Joe joskid

General

Tutorials on topics in machine learning

Hashing Searching Sketching.

Parallel Machine Learning

http://graphlab.org/

AdaBoost

How to embed HATEOAS/Link inside JSON

HTTP Headers

For HTTP headers it's quite straightforward: draft-nottingham-http-link-header defines this.

Link: <http://example.com/>; rel="previous"; titile="Previous chapter"

One-line Tree in Python

Using Python's built-in defaultdict we can easily define a tree data structure:

def tree(): return defaultdict(tree)

That's it!

How to stream the London 2012 Olympics

There have been several HOWTOs posted regarding streaming the 2012 Olympics using HTTP / SOCKS proxies via SSH and other similar methods. None of these actually work using the latest Flash on Mountain Lion (with Firefox, Chrome or Safari). Additionally, the third-party streaming sites don't provide BBC's amazing interface, which lets you quickly skip to individual competitors and events. However, setting up an OpenVPN server does work, with some tweaks. You'll get the exact same UX that people in England receive.

Get a Linode VM in the UK. The 512MB server for $20 works just fine. (If you want to use my referral link, go for it: http://bit.ly/OuzdVe)
Follow the standard OpenVPN installation documentation. (Basically, 'apt-get install openvpn' or 'yum install openvpn' and then follow these docs: http://openvpn.net/index.php/open-source/documentation/howto.html). For an OS X client, I prefer Viscosity: http://www.thesparklabs

Learn JavaScript concepts with the Chrome DevTools

Authored by Peter Rybin , Chrome DevTools team

In this short guide we'll review some new Chrome DevTools features for "function scope" and "internal properties" by exploring some base JavaScript language concepts.

Closures

Let's start with closures – one of the most famous things in JS. A closure is a function, that uses variables from outside. See an example:

	4 # number of states
	START
	COLD
	HOT
	END

	3 # size of vocab
	1
	2
	3

	"""
	A really stupid python template language inspired by coffeekup, markaby.
	Do not use this code, it will ruin your day. A byproduct of insomnia.

	TL;DR
	-----

	This module defines a template language that allows us to do:

	d = Doc()

	#! /usr/bin/python

	"""
	This simple script makes it easy to create server certificates
	that are signed by your own Certificate Authority.

	Mostly, this script just automates the workflow explained
	in http://www.tc.umn.edu/~brams006/selfsign.html.

	Before using this script, you'll need to create a private

	// Conway's Game of Life for HTML5 Canvas
	// By Simon Laroche

	var FPS = 5;
	var paused = true;
	var gLoop;
	var generations = 0;
	var population = 0;

	var start = document.getElementById('start');

	import sys
	import colorsys
	from colorz import colorz

	WALLPAPER = '/home/james/.wallpaper'
	COLORS = '/home/james/.colors'
	XRESOURCES = '/home/james/.Xresources'

	cols = ''
	xres = """