tarunc

var distances = {
  euclidean: function(v1, v2) {
      var total = 0;
      for (var i = 0; i < v1.length; i++) {
         total += Math.pow(v2[i] - v1[i], 2);      
      }
      return Math.sqrt(total);
   },
   manhattan: function(v1, v2) {
     var total = 0;

chooper

"""Decorator to quickly add statsd (graphite) instrumentation to Celery
task functions.

With some slight modification, this could be used to instrument just
about any (non-celery) function and be made abstract enough to customize
metric names, etc.

Stats reported include number of times the task was accepted by a worker
(`started`), the number of successes, and the number of times the task
raised an exception. In addition, it also reports how long the task took

otobrglez

# This method finds related articles using Jaccard index (optimized for PostgreSQL).
# More info: http://en.wikipedia.org/wiki/Jaccard_index

class Article < ActiveRecord::Base

  def related(limit=10)
    Article.find_by_sql(%Q{
      SELECT
      	a.*,
      	( SELECT array_agg(t.name) FROM taggings tg, tags t

mislav

Pagination 101

Article by Faruk Ateş, [originally on KuraFire.net][original] which is currently down

One of the most commonly overlooked and under-refined elements of a website is its pagination controls. In many cases, these are treated as an afterthought. I rarely come across a website that has decent pagination, and it always makes me wonder why so few manage to get it right. After all, I'd say that pagination is pretty easy to get right. Alas, that doesn't seem the case, so after encouragement from Chris Messina on Flickr I decided to write my Pagination 101, hopefully it'll give you some clues as to what makes good pagination.

Before going into analyzing good and bad pagination, I want to explain just what I consider to be pagination: Pagination is any kind of control system that lets the user browse through pages of search results, archives, or any other kind of continued content. Search results are the o