the class to resolve an exercise. I found out that There are 2 students who really have a low level compares to the others. And three that have a much better level than the average of the class. It's quite difficult to manage that. If you take time to explain things clearly then it's quite boring for the best students, otherwise, the lower end of the students can't follow.
At 12 o'clock, we had a special break. Wine and cheese on behalf of Enrique, a Spanish teacher of mathematics who left us two days before.


Installing MariaDB with yum
Contents
For CentOS, RedHat, and Fedora, it is highly recommended to install from a
repository using yum
. This page walks you through the simple steps.
Adding the MariaDB YUM Repository
We have YUM repositories for several YUM-based Linux distributions. To easily generate the appropriate MariaDB.repo entry for your distribution, use our online repository generator.
We currently have YUM repositories for CentOS 5, CentOS 6, CentOS 7, RHEL 5, RHEL 6, RHEL 7, and Fedora 22, 23 and 24.
Once you have your MariaDB.repo entry, add it to a file under
/etc/yum.repos.d/
. (We suggest something like
/etc/yum.repos.d/MariaDB.repo
.)
An example MariaDB.repo
file for CentOS 7 is:
[mariadb] name = MariaDB baseurl = http://yum.mariadb.org/10.1/centos7-amd64 gpgkey=https://yum.mariadb.org/RPM-GPG-KEY-MariaDB gpgcheck=1
The example file above includes a gpgkey
line to automatically fetch the
GPG key we use to sign the repositories. This key enables yum
and rpm
to verify the integrity of the packages it downloads.
The id of our signing key is 0xcbcb082a1bb943db
. The short form of the id
is 0x1BB943DB
and the full key fingerprint is:
1993 69E5 404B D5FC 7D2F E43B CBCB 082A 1BB9 43DB
If you wish to fix the version to an older version, or do a yum downgrade
, you can create a yum repo definition with a baseurl set to a specific version. yum clean metadata
is needed if you change an existing repo definition:
[mariadb] name = MariaDB-5.5.39 baseurl=https://downloads.mariadb.com/files/MariaDB/mariadb-5.5.39/yum/rhel6-amd64/ # alternative: baseurl=http://archive.mariadb.org/mariadb-5.5.39/yum/rhel6-amd64/ gpgkey=https://yum.mariadb.org/RPM-GPG-KEY-MariaDB gpgcheck=1
Installing MariaDB with YUM
With the repo file in place you can now install MariaDB like so:
sudo yum install MariaDB-server MariaDB-client
If you don't have the MariaDB GPG Signing key installed, YUM will prompt you to install it after downloading the packages (but before installing them).
If the server already has the MariaDB-Galera-server package installed, you
might need to remove it prior to installing MariaDB-server
(with 'sudo yum remove MariaDB-Galera-server
'). No databases are removed
when the MariaDB-Galera-server rpm package is removed, but as with any upgrade,
it is best to have backups.
Installing TokuDB with YUM
Instructions for installing TokuDB are on the How to Enable TokuDB in MariaDB page.
Installing MariaDB Galera Cluster with YUM
MariaDB until 10.0
Galera Cluster is included in the default MariaDB packages from 10.1, so the instructions in this section are only required for MariaDB 10.0 and MariaDB 5.5.
The instructions for installing MariaDB Galera Cluster are virtually the same as for installing MariaDB. The setup of the repo file is the same. The only difference is in the install step. Instead of installing the MariaDB-server package, you install the MariaDB-Galera-server and galera packages, like so:
sudo yum install MariaDB-Galera-server MariaDB-client galera
As with MariaDB-server, if you don't have the MariaDB GPG Signing key installed, YUM will prompt you to install it after downloading the packages (but before installing them).
If the server already has the MariaDB-server package installed, you might need
to remove it prior to installing MariaDB-Galera-server
(with 'sudo yum remove MariaDB-server
'). No databases are removed when the
MariaDB-server rpm package is removed, but as with any upgrade, it is best to
have backups.
See the Galera section of the Knowledgebase for more information on MariaDB Galera Cluster.
After Installation
After the installation completes, start MariaDB with:
sudo systemctl start mariadb
or if your system is not using systemctl
:
sudo /etc/init.d/mysql start
Manually Importing the MariaDB Signing Key
If you like, you can manually install the GPG key using the rpm
application
like so:
sudo rpm --import https://yum.mariadb.org/RPM-GPG-KEY-MariaDB


I am a passionate and multi-skilled Graphics and Multimedia designer. I have worked with various marketing personnel to concept, research and design promotional print, corporate collateral, and packaging design. The following are but a few of the companies that I have worked with–First National Bank, Investec Bank & ABSABank to name a few, both with their mother brand corporate identity and with-out.
Download my Resume for futher details of my skills and skill sets. Thank you.
view / download


{% extends 'author_app/base.html' %} {% load static %} {% block content %} Journal Submission Process Plan your writing before you begin Register {% csrf_token %} Name: Email: Username: Password: Type: Select Type Author Reviewer Editor Department/Center: Contact No: {% endblock %}


iPad Laptop
I’ve recently been on holiday and decided that I wouldn’t take my laptop with me, I’d stick with my iPad Mini. I felt that I’d be able to do everything I needed to with just iOS.
Turns out, I’m not far wrong.
Keyboard
Perhaps the biggest bugbear was the keyboard. I’ve got the Logitech Keys-to-go and whilst it’s small and lightweight, I’m not a fan of using it. I’ve found that I have to hit the keys quite hard to get them to register and that isn’t that comfy. However, for what I needed the keyboard for whilst travelling, it does the job.
Zim
Zim has become my journalling software of choice since Day One went to self run cloud sync. Zim doesn’t have an iOS app so I’m not really able to get the full effect of using it on my iPad. However, it stores all of it’s data in text files, so I’m able to use any text editor on the iPad to write in it.
I use Editorial to edit my files on the iPad, using the workflows I describe here.
With this, I was able to keep up my journalling habit without much hassle and was even able to add photos to my entries. When I got back to my PC, I was able to view everything had worked fine in Zim itself (access either via VNC on my Linux machine or the Linux Virtual Machine I keep on my Mac).
iCab Mobile
Where needed, iCab Mobile was able to download files etc for me where Safari would let me down. For example, with iCab, I was able to download GPX files from Strava and place them in Dropbox ready for when I returned to a computer and could file them on my NAS (as it was down for the duration of my trip, due to a house move).
Overall, it worked pretty well and I didn’t miss the laptop to much - certainly not with the carrying it around!


@* * Copyright 2023 HM Revenue & Customs * * 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. *@ @(params: Map[String, Any]) @uk.gov.hmrc.hmrcemailrenderer.templates.helpers.html.template_main(params, "") {
Subject:
Your HMRC @{params("serviceName")} request
Heading:
Contact HMRC now to update details
To @{params("name")},
You recently requested access to use @{params("serviceName")}. To continue we need to send you an Activation Code.
We have not been able to post your Activation Code to you because we do not have your up-to-date address or your tax record has been closed.
What you need to do now
Contact HMRC to update your tax record - search for ‘Contact HMRC’ to find HMRC telephone numbers.
This is an automatic email – do not reply.
From HMRC Digital Support team
}


Correct value errors
-
Your data is incorrect
You must give an allowable value for your data. As well as numbers you can include the symbols < or >. You can also include 0 (zeros). Don’t include any other text characters.
If you need to give a non-numerical reading use ‘See comment’ in Txt_Value and add an entry in the Comments field.
| Row number(s) | Error | Your data |
|---|---|---|
| 216-219 | Incorrect | ~1.5 |


Stones
问题描述 :
Because of the wrong status of the bicycle, Sempr begin to walk east to west every morning and walk back every evening. Walking may cause a little tired, so Sempr always play some games this time.
There are many stones on the road, when he meet a stone, he will throw it ahead as far as possible if it is the odd stone he meet, or leave it where it was if it is the even stone. Now give you some informations about the stones on the road, you are to tell me the distance from the start point to the farthest stone after Sempr walk by. Please pay attention that if two or more stones stay at the same position, you will meet the larger one(the one with the smallest Di, as described in the Input) first.
There are many stones on the road, when he meet a stone, he will throw it ahead as far as possible if it is the odd stone he meet, or leave it where it was if it is the even stone. Now give you some informations about the stones on the road, you are to tell me the distance from the start point to the farthest stone after Sempr walk by. Please pay attention that if two or more stones stay at the same position, you will meet the larger one(the one with the smallest Di, as described in the Input) first.
输入:
In the first line, there is an Integer T(1<=T<=10), which means the test cases in the input file. Then followed by T test cases.
For each test case, I will give you an Integer N(0<N<=100,000) in the first line, which means the number of stones on the road. Then followed by N lines and there are two integers Pi(0<=Pi<=100,000) and Di(0<=Di<=1,000) in the line, which means the position of the i-th stone and how far Sempr can throw it.
For each test case, I will give you an Integer N(0<N<=100,000) in the first line, which means the number of stones on the road. Then followed by N lines and there are two integers Pi(0<=Pi<=100,000) and Di(0<=Di<=1,000) in the line, which means the position of the i-th stone and how far Sempr can throw it.
输出:
Just output one line for one test case, as described in the Description.
样例输入:
2 2 1 5 2 4 2 1 5 6 6
样例输出:
11 12
#include<iostream> #include<cstdio> #include<cstdlib> #include<cstring> #include<string> #include<queue> #include<algorithm> #include<map> #include<iomanip> #define INF 99999999 using namespace std; typedef pair<int,int>mp; struct cmp{ bool operator()(mp a,mp b){//first表示位置,second表示距离 if(a.first == b.first)return a.second>b.second;//距离从小到大排序 return a.first>b.first;//位置从小到大排序 } }; priority_queue<mp,vector<mp>,cmp>oq; int main(){//优先队列插入复杂度logN int t,n,a,b; cin>>t; while(t--){ cin>>n; while(!oq.empty())oq.pop(); for(int i=0;i<n;++i){ cin>>a>>b; oq.push(mp(a,b)); } int num=1; mp next; while(!oq.empty()){ next=oq.top(); oq.pop(); if(num&1)oq.push(mp(next.first+next.second,next.second)); ++num; } printf("%d\n",next.first); } return 0; }
解题报告转自：http://blog.csdn.net/xingyeyongheng/article/details/11015689
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请不要灌水，多谢！
补充：此算法求出的不一定是最优解，之前理解错了
写的好····· Pollard Rho快速因数分解
秒！~
程序是对的。有些地方用了C++的写法
涨姿势了
输出规范写错了哦~
第一段代码中：
next = next ;
明显不对吧，应该是 next =j;才对
aha, welcome!
18题的C也是错误的
这个是代码高亮功能，那就再换一个颜色
很好！！
88行是多余的，可以删除
楼主 为什么输入的形式都不对 题目是不是弄错了？


Language specific action description.
ID of the field, the value should be inserted in.
Language specific action names.
Path to the object the value should be inserted in.
Indicates whether existing values should be replaced. Note: for multi fieldsets and relations, this setting controls, if the value is added to the already existing values or if the existing values shall be overwritten.
Optional trace log reference ID set by the system when EnableTracing is set to true on the associated rule.
Value to assign.
Generated using TypeDoc
Assign a value to all fields matching the FieldPath (JSON path).


外部资源, 视频 和 谈论¶
For written tutorials, see the Tutorial section of the documentation.
Python科学计算的小白?¶
For those that are still new to the scientific Python ecosystem, we highly recommend the Python Scientific Lecture Notes. This will help you find your footing a bit and will definitely improve your scikit-learn experience. A basic understanding of NumPy arrays is recommended to make the most of scikit-learn.
外部教程¶
There are several online tutorials available which are geared toward specific subject areas:
视频¶
An introduction to scikit-learn Part I and Part II at Scipy 2013 by Gael Varoquaux, Jake Vanderplas and Olivier Grisel. Notebooks on github.
Introduction to scikit-learn by Gael Varoquaux at ICML 2010
A three minute video from a very early stage of scikit-learn, explaining the basic idea and approach we are following.
Introduction to statistical learning with scikit-learn by Gael Varoquaux at SciPy 2011
An extensive tutorial, consisting of four sessions of one hour. The tutorial covers the basics of machine learning, many algorithms and how to apply them using scikit-learn. The material corresponding is now in the scikit-learn documentation section 用于科学数据处理的统计学习教程.
Statistical Learning for Text Classification with scikit-learn and NLTK (and slides) by Olivier Grisel at PyCon 2011
Thirty minute introduction to text classification. Explains how to use NLTK and scikit-learn to solve real-world text classification tasks and compares against cloud-based solutions.
Introduction to Interactive Predictive Analytics in Python with scikit-learn by Olivier Grisel at PyCon 2012
3-hours long introduction to prediction tasks using scikit-learn.
scikit-learn - Machine Learning in Python by Jake Vanderplas at the 2012 PyData workshop at Google
Interactive demonstration of some scikit-learn features. 75 minutes.
scikit-learn tutorial by Jake Vanderplas at PyData NYC 2012
Presentation using the online tutorial, 45 minutes.


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Let me just say that learning about classes in Ruby makes me feel like I'm really getting the computer to work for me. With the foundational understanding of strings, integers, and arrays- all of which are objects- it felt fairly intuitive constructing my first class.
 What I mean by that is better described by David A. Black, author of The Well Grounded Rubyist. In his words, "if you’re running an online box office and your database has to process records for tickets by the hundreds, you’ve got to find another way to create and manipulate ticket-like objects in your Ruby programs." Classes further simplify your life by allowing you to group methods into what Black calls "bundles".
Below I've outlined an example of how one might organize data about someone's surfing capabilities in order to determine what kind of board they need. Take good ole Rick, for example. He's a good surfer, but intermediate at best. He only weighs a buck fifty, but thinks he's going to charge big North Shore waves. So what kind of board does he need? First, let's create a class to bundle all of this information.
Once we've named our class, we'll initialize the instance variables we intend to use. We're going to need to know Rick's experience level, weight, and what size waves he plans to ride to give him the best advice on a board.
We want Rick to understand how his experience and weight affects board size- maybe after he spends some time training, we can reassign some of these variables.
Here is a unique situation: sometimes beginners don't have a sense for their limits and go for bigger waves than they are ready for. Just because Rick thinks he is capable of surfing pipeline, doesn't mean he's ready for it or that he should be riding a gun! Sometimes you just need to be called out and that's what this method does when wave size is over 16 feet and the experience level is either beginner or intermediate (line 38).
So what happens when Rick tries to get a new board after cracking his at pipe?
Here's our output:
What a barnyard! Good thing Chandler schools Rick on soul surfing and understanding what board he's capable of riding.


It’s been 230 days (or so) since my last post and looking back at my 2013 Ahead I feel like I’ve done a decent job with some of the things on that list, minus the utter lack of writing that has occurred. And while the last seven months have been creative and good, they have felt scattered and unfocused in some ways. I’ve been lacking a system of organization even though I haven’t missed the lack of one, until recently.
I started reading the book Making Ideas Happen by Scott Belsky, the founder of the Behance network and the creator of the Action Method, and started mulling over my lack of creative method. While not an egregious omission from my life, I imagine it keeps me from really tackling all of the things that need to get done in an effective and efficient manner.
With that in mind, I’ve taken it upon myself to piece my own Creative Method together using tools I like and some systems that work for other people.
A creative method in four parts.
Part One - Action Items
The central part of the Action Method is the Action Item: a discrete, actionable (get it?) piece of work that can be captured and checked off.
The Action Item is what drives work forward; if you can’t act on something, it’s just going to languish and never get done. It helps you to break work into discrete pieces that you can finish.
Part Two - Evernote
I’ve used Evernote in the past to capture notes (surprised, right?), images of white boarding sessions and sketches, and even to outline ideas for writing. However, I hadn’t though to use it as an organizational system until I read Connected UX and combined it with pieces of the Action Method from Making Ideas Happen.
It has everything that I need: tags, search, notes, photo capturing, memos. It’s a great place to store references, clip websites and articles, capture notes, create to-do lists, but most importantly to create a structured set of tags and searchable metadata around pieces of information.
Most to-do list applications, including the Action Method app, eventually fell by the wayside, replaced by sticky note to-do lists plastering the edges of my monitor, because they weren’t connected to the rest of the information I needed. Evernote gave me the perfect combination of unstructured data input with structured metadata that I could then query and act on.
Part Three - Daily Planning
It’s easy to get into the office in the morning and get swept up in the bustling web of email, social networks, and meetings without even a nod to what you need to tackle that day. I’ve lost a lot of days to these kinds of mornings (including today) and they suck. They are hard to recover from without resetting your day somehow (hitting the gym is usually my only good reset button).
Out of this planning wasteland were born my morning planning sessions. The first thing I do is sit down at my desk and go through my action items. I select a couple of high priority ones that will take dedicated time, often more involved design or analysis tasks. Also immediately tackling a few quick-to-knock-off action items, usually email followups or planning items. I’ll also quickly triage my email if I have time, create follow-up action items and get moving on my day.
Part Four - Daily Retro
I took this idea from our agile practice at work but compressed it to a daily practice. It’s a quick look at what went well, what didn’t go well, and what I should think about changing. It’s bit of a reflective +/-/Δ moment where I try to understand how my day went.
I also use this time to add any end of day action items that I’ve jotted down on paper throughout the day that haven’t made it into Evernote yet.


The TF-MxNE solver is a distributed inverse method (like dSPM or sLORETA) that promotes focal (sparse) sources (such as dipole fitting techniques). The benefit of this approach is that:
- it is spatio-temporal without assuming stationarity (sources properties can vary over time)
- activations are localized in space, time and frequency in one step.
- with a built-in filtering process based on a short time Fourier transform (STFT), data does not need to be low passed (just high pass to make the signals zero mean).
- the solver solves a convex optimization problem, hence cannot be trapped in local minima.
References:
A. Gramfort, D. Strohmeier, J. Haueisen, M. Hamalainen, M. Kowalski Time-Frequency Mixed-Norm Estimates: Sparse M/EEG imaging with non-stationary source activations Neuroimage, Volume 70, 15 April 2013, Pages 410-422, ISSN 1053-8119, DOI: 10.1016/j.neuroimage.2012.12.051.
A. Gramfort, D. Strohmeier, J. Haueisen, M. Hamalainen, M. Kowalski Functional Brain Imaging with M/EEG Using Structured Sparsity in Time-Frequency Dictionaries Proceedings Information Processing in Medical Imaging Lecture Notes in Computer Science, 2011, Volume 6801/2011, 600-611, DOI: 10.1007/978-3-642-22092-0_49 https://doi.org/10.1007/978-3-642-22092-0_49
# Author: Alexandre Gramfort<EMAIL_ADDRESS>#
# License: BSD (3-clause)
import mne
from mne.datasets import sample
from mne.minimum_norm import make_inverse_operator, apply_inverse
from mne.inverse_sparse import tf_mixed_norm
from mne.viz import plot_sparse_source_estimates
print(__doc__)
data_path = sample.data_path()
subjects_dir = data_path + '/subjects'
fwd_fname = data_path + '/MEG/sample/sample_audvis-meg-eeg-oct-6-fwd.fif'
ave_fname = data_path + '/MEG/sample/sample_audvis-no-filter-ave.fif'
cov_fname = data_path + '/MEG/sample/sample_audvis-shrunk-cov.fif'
# Read noise covariance matrix
cov = mne.read_cov(cov_fname)
# Handling average file
condition = 'Left visual'
evoked = mne.read_evokeds(ave_fname, condition=condition, baseline=(None, 0))
evoked = mne.pick_channels_evoked(evoked)
# We make the window slightly larger than what you'll eventually be interested
# in ([-0.05, 0.3]) to avoid edge effects.
evoked.crop(tmin=-0.1, tmax=0.4)
# Handling forward solution
forward = mne.read_forward_solution(fwd_fname, force_fixed=False,
surf_ori=True)
Run solver
# alpha_space regularization parameter is between 0 and 100 (100 is high)
alpha_space = 50. # spatial regularization parameter
# alpha_time parameter promotes temporal smoothness
# (0 means no temporal regularization)
alpha_time = 1. # temporal regularization parameter
loose, depth = 0.2, 0.9 # loose orientation & depth weighting
# Compute dSPM solution to be used as weights in MxNE
inverse_operator = make_inverse_operator(evoked.info, forward, cov,
loose=loose, depth=depth)
stc_dspm = apply_inverse(evoked, inverse_operator, lambda2=1. / 9.,
method='dSPM')
# Compute TF-MxNE inverse solution
stc, residual = tf_mixed_norm(evoked, forward, cov, alpha_space, alpha_time,
loose=loose, depth=depth, maxit=200, tol=1e-4,
weights=stc_dspm, weights_min=8., debias=True,
wsize=16, tstep=4, window=0.05,
return_residual=True)
# Crop to remove edges
stc.crop(tmin=-0.05, tmax=0.3)
evoked.crop(tmin=-0.05, tmax=0.3)
residual.crop(tmin=-0.05, tmax=0.3)
# Show the evoked response and the residual for gradiometers
ylim = dict(grad=[-120, 120])
evoked.pick_types(meg='grad', exclude='bads')
evoked.plot(titles=dict(grad='Evoked Response: Gradiometers'), ylim=ylim,
proj=True)
residual.pick_types(meg='grad', exclude='bads')
residual.plot(titles=dict(grad='Residuals: Gradiometers'), ylim=ylim,
proj=True)
View in 2D and 3D (“glass” brain like 3D plot)
plot_sparse_source_estimates(forward['src'], stc, bgcolor=(1, 1, 1),
opacity=0.1, fig_name="TF-MxNE (cond %s)"
% condition, modes=['sphere'], scale_factors=[1.])
time_label = 'TF-MxNE time=%0.2f ms'
clim = dict(kind='value', lims=[10e-9, 15e-9, 20e-9])
brain = stc.plot('sample', 'inflated', 'rh', clim=clim, time_label=time_label,
smoothing_steps=5, subjects_dir=subjects_dir)
brain.show_view('medial')
brain.set_data_time_index(120)
brain.add_label("V1", color="yellow", scalar_thresh=.5, borders=True)
brain.add_label("V2", color="red", scalar_thresh=.5, borders=True)
Script output:
Updating smoothing matrix, be patient..


WebUI places a lot of emphasis on the ability to create menus in the style that you want. As you will see, there are a lot of customisation options available. Menus do require the webui.js javascript file to be included in your project as well as the CSS, but you won't have to write any javascript except for setting configuration options as explained a bit later. First, let's take a look at some simple menus and then progress to the more advanced features.

 <button id="Menu1" class="menu-activator menu-button-sm menu-button-accent-1 text-left">Option 1</button>
 <button class="menu-button-sm menu-button-accent-1 background-hover-accent-2 text-left">Item 1</button> <button class="menu-button-sm menu-button-accent-1 background-hover-accent-2 text-left">Item 2</button> <button class="menu-button-sm menu-button-accent-1 background-hover-accent-2 text-left">Item 3</button> <button class="menu-button-sm menu-button-accent-1 background-hover-accent-2 text-left">Item 4</button> <button class="menu-button-sm menu-button-accent-1 background-hover-accent-2 text-left">Item 5</button>

 <button id="Menu2" class="menu-activator menu-button-sm menu-button-accent-1 text-left">Option 2</button>
 <button class="menu-button-sm menu-button-accent-1 background-hover-accent-2 text-left">Item 1</button> <button class="menu-button-sm menu-button-accent-1 background-hover-accent-2 text-left">Item 2</button> <button class="menu-button-sm menu-button-accent-1 background-hover-accent-2 text-left">Item 3</button> <button class="menu-button-sm menu-button-accent-1 background-hover-accent-2 text-left">Item 4</button> <button class="menu-button-sm menu-button-accent-1 background-hover-accent-2 text-left">Item 5</button>

 <input type="text" class="input-sm height-control-xs rounded-sm width-xl" />

The code example above shows a basic menu for a typical desktop layout, where a number of fixed widths are used and we haven't added any media flags for responsive behaviour. WebUI allows the use of almost any html elements to build a menu, and you are not limited to buttons or lists. It is worth noting that WebUI includes menu button types that are specifically styled and sized to suit menu layouts.
Let's examine the important parts as follows:
menu-bar-sm - There are two menu-bar classes - menu-bar and menu-bar-sm. You don't always need them, but it's as well to add one of them, since they set a height and maximum height on the menu bar to match the height of corresponding controls that may be used. Of course, if you have your own custom elements that don't fit those dimensions, then you probably don't want it.
menu-activator - This class registers a control as the element that will be the trigger to open and close a menu. You can use just about any element as the menu activator.
dropdown-content - The dropdown-content class registers an element to be the container for any dropdown content. The dropdown content itself can be anything you want.
menu-close - Specifying menu-close on the dropdown container will make the dropdown close after a menu item such as a button or link is clicked or tapped. If you happened to have content other than buttons and links and you want to toggle it via script, you can do that by calling the toggleMenuItem WebUI function and passing in the menu activator element id or as an object.
Here's how the above code example would look.
So, what if we want a menu option near to the right of the menu and we want the dropdown to point from right to left? In this case we can just add the dropdown-right class to the dropdown content container.
Creating responsive menus
There are many styles of responsive menu, and one of the most popular for smaller screen sizes is the full width collapsible type. The menu simply expands and shrinks as you open and close menus options. Very often the menu will also push down any page content that may be displayed below it.The following code will produce that kind of menu

 <button id="menuButtonHamburgerMobile" class="menu-activator menu-button menu-button-accent-1 width-md-lg"></button>
 <button class="menu-activator menu-button-sm menu-button-dark align-left">Menu 1</button>
 <button class="menu-button menu-button-sm menu-button-accent-5 align-left">Item 1</button> <button class="menu-button menu-button-sm menu-button-accent-5 align-left">Item 2</button> <button class="menu-button menu-button-sm menu-button-accent-5 align-left">Item 3</button> <button class="menu-button menu-button-sm menu-button-accent-5 align-left">Item 4</button> <button class="menu-button menu-button-sm menu-button-accent-5 align-left">Item 5</button>
 <button class="menu-activator menu-button-sm menu-button-dark align-left">Menu 2</button>
 <button class="menu-button menu-button-sm menu-button-accent-5 align-left">Item 1</button> <button class="menu-button menu-button-sm menu-button-accent-5 align-left">Item 2</button> <button class="menu-button menu-button-sm menu-button-accent-5 align-left">Item 3</button>

On line 5 a the class dropdown-content-expand is added - this is actually the class that will make the menu push any page content down as you expand the menu. If you prefer the menu to overlay any page content you can replace just that single top most dropdown-content-expand with dropdown-content. There is a third kind of dropdown container called dropdown-sheet - this is used mainly for desktop sized screens and is often used on ecommerce sites.
NOTE: If you do use dropdown-content instead of dropdown-content-expand on the top most activator button for a mobile menu, you will need to add the menu-inclusive class as well, otherwise the menu will close when selecting sub menu activators. That's because dropdown-content on its own will close all other menus by default and would normally be used for the desktop style menu.
The screenshot below shows the result of the above code.
Customisation
OK, now let's do some customisation of our first menu. Say we want to have a white dropdown with a small arrow on top, and maybe a black border and make the corners a bit rounded. Oh, and let's make it dropdown on hover instead if the default click. No problem, taking the second menu section (lines 7 - 14) from our first example we can change it as follows:

 <button id="Menu1" class="menu-activator-dynamic menu-button-sm menu-button-accent-5 text-left">Option 1</button>

 <button class="menu-button-sm menu-button-light background-hover-secondary text-left rounded-top-md">Item 1</button> <button class="menu-button-sm menu-button-light background-hover-secondary text-left">Item 2</button> <button class="menu-button-sm menu-button-light background-hover-secondary text-left">Item 3</button> <button class="menu-button-sm menu-button-light background-hover-secondary text-left">Item 4</button> <button class="menu-button-sm menu-button-light background-hover-secondary text-left rounded-bottom-md">Item 5</button>

The first thing is to change the class menu-activator to menu-activator-dynamic - this makes the menu activate on hover instead of a click. On touch screen devices it will be converted to a tap. The next change is the addition of the pointer (lines 4 - 6). Here we just need a div with two classes, pointer-top-sm and pointer-top-default. The first class establishes that we are defining a pointer at a given size (in this case small), and the second makes a top pointer in the default theme colour. You could easily use a different theme colour for the pointer using another class such as pointer-top-accent-1, for example. Then we can wrap the pointer div just to give some left spacing and push it to the right a bit. Finally, the menu dropdown buttons have been wrapped with a div tag that has a border and rounding.
Here's how that looks in the browser.
Configuration options
There are two configuration options available for menus which control transitions when dropdowns are shown and hidden. The transitionType can be set to either "fade" or "collapse". If don't need the transitions just set remove the ui.initMenus function or set transitionDuration to 0. The following code shows how to configure these options.webui.ready(function() { ui.initMenus({ transitionDuration: 1000, transitionType: "collapse" }); });
Events
There are 4 event callbacks that can be used, ui.dropdown.show.before, ui.dropdown.show.after, ui.dropdown.hide.before, and ui.dropdown.hide.after.


Cognitive Science
Research shows that training by itself is not sufficient to ensure learning. It needs to be complemented by tests. However, one-time tests encourage temporary rote learning and are ineffective in long-term retention. Multiple studies show that Interspaced learning through periodic quizzes is a highly effective way to increase cognition and retention.
SmartWinnr helps your team to increase their knowledge and improve retention through periodic short SmartQuizzes and SmartFeeds - Twitter-like feed with individualized knowledge content.


So this is 2019 2020 2021 and the world is still changing but I still feel there is a missing
usefull solution for a simple timepicker control.
I liked the first version i wrote some years ago but binding to a framework (jQuery) now feels like it is not the best way.
This implementation of the timepicker is completely vanilla and has no dependencies.


Party
This year's party is in a new location: The Pennant in Mission Beach. Look at the map. The shortest way to get there from the fields is literally to swim there. Not that we'd suggest anything like that...
- You will need wristbands to get in. Captains, don't leave the fields Saturday without wristbands for your team.
- The party is 21+ (sorry, young'uns) and you can NOT bring outside alcohol. It's a bar.
- The bar tab opens at 9:00pm and goes until we run out of money. Once you're buying your own drinks, it is cash only.
- The bar closes at 2am.
- Street parking outside the bar is scarce. Park just north of the bar in the public lot marked on the map. This lot is open until 2am but you will probably not get ticketed, towed, or blocked in if your car is left there after 2.
- Remember, friends don't let friends drink and drive (or swim) home.
View One Love One Beach in a larger map


Are you looking for a car to navigate around Australia? Drive Car Hire is the perfect solution for domestic and international travellers. We offer a wide range of vehicles to choose from, from small cars to large vans. Our brilliant booking system gives you access to a variety of rental cars at our Australian depot to use for your next trip. At Drive Car Hire , we own a fleet with a wide array, ranging from compact cars to larger sedans and the increasingly popular SUVs. Our vehicles have enough space to accommodate you, even when you are travelling with your family and/or luggage. There are no hidden costs, so you don’t have to worry about the price skyrocketing. In most instances, the costs of a hire car in Australia with Drive Car Hire are less compared to hiring taxis, saving you money for your trip.


First feature film! Very excited how it turned out. Centered on an Asian American family and the struggles they go through, all taking place in the family restaurant. Enjoy!
This is a film that I worked on for RTF343 Advanced Narrative. It's a story about an old couple and the difficulties they face. I chose this story because I knew it would be hard on the actors and I wanted to challenge myself as a director.
I made this film for RTF318 Intro to Narrative Production. It's a story about a couple and how they first met. I chose this story because it was simple and enjoyable.
I made this film as my final project for the Liberal Arts Digital Storytelling Seminar. It's a story about a couple at three different points in their lives; when they were children, college age, and adult. It chose this story because it was difficult to tell and I knew I would need to take my production quality to the next level. The story was beautiful and painful and it needed non-linear storytelling and beautiful cinematography and music to match.
This was my first short film made for high school macroeconomics class. It's a story about a government official whose arrogance helped cause the Great Depression and the redemption he seeks from it. I chose this story because it had to be somewhat related to economics. Also our production value and timeframe made it so we had to do a mostly dialogue based story with minimal locations.


Australia vs Pakistan, 1st Test, Day 1: Josh Hazlewood cites 'huge' Babar Azam wicket as key for Australia
by OmnisportJosh Hazlewood hopes his dismissal of Babar Azam can set the tone for the series after Australia dismissed Pakistan for 240 on day one of the first Test.
Babar is a man in form but survived just four deliveries before falling victim to a full and wide one from Hazlewood, edging into the hands of Joe Burns at first slip.
It was an ill-judged shot that limited Babar's first-innings contribution at the Gabba to just one run, and Hazlewood wants to restrict his input across both matches.
"It's huge to try to stay on top of him, for sure," Hazlewood said, having helped to check Pakistan's progress after they reached 75 without loss in Brisbane.
"He's probably coming off T20 cricket as well and we know he's a stroke-maker and he certainly likes to put the pressure back on you as a bowler.
"I feel if you can get him early, you can get a rash shot like that sometimes.
"If he drives for four, he's sort of away as well in his game. So it can go both ways there, but we were lucky enough to get the nick and hopefully stay on top of him for the series."
Hazlewood claimed figures of 2-46, while Mitchell Starc starred with the ball as he took 4-52.
Among Starc's scalps was Naseem Shah, Pakistan's 16-year-old debutant who had earlier dug in to deny the bowler a hat-trick.
Naseem, far more at home with the ball in hand, will now hope to stifle the hosts' reply on Friday.


Hankerson’s late 3 lifts Green Bay past CS Northridge 85-84
GREEN BAY, Wis. (AP) - Kameron Hankerson drained the last 3-pointer of the game to give Green Bay an 85-84 victory over Cal State Northridge on Monday night.
The teams traded 3s and the lead in the final minutes before Hankerson hit the game-winning shot with 57 seconds remaining. CSU Northridge’s Terrell Gomez hit a trey for an 84-82 lead 30 seconds earlier after Green Bay’s PJ Pipes hit a 3-point jumper with 1:43 remaining in the game.
Lance Coleman II got off a shot behind the arc in the final second but came up short for CSU Northridge which has started the season 0-7.
JayQuan McCloud led Green Bay (3-3) with 20 points, Pipes finished with 16 while dishing out seven assists. Amari Davis added 15 points and Cody Schwartz had 13 points for the home team.
Terrell Gomez had 30 points for the Matadors. Darius Brown II added 18 points and seven assists. Coleman had 17 points and eight rebounds.
Green Bay takes on Colgate at home on Tuesday. Cal State Northridge looks for its first win against Fresno State at home on Saturday.
For more AP college basketball coverage: https://apnews.com/Collegebasketball and http://twitter.com/AP_Top25
Elements of this story were generated by Automated Insights, http://www.automatedinsights.com/ap, using data from STATS LLC, https://www.stats.com
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Vec2 class
Basic usage
Vec2 is the class used for all 2 dimensions vector manipulations.
Creation
To create a new Vec2, just use its constructor.
If used without parameters, it will create a null vector Vec2 with X and Y components equal to 0.
Use chaining
Since most of the Vec2 methods return the vector itself, you can use chaining:
onChange callback
Vec2 class is using getters and setters, allowing to execute a function each time one of the vector components changes:
Parameters
- X float, optional value along X axis. Default to 0.
- Y float, optional value along Y axis. Default to 0.
Properties
-
x (float): v7.0
Value along X axis.
-
y (float): v7.0
Value along Y axis.
Methods
-
add(vector): v7.0
Adds a vector to this vector.
- vector Vec2 class object vector to add
returns: this vector after addition.
-
addScalar(scalar): v7.0
Adds a scalar to this vector.
- scalar float number to add
returns: this vector after addition.
-
clone(): v7.0
Clone this vector.
returns: new cloned vector.
-
copy(vector): v7.0
Copy a vector into this vector.
- vector Vec2 class object vector to copy
returns: this vector after copy.
-
dot(vector): v7.0
Calculates the dot product of 2 vectors.
- vector Vec2 class object vector to use for dot product
returns: a float representing the dot product of the 2 vectors.
-
equals(vector): v7.0
Checks if 2 vectors are equal.
- vector Vec2 class object vector to compare
returns: true if the 2 vectors are equals, false otherwise.
-
max(vector): v7.0
Apply max values to this vector.
- vector Vec2 class object vector representing max values
returns: vector with max values applied.
-
min(vector): v7.0
Apply min values to this vector.
- vector Vec2 class object vector representing min values
returns: vector with min values applied.
-
multiply(vector): v7.1
Multiplies a vector with this vector.
- vector Vec2 class object vector to use for multiplication
returns: this vector after multiplication.
-
multiplyScalar(scalar): v7.1
Multiplies a scalar with this vector.
- scalar float number to use for multiplication
returns: this vector after multiplication.
-
normalize(): v7.0
Normalize this vector.
returns: normalized vector.
-
sanitizeNaNValuesWith(vector): v7.0
Merges this vector with a vector when values are NaN. Mostly used internally to avoid errors.
- vector Vec2 class object vector to use for sanitization (i.e. set this vector value if original vector value is NaN).
returns: sanitized vector.
-
set(x, y): v7.0
Sets the vector from values.
- x float X component of our vector.
- y float Y component of our vector.
returns: this vector after being set.
-
sub(vector): v7.0
Subtracts a vector from this vector.
- vector Vec2 class object vector to use for subtraction.
returns: this vector after subtraction.
-
subScalar(scalar): v7.0
Subtracts a scalar to this vector.
- scalar float number to use for subtraction.
returns: this vector after subtraction.
Events
-
onChange(callback): v8.0
Execute a function each time the x or y component of the vector changed.
- callback function function to execute.
returns: your Vec2 object, allowing it to be chainable.


Web Crypto API
encryption control
handshake
reset
content-type: text/plain
Request:
Response:
Thomas shall pass
Ecrypted to:
echo
Decrypted from:
source code


LoopScript is a text format which allows you to describe sounds, and then usem in interesting loop patterns to make beats or melodies. You can then combine those loops into longer tracks to create songs. Any sound or pattern you create can be individually played or exported as a sound file. Sounds are created using a simple declarative format. A 1.5 second C note might look like this in LoopScript:
EXAMPLE 1.5 second C note: tone introsound duration 1500 note C ENDThis defines a new sound named "introsound". This sound can be referenced by name in other places in the LoopScript to be used as a source for loop patterns or other sound manipulation. When playing around on the website (such as the Playground) or if not specified on the commandline, LoopScript will always just generate the last thing declared. The commandline version lets you specify a sound by name to generate if you just want to test the output of a sound without having to listen to the entire thing every time. The rest of this page can be read/skimmed in order to see all of the features of LoopScript, or used as a reference via the table of contents above.
LoopScript is pretty light on punctuation, and relies on line breaks an indents for most of its formatting. As in other formats/languages where indentation is significant, you can choose how much you want to indent each section provided that you are consistent (always use 2 space indents or a single tab indent, etc). Most sounds are a type (such as "tone") followed by your name for it, followed by some indented lines which define its settings. Names cannot contain spaces, but are otherwise pretty loose. Keeping the names simple and terse is best as you'll be referencing them later in your LoopScripts. Any setting you choose can be used outside of a sound declaration to change the default. For example, the bpm setting ("beats per minute") is only meaningful to a loop definition, but you can set it at top of your LoopScript to set the default bpm for any upcoming loops. You can also change it later in a global place and it'll only affect loops that haven't been declared yet. This works for any setting. Comments are made with the hash mark ("#"), and continue to the end of the line. An arrow pointing to the right ("->") can be used an alternative to an indent, and a semicolon and break up multiple settings on the same line. (experimental)
EXAMPLE Basic LoopScript format: tone note1 # Defines a new tone named "note1" duration 250 # Length of tone, in milliseconds octave 4 # Sets the octave for the note (0-8) note C # A-G are regular notes, H-L are the "black keys" tone bass1 # This begins a new tone (note the reset indentation) duration 250 # New indent begins here octave 1 note B loop loop1 # Loop declaration pattern note1 x.......x....... # Uses note1 pattern bass1 ....x.......x... # Uses bass1 ENDA tone is a description of a single waveform:
EXAMPLE A tone that uses all defaults: tone example1 ENDTones have the following settings:
Here is an example of a more complicated tone:
EXAMPLE So complicated!: tone echosound wave sine duration 800 octave 4 note G adsr 0.005 0.05 0.7 0.05 reverb 250 0.5 ENDSamples are external sound effects, read in from WAV files. Currently, LoopScript only supports 16 bit, 44.1KHz, mono WAV files.
EXAMPLE Basic sample: sample clap src samples/clap.wav ENDSamples support the following settings:
Loops are mixes of sounds in timed patterns. A loop requires at least one pattern which has the sound it will be repeating and a string of letters which represent the pattern itself. An example:
EXAMPLE 120 BPM sample clap src samples/clap.wav loop loop1 pattern clap x...x...x...x... ENDPattern strings must always be a multiple of 16 characters, but has no limit to its length (within reason). Loops support the following settings:
--Soon--
--Soon--
--Soon--
--Soon--


| #. | Shipment Name | No Of Panels | Courier | Days Left | Round ID | Created By | Prepared On | Prepared By | Ship't Status | |
|---|---|---|---|---|---|---|---|---|---|---|
| {{$index+1}} | {{shipment.shipmentName}} | {{shipment.totalPanelsAdded}} | {{shipment.dispatchCourier}} | {{shipment.daysLeft}} | {{shipment.roundCode}} | {{shipment.createdBy}} | {{shipment.datePrepared}} | {{shipment.preparedBy}} | {{samples.returnShipmentStatus(shipment.deliveryStatus)}} |


[Exchange Seal Stones]
You may exchange any seal stones that you do not wish to pledge for the next competition for ancient adena.
Which type of seal stone would you like to exchange?
Exchange blue seal stones.
Exchange green seal stones.
Exchange red seal stones.


YAZHEN
INTERACTIVE2
Project1
project2
project3
Presentation
Mouse Event
50 Result Charrette
Final:Piano keyboard
CSS Typeface
Final:Origami serif
Exhibiton Microsite
404 Page:
Pop Art
&
Jim Campbell
Final: Exploded View
Rafaël Rozendaal


Why
Testing and Automation devroom is coming again to FOSDEM. This room is about building better software through a focus on testing and automation at all layers of the stack. From creating libraries and end-user applications all the way down to packaging, distribution and deployment. Testing and automation is not isolated to a single toolchain, language or platform, there is much to learn and share regardless of background!
What
Since Testing and Automation devroom has been a regular at FOSDEM, here are some ideas of what we would like to see, and what worked in prior years, they're just ideas though. Check out the Archive for inspiration.
Testing in the real, open source world
- War stories/strategies for testing large scale or complex projects
- Demistyfy resource e.g. systems/device/cloud provisioning in a CI loop
- Tools that extend the ability to test low-level code, e.g. bootloaders, init systems, etc.
- Projects that are introducing new/interesting ways of testing "systems"
- Address the automated testing frameworks fragmentation
- Lessons learned from testing
Cool Tools (good candidates for lightning talks)
- How your open source tool made developing quality software better
- What tools do you use to setup your CI/CD
- Combining projects/plugins/tools to build amazing things "Not enough people in the open source community know how to use $X, but here's a tutorial on how to use $X to make your project better."
Where
FOSDEM 2023 will be hosted in person at ULB Solbosch Campus, Brussels, Belgium.
When
- CFP Submission Deadline: 23:59 UTC, 11 December 2022
- Schedule Announced: 15 December 2022
- Presentations: 5th February 2023
How
- The reference time will be Brussels local time (CET)
- Talks will be delivered live, no pre-recorded talks
- Q/A session will be live
- Talks will be streamed
Please submit one (or more) 30-40 minute talk proposal(s) OR one (or more) 10 minute lightning talk proposal(s) by 23:59 UTC on December 11th 2022. We will notify all those submitting proposals about their acceptance by December 15th 2022.
To submit a talk proposal (you can submit multiple proposals if you'd like)
use Pentabarf,
the FOSDEM paper submission system. Be sure to select Testing and
Automation
otherwise we won't see it!
You can create an account, or use an existing account if you already have one.
Please note: FOSDEM is a FLOSS community event, by and for the community, please ensure your topic is appropriate (i.e. this isn't the right forum for commercial product presentations)
Who
- A. Todorov - Kiwi TCMS, QA & project lead
- Z. Stojnev - Kiwi TCMS, Test Engineer
- A. Roxell - Linaro, QA and Kernel Engineer
- C. Hrubis - SUSE


| Code Version | Config Version | Upgrade Mode | Upgrade State |
|---|---|---|---|
| {{clusterUpgradeProgress.raw.CodeVersion}} | {{clusterUpgradeProgress.raw.ConfigVersion}} | {{clusterUpgradeProgress.raw.UpgradeState}} | {{clusterUpgradeProgress.raw.RollingUpgradeMode}} |
| Start Timestamp Utc | Upgrade Duration | Upgrade Domain Duratiaon | |
| {{clusterUpgradeProgress.upgradeDuration}} | {{clusterUpgradeProgress.upgradeDomainDuration}} |
| Failure Timestamp UTC | {{clusterUpgradeProgress.failureTimestampUtc}} |
|---|---|
| Failure Reason | {{clusterUpgradeProgress.raw.FailureReason}} |


Tutorial 15
Welcome to the fifteenth tutorial in the InterMine python tutorial series! This tutorial will help you utilise the module to get details about the data model of various mines. These are additional examples, besides the ones covered here - http://intermine.org/intermine-ws-python/intermine.html#module-intermine.model. Each class (data type) has information containing references to other objects in the data model, collections of references or attribute details.
Let's begin by showing all the fields a data type contains (including all Attributes, References and Collections listed alphabetically). Each class can have any number of attributes (which store primitive data, like numbers, dates, and strings), references to other objects in the database, and collections of other objects in the database.
Here we see the datatype is Gene with the method get_class.
Then we can see all fields in the gene data type.
Suppose you have a class name, and want to know the details about a particular field it contains, then you can do the following:
Here we only get the gene field from the Protein class.
Note that if you enter a field name that does not belong to the class, then you will receive an error.
Now, suppose you want to find out the nature of the data you retrieved earlier (i.e. whether it is an ‘Attribute’ or ‘Collection’/‘Reference’), you can easily iterate over the fields we had obtained earlier:
Here, we classify field types as either REFERENCE or ATTRIBUTE and print their names.
Notice that we used make_path() in the process. This function helps us construct paths and inspect whether it is valid or not, or as in here, utilise it to get more information from the model.
Now let's look at what information we can get regarding ‘inheritance’ of class’.
The isa function helps us determine whether ‘input’ belongs to the ancestry(is a parent class or one of the parents of the parent class or so on) of a given class.
So here we know Allele is not an ancestor of Protein.
Now let's see how we can retrieve the ancestry of a particular class:
The to_ancestry method returns the ancestry of the given class.
We can print them here.
This tutorial thus explained how to get information regarding a class such as its attributes and the inheritance it shares without having to retrieve the entire model!
Thanks for watching!


A consultation and a preparatory questionaire
+ A mood board
+ Choice and combinaition of color palette
+ Logo proposals
+ Validation of proposal + touch-ups*
+ 1 favicon for your website
+ A band board
+ A file delivery (jpg, png, pdf, eps)
* 2 waves of modification inclueded
+ Telephone consultation
+ Project questionaire
+ 5 pages
+ coming soon page (if needed)
+ Legal notice page
+ Webdesign/site mock-up
+ Creation of site icons (up to 6)
+ Site installation + domain name wordpress
+ Site integration and development
+ Integration and content
+ Optimization of the site in responsive design
+ Test + corrections
Flyer
Brochure
Business card
Header paper
Enveloppe
Thank you card
Greeting card
Invitation card
Illustration


Hi There!
Welcome to Constellational
Constellational is an app that lets you post notes online
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Warning! Disclaimer from FDA
openFDA is a beta research project and not for clinical use. While we make every effort to ensure that data is accurate, you should assume all results are unvalidated.
openFDA is a beta research project and not for clinical use. While we make every effort to ensure that data is accurate, you should assume all results are unvalidated.


Explore a cartographic narrative of Wisconsin's complicated journey into mining regulation. Mining Regulation in Four Moods considers partisanship in the Wisconsin State Legislature, asking if Republicans and Democrats have always held polarized opinions on the issue of the environmental regulation of mining. This slideshow explores this issue by establishing four major periods of legislative action, and declaring a "legislative mood" for each period. Those moods, emerging from the political context of mining in each era, are given context through a text-based narrative, and are displayed graphically through four different styles, each invoking the emotional state of Wisconsin's Legislature for its period.


Welcome to Quick Glance! Where newspaper articles are in a convenient format to scan through headlines easily instead of the standard newspaper format.


Measurements are rounded to the nearest 8mm's.


Planet Sick-Boy: http://www.sick-boy.com "We Put the SIN in Cinema"
© Copyright 2001 Planet Sick-Boy. All Rights Reserved.
Poorly written, badly acted, completely stupid, but never once boring, The Fast and the Furious has accomplished more entertainment-wise than Driven or Gone in 60 Seconds could ever fathom (and it did so with considerably less money and virtually no star power). Any film about a gaggle of car-racing buffoons immediately starts out in the hole as far as I'm concerned, but with the popularity of the NASCAR thing, it's likely we'll get more racing pictures shoved down our throats for a few more years (until the inbreeding wipes the fans out). But if they're all as fun as Furious, I say bring 'em on.
Furious is set in and around the street-racing district of Los Angeles and begins with a nicely staged truck heist, in which three cars and a harpoon gun are able to procure a ton of stereo and television equipment from an 18-wheeler. The truck-jackings are happening with increasing regularity, which catches the eye of local police and the FBI, who send a dreamy, blond-haired, blue-eyed boy undercover into the world of muscle cars and monkey wrenches.
The cop is Brian Spindler (Paul Walker, The Skulls), and although we don't know he's a cop at first, anyone with minimal brain activity will be able to figure it out. Brian decides to infiltrate the inner circle of LA's racing kingpin - one Dominic Toretto (Vin Diesel, Pitch Black) - by sniffing around the convenience store he runs with his younger sister, Mia (Jordana Brewster, The Faculty), who seems to be receiving the majority of Brian's sniffing. To show how painfully un-street Brian is, the script has him order a tuna sandwich on white bread, with the crusts cut off, no less. He also lands a job at a high-end auto parts store in the racing district.
After a testosterone-bathed scene that depicts him earning his street cred and the respect of Dominic, Brian is accepted into the in-crowd, which includes, but is not limited to, characters played by October Sky's Chad Lindberg, Get Carter's Johnny Strong and Girlfight's Michelle Rodriguez, the latter of whom could probably kick the crap out of any of Furious' men. The scene also features a shot of Diesel running down the street at the speed of a glacier. Brian provides reports back to his boss (Silence of the Lambs' dick-tucker Ted Levine) and an FBI suit (Thom Barry), neither of whom are happy with the progress of the case. But none of it seems to stop Brian from flashing those blue eyes and pearly whites.
But the plot barely matters here. It's all about the cars and the driving scenes. Heck, even the girls (even the unattractive ones, like Brewster) have spoilers of their own. Laugh, if you must, at the gearheads inconspicuously traveling everywhere in packs of juiced cars. It looks cool, so it doesn't have to make sense. Come to think of it, I think that's how we ended up with our President.
Diesel, who is a horrible actor but has somehow managed to land in three underachieving films with decent buzz (like Boiler Room), logs in his career-best at overacting (and that's quite an achievement). Walker is eye candy, and it looks like he could have been one of the sons on Home Improvement, or maybe in one of the incarnations of Saved By the Bell, or, at minimum, Mark-Paul Gosselaar's inevitable replacement on NYPD Blue for the 2002/2003 season. Snow Falling on Cedars' Rick Yune plays The Bad Asian Guy, and MTV tough-guy Ja Rule makes an appearance, too. Yay!
Furious contains some of the worst dialogue ever written, and I'm saying this less than two months after seeing Driven. The highlight is Dominic's elegant soliloquy, in which he bravely utters the line, "I live my life a quarter-mile at a time." Straight up, D? That little gem, and all the others, come courtesy of Gary Scott Thompson (Hollow Man), David Ayer (U-571) and newcomer Erik Bergquist. Furious was directed by Rob Cohen, who recently directed Walker in The Skulls.
1:45 - PG-13 for violence, sexual content and language
The review above was posted to the
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Broken URLs inthe reviews are the responsibility of the author.
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Related links: index of all rec.arts.movies.reviews reviews


The Text Mangler is a desktop application, written in Java, that allows a user to perform operations on rows of data. You specify the input data and a pattern, and the program applies the pattern to each row of input data in order to generate the output.
Each row of input data is composed of a set of fields, typically separated by a comma. For example, if the input data is:
Bill,Cindy,David Sue,Cathy,Jimand the pattern is:
$1 and $2 know $3then the output is:
Bill and Cindy know David Sue and Cathy know Jim
There is a special variable that refers to the current line number from the input data. The variable is $Row. By default, its initial value and increment value are both 1, although that can be modified (see below).
The application supports functions for field references (such as $1). These functions are $upper(), $lower() and $title(). These functions will change the case of their argument to, respectively, uppercase, lowercase and titlecase (only the first letter of each word is made uppercase). An example is $upper($1).
You can include comments in the pattern. Comments are not processed by the application, and not included in the output. To mark a line as a comment, start the line with $//.
Conditionals are also supported. The supported statements are $if, $elseif, $else and $endif. The conditional statement can either be of the format "$Row [op] [#]" or "[string] [op] [string]". Either string can be either a literal, such as "Sam", or a field reference, such as $1. The supported operators are listed below. The supported operators for string comparisons and numeric comparisons are identical. The $if and $elseif statements require a condition argument, such as "$if $Row = 5" or "$elseif $1="Bob"". An if-block can include as many $elseif statements as you like.
The supported conditional operators are:
| Operator(s) | Function |
|---|---|
| =, == | Equal |
| !=, <> | Not equal |
| < | Less than |
| <= | Less than or equal |
| > | Greater than |
| >= | Greater than or equal |
To see a demonstration of all of the above, change the pattern in the drop-down listbox to "Demo".
The Options tab has several configuration options available to the user:
The drop-down listbox of pattern choices can be modified by editing the mangler.ini file. To add a pattern, add a section with the pattern name you want to appear in the drop-down listbox. In that section, add the line "Lines=[#]", with Lines set to the number of pattern lines in the section. Then, add the pattern lines to the section, with each line of the format "Line[#]=[string]". So, if the pattern is five lines, the first line would be "Lines=5", followed by five lines, starting with "Line1=[string]", "Line2=[string]", "Line3=[string]", "Line4=[string]" and "Line5=[string]", where [string] would be the pattern string for each line. For examples, see the mangler.ini file.
Part of the code is copyright JGoodies Karsten Lentzsch.


--- layout: post title: Another cloudy day date: 2009-12-13 19:38:34.000000000 -08:00 type: post published: true status: publish categories: [] tags: [] meta: {} author: ---
Sent via iPidgeon


UN envoy: First Syria talks in over a year better than expected
Syria government and opposition representatives met to discuss a future constitution in Geneva but did not shake hands.
The United Nation's envoy for Syria says first talks in Geneva on the country's constitution involving Syrian opposition, government and civil society representatives have "gone much better" than many would have expected.
Geir Pedersen said on Friday that the two co-chairs of the constitutional committee from President Bashar al-Assad's government and the leading opposition have agreed to meet again on November 25, and that delegations would in coming weeks "hopefully come up with a work plan".
More:
Representatives of both sides met to discuss a future constitution, part of plans for a political settlement to end eight and a half years of war.
Expectations for the talks have been low, with Damascus and its Iranian and Russian allies having made gains on the battlefield that left them few reasons to grant concessions.
Acknowledging that discussions were sometimes difficult, UN envoy Geir Pedersen said delegates from the government, opposition and civil society had behaved with professionalism.
"These are sometimes very painful discussions and it takes courage to listen to the other side defending its views on these issues," he told journalists in Geneva.
"I believe it has gone much better than most people would have expected," he said.
The government delegation had been seeking to hold the next round of talks in Syria's capital, which the opposition had strongly resisted.
The talks are focused on drawing up a constitution with a view to eventually holding elections in Syria, a less sweeping agenda than at UN-sponsored talks earlier in the war, which collapsed over rebel demands that al-Assad leave power.
Rebel fighters who once aimed to overthrow al-Assad now hold only a small pocket of northwestern Syria and have been driven out of all its major population centres.
'Not very easy'
The talks kicked off last week with a ceremony and plenary session involving 150 delegates - split evenly between Syria's government, the opposition and Syrian civil society.
After 10 days of talks, there was no immediate agreement on the release of thousands of detainees, an issue that Pedersen has underscored as key to building confidence.
Nor was there consensus on whether delegates from the so-called "small group" in charge of drafting the constitution would adapt a 2012 constitution or start afresh with a new one.
Damascus has indicated it is merely willing to tweak the existing constitution, but Ahmed Kuzbari, the meeting co-chair representing the government-backed delegation, told reporters both scenarios were possible.
"We could draft a new constitution as long as it meets all of the objectives of the Syrian state," he said, insisting on respect for Syrian sovereignty.
"We did not come to build a new state. The Syrian Arab Republic is a state: it has a constitution, a parliament, a government, an army and institutions," Kuzbari added.
Talks between the parties were often heated, delegates said, particularly on the issue of "terrorism", a term used by the government side to refer to rebels, with the government body seeking to incorporate this within the constitutional reform project. The opposition side resisted this.
"Discussions were not very easy," the opposition co-chair Hadi al-Bahra said, noting that he had yet to shake hands with his counterpart.
"We all had to be reasonable and go beyond the differences and to focus on the parts that unify Syrians."


Images in this application is "Designed by Freepik".
Corona Virus LottieFiles in this application is from LottieFiles.


In Kashmir, Indian Army diffuses IED planted by terrorists on NH-11
The Army said if IED would have been initiated, it would have caused immense loss of precious lives and extensive damage to property.
by ANIAnantnag: Army Bomb Disposal team on Friday diffused an Improvised Explosive Device (IED) containing 25 kg of high explosive on the National Highway-11 near Khudwani Bridge in Anantnag district.
"In a desperate attempt to inflict civilian casualties and terrorise the populace, terrorists planted an Improvised Explosive Device (IED) containing 25 Kg of High Explosive on the NH-11 near Khudwani Bridge," the Army said in a statement.
The IED was detected by vigilant troops during the road clearance of NH undertaken on Thursday morning.
Following which, the site was cordoned off and Army Bomb Disposal teams were rushed to the location.
Despite the risk, the Bomb Disposal teams dug out the embedded IED comprising of two cylindrical containers of 15 and 10 kg each filled with explosives and destroyed it in situ.
The Army said if IED would have been initiated, it would have caused immense loss of precious lives and extensive damage to property, in addition to disrupting flow of traffic and creating panic in people.
"Such barbaric acts are an attempt to deter the situation from returning to normal," it said.
Catch the latest news, live coverage and in-depth analyses from India and World. Follow us on Facebook and Twitter.


250 Bengaluru houses flooded after lake breach; cars, bikes swept away
The Bruhat Bengaluru Mahanagara Palike (BBPM) officials the fire and emergency services personnel were carrying out the relief work.
by PTIBengaluru: A large number of houses were flooded in Bengaluru's Hulimavu as water from a lake flooded the area on Sunday after its embankment was damaged, officials said.
Efforts are on to shift around 250 families affected by the sudden flood which also swept away several cars and two-wheelers, they said.
City Mayor M Gautham Kumar said the incident occurred when some people allegedly tried to lay a pipe with the help of an earthmover and the civic body BBMP would investigate about it.
About 250 families had been affected and efforts were on to shift them to safety and provide food, he said. The Bruhat Bengaluru Mahanagara Palike (BBPM) officials the fire and emergency services personnel were carrying out the relief work.
Pumps were deployed to flush the water out of basements of residential complexes, while efforts were on by engineers in the civic body to plug the breach, officials said.
Catch the latest news, live coverage and in-depth analyses from India and World. Follow us on Facebook and Twitter.


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Machine Learning, NLP
Capturing semantic structures in Neural Machine Translation
Aviral KumarSiddhant Garg
Stipend: INR 3000
This project is aimed towards people who are interested in ML and Neuro-Linguistic Programming; and handles Neural Machine Translation with an unusual approach
Neural Networks are being extensively used for machine translation. While tools like Google Translate might look so practically effective in translation, the accuracy (BLEU scores) of such models on test benchmarks is just in the range of 28-40%! From our initial experiments with such models, we can say that these networks essentially learn to output translations all of which carry the same semantic structure – a different way of referring to the same thing or paraphrasing. There has been some previous work in the domain of learning to align to fixed semantic structure or learning to handle paraphrasing during NMT. We have a simple approach in mind, which we want to try out.
We stick to the standard Encoder-Decoder architecture for Neural Machine Translation(NMT). To give a brief overview, a recurrent neural network (Encoder) takes the input sequence and converts it to an intermediate hidden representation on which another recurrent neural network (Decoder) operates and produces the output sequence. The standard NMT architecture involves a single encoder and decoder mechanism. Here, essentially, we want to have multiple decoders, each of which can capture a different semantic structure of the sequence. Training these multiple decoders will involve not only maximising the likelihood for prediction for each but also producing diverse outputs among themselves. If successfully learned, this model can learn to produce translations which are different ways of saying the same thing.
The motivation for this idea comes from an analogy to generative models like GANs. Often GANs suffer from mode collapse, that is they fail to capture different modes in the space of images, and rotate among different modes. Having a ‘n-way’ mixture (which essentially is implemented by multiple decoders), we can prevent such a problem from arising.
Some (initial) relevant papers:
- Adversarial Example Generation with Syntactically Controlled Paraphrase Networks https://arxiv.org/pdf/1804.06059.pdf
- Diverse Beam Search https://arxiv.org/abs/1610.02424
- Breaking softmax bottleneck (might be interesting to see if their solution captures semantic structures too) https://arxiv.org/abs/1711.03953
Base Code: Tensorflow Official NMT repository https://github.com/tensorflow/nmt
Why should one choose this project?
This project is more on the lines of exploration so active participation is needed from your side not only for the coding part but also for formulating the problem and thus you will have the freedom to test and implement your own ideas as well. This will be an excellent way to venture into the field of Machine Learning (Deep Learning in specific) and can act as a solid starting point for you to pursue more projects/research in DL. This project will also involve active reading of research papers and hence can be a very hands on research experience for you.
Who should choose this project?
A prerequisite for choosing this project is having a basic knowledge of Neural Networks and concepts of Machine Learning (Though this can also be learnt while doing the project if student is motivated and interested to learn). The student should be comfortable coding in Python and should have ability to learn to program in a new environment (Tensorflow). Any prior experience with Keras, Pytorch or Tensorflow is appreciated.
| Week | Work |
|---|---|
| Week 1 : | Reading Seq2Seq NMT paper and getting familiarized with the code by trying out some simple variations and trying to replicate benchmarks on some datasets |
| Week 2 onwards: | Implementing a multi-decoder module in the NMT code and modifying the loss for training by incorporating cross entropy on the predicted sequence and divergence between different decoder models |
| . | Testing initially on synthetic datasets for proof of concept and use this to tweak the model architecture, loss, etc to improve the prediction scores. If there are signs of the model being able to capture wider semantic structures, we can test the model on bigger datasets. |
Miscellaneous
This project might be resource intensive. Google Cloud or other Cloud platforms might be required to test full blown models, once the model seems to work on toy data.
If the idea works out and results are encouraging, this might lead to an academic research paper at an NLP/ML conference.


For more information or resume, contact me at<EMAIL_ADDRESS>About this WebsiteThe unquenchable passion for mathematics and interest in technology has driven me to pursue a career in electrical, electronic, and software engineering. As a final year student, I have but touched the tip of the iceberg of such a vast and diverse field with such boundless potential. This coupled with my unceasing desire to learn and apply my knowledge propels me to continue doing what I love.
In 2014, I graduated with a Bachelor of Science (Mechanical/Electrical Systems) after 2.5 years of study (overloaded for 4 semesters to catch up by half a year). Prior to that, I was studying my Cambridge A-Levels in Taylor’s College.
Currently, I am the Vice President of the Melbourne University Electrical Engineering Club (MUEEC). Previously, I held the position of Secretary of the International Engineering Student Society (IESS), also affiliated with the University of Melbourne.
My interests are in programming, mathematics, reading, gaming, and exercising. I code and script in C, Java, Matlab, Bash, and Perl. I greatly enjoy teaching others as I find it thrilling to impart my experiences and bring people to a better understanding of a topic.
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High-frequency trading describes trading that require high computing and communication speeds.
HFT is characterized by high communication and computing speed, large number of trades, low profit per trade and expensive software infrastructure.
High-frequency traders use communication speed to profit and outwit other traders.
Arbitrage
Arbitrage trades happen when an asset is priced differently on 2 exchanges and a trader buys the cheaper one while shorting the pricier one.
Reaction to news
When a major news is released, the trader who reacts the fastest wins. In this case, the high-frequency trader needs to analyse the news and fire the trade before everyone else
Reaction to news
When a major news is released, the trader who reacts the fastest wins. In this case, the high-frequency trader needs to analyse the news and fire the trade before everyone else
Latency Arbitrage
When a traditional (slower) hedge fund buys a large amount of Stock A, a HFT hedge fund will detect that.
The HFT hedge fund will then buy all the Stock A on the other exchanges and sell it back to the slower hedge fund for a small profit.
The HFT hedge fund might do this millions of times over a day.
Statistical Arbitrage
A large number of similar stocks might move in a similar manner. When any of the stocks diverge, the high-frequency trader will buy the cheaper one and/or short the pricier one.
Index Arbitrage
An index or exchange-traded fund is designed to track the returns of an index such as the S&P500.
Other strategies
HFT is a secretive field. Once a strategy is revealed and the other funds join in, the profit opportunity disappears fast.
Thus, many new innovative strategies are created every day and are not known to the general public.
Investment in infrastructure
HFT is usually a winner-take-all industry. If you are faster than your competition (even by a slight amount), you get all the profits.
Since relative speed is more important than absolute speed, HFT funds constantly try to be faster than their rivals.
HFT funds spend hundreds of millions on hardware and software infrastructure to reduce their computing and communication speed by the milliseconds.
Investments in infrastructure include building a straight tunnel to lay communication lines and putting their servers right beside the financial exchange’s servers.
Here's a basic structure of the upcoming parts:
Pairs-Trading & How It Works
Skip to Finding Good Pairs
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Geolocation and Offline Prototype App
Watch Location
Stop Location
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