data
Item based collaborative filtering in PHP
Most people are familiar with recommendation systems on websites, wherein after you select an item you are presented with a list of similar items other people purchased . Amazon being the popular one and also one of the first to use it. Below is shown a snapshot from Amazon.
Collaborative filtering algorithms work by searching a […]
Time series visualization with Timeplot
Using lines, points and other geometrical objects to visualize data has always fascinated me; specially time series. Time series charts let you visualize data points separated by time intervals.
The following image shows an example of a time series data representing the salary of software engineers for a particular duration.
Faceted browsing for Mozilla Thunderbird
MIT’s Simile project has a new addition to their open source tools, ‘Seek‘. Seek adds a faceted browsing feature for Thunderbird, which lets you search through email or RSS feeds easily.
A faceted classification scheme allows one to assign multiple classes to an object rather then a single predefined taxonomic class. Facets are more commonly used […]
