Ya Ge grapeot

## gist:3209996
# Install git
cd $HOME
sudo yum -y update
sudo yum -y install git

# Prepare the public key, which will be used later
cp ~/.ssh/authorized_keys /tmp/Default.pub
chmod a+r /tmp/Default.pub

# Use the user git to install gitolite from source.

## cmuBlackboardAutoLogin.py
import requests
import re

# Initial request for blackboard
r = requests.get('http://blackboard.andrew.cmu.edu/')
# Authenticaton
payload = { 'j_username' : '<your username>', 'j_password' : '<your password>', 'j_continue' : '1', 'submit' : 'Login' }
r2 = requests.post(r.url, data=payload, cookies=r.cookies)
# Manually proceed with the form
url = 'https://blackboard.andrew.cmu.edu/Shibboleth.sso/SAML2/POST'

## install_gitlab
Basically just Follow the install instructions in https://github.com/gitlabhq/gitlabhq/blob/stable/doc/installation.md.

If you encounter problems, check this:

1. If the system complains about pid files in the very last step, change 'restart' to 'start'.
If it doesn't work, use 'sudo ./resque.sh' in Step 6.

2. I encountered 502 Bad Gateway error. Solution is in https://groups.google.com/forum/?fromgroups#!topic/gitlabhq/u9AMESyd-N0
Restart the server after the modification.

## lsh.m
% Inuitive example for LSH with toy data
dimension = 30;
sampleNum = 1000;
hashBitCount = 16;
x = rand(sampleNum, dimension); % data points to hash
w = rand(dimension, hashBitCount); % w vector in hash function
w = w ./ repmat(sqrt(diag(w' * w)'), dimension, 1); % normalization
projection = x * w; % Do the projection
t = median(projection); % empirically provides good result
hashCode = sign(x * w - repmat(t, sampleNum, 1)); % replace x with test data in test phase

## hashTableDemo.m
function demo
% This is a toy example of implementig a hash table in matlab
    hashBits = 20;

    function h = hash(s)
        % A toy hash function for vectors/strings
        % Note this function accepts a matrix as input thus is fast in matlab
        h = mod(sum(s, 2), 2^hashBits) + 1; % Note this produces a 16-bit hash code.
        % Plus one to prevent outputting 0 as hash code, which will cause
        % problems in the following code.

## semaphore.cs
            var semaphor = new Semaphore(50, 50);  // We allow at most 50 threads for crawling
            var resultPins = new List<Pin>();  // Results stored here
            foreach (var pin in new HashSet<string>(pinIdList))
            {
                semaphor.WaitOne();
                Console.Write(">");
                var pinClient = new WebClient();
                pinClient.DownloadStringCompleted += (sender, ex) =>
                {
                    var html = ex.Result.Replace("\n", "");

## reHtml.py
# Not sure why this example doesn't work, but the framework is like this.
# Welcome to point out the bug. Thanks in advance!

import re

content = '<html><p class="name">John</p><p class="profile">http://facebook.com/john</p></html>'
# More info about re in http://docs.python.org/library/re.html
name_result = re.match('class="name">(\w+)<', content).group(1)
profile_result = re.match('class="profile">(.+)<', content).group(1)

## vimrc
" regular settings
syntax on
set si ai nu et
set shiftwidth=4
set tabstop=4
set bs=2
colorscheme wombat

set autochdir autoread autowrite
set incsearch ignorecase smartcase

## amp_test.cpp
#include <amp.h>
#include <iostream>
#include <ctime>
#include <cstdlib>
#define TS 16

using namespace std;
using namespace concurrency;

int main()

## xkcd.sh
num=$(curl -s xkcd.com | grep -oh -m 1 'v" href="/[0-9]*' | sed 's/v" href="\/'//)
n=$[ $RANDOM % $num ]
curl -s xkcd.com/$n/ | grep '<img.*comics' | mail -a 'Content-Type: text/html' -s 'xkcd daily pick' <email>
	# Install git
	cd $HOME
	sudo yum -y update
	sudo yum -y install git

	# Prepare the public key, which will be used later
	cp ~/.ssh/authorized_keys /tmp/Default.pub
	chmod a+r /tmp/Default.pub

	# Use the user git to install gitolite from source.
	import requests
	import re

	# Initial request for blackboard
	r = requests.get('http://blackboard.andrew.cmu.edu/')
	# Authenticaton
	payload = { 'j_username' : '<your username>', 'j_password' : '<your password>', 'j_continue' : '1', 'submit' : 'Login' }
	r2 = requests.post(r.url, data=payload, cookies=r.cookies)
	# Manually proceed with the form
	url = 'https://blackboard.andrew.cmu.edu/Shibboleth.sso/SAML2/POST'
	Basically just Follow the install instructions in https://github.com/gitlabhq/gitlabhq/blob/stable/doc/installation.md.

	If you encounter problems, check this:

	1. If the system complains about pid files in the very last step, change 'restart' to 'start'.
	If it doesn't work, use 'sudo ./resque.sh' in Step 6.

	2. I encountered 502 Bad Gateway error. Solution is in https://groups.google.com/forum/?fromgroups#!topic/gitlabhq/u9AMESyd-N0
	Restart the server after the modification.
	% Inuitive example for LSH with toy data
	dimension = 30;
	sampleNum = 1000;
	hashBitCount = 16;
	x = rand(sampleNum, dimension); % data points to hash
	w = rand(dimension, hashBitCount); % w vector in hash function
	w = w ./ repmat(sqrt(diag(w' * w)'), dimension, 1); % normalization
	projection = x * w; % Do the projection
	t = median(projection); % empirically provides good result
	hashCode = sign(x * w - repmat(t, sampleNum, 1)); % replace x with test data in test phase
	function demo
	% This is a toy example of implementig a hash table in matlab
	hashBits = 20;

	function h = hash(s)
	% A toy hash function for vectors/strings
	% Note this function accepts a matrix as input thus is fast in matlab
	h = mod(sum(s, 2), 2^hashBits) + 1; % Note this produces a 16-bit hash code.
	% Plus one to prevent outputting 0 as hash code, which will cause
	% problems in the following code.
	var semaphor = new Semaphore(50, 50); // We allow at most 50 threads for crawling
	var resultPins = new List<Pin>(); // Results stored here
	foreach (var pin in new HashSet<string>(pinIdList))
	{
	semaphor.WaitOne();
	Console.Write(">");
	var pinClient = new WebClient();
	pinClient.DownloadStringCompleted += (sender, ex) =>
	{
	var html = ex.Result.Replace("\n", "");
	# Not sure why this example doesn't work, but the framework is like this.
	# Welcome to point out the bug. Thanks in advance!

	import re

	content = '<html><p class="name">John</p><p class="profile">http://facebook.com/john</p></html>'
	# More info about re in http://docs.python.org/library/re.html
	name_result = re.match('class="name">(\w+)<', content).group(1)
	profile_result = re.match('class="profile">(.+)<', content).group(1)
	" regular settings
	syntax on
	set si ai nu et
	set shiftwidth=4
	set tabstop=4
	set bs=2
	colorscheme wombat

	set autochdir autoread autowrite
	set incsearch ignorecase smartcase
	#include <amp.h>
	#include <iostream>
	#include <ctime>
	#include <cstdlib>
	#define TS 16

	using namespace std;
	using namespace concurrency;

	int main()
	num=$(curl -s xkcd.com \| grep -oh -m 1 'v" href="/[0-9]*' \| sed 's/v" href="\/'//)
	n=$[ $RANDOM % $num ]
	curl -s xkcd.com/$n/ \| grep '<img.*comics' \| mail -a 'Content-Type: text/html' -s 'xkcd daily pick' <email>