How to Build a Popularity Algorithm You can be Proud of - DonationCoder.com
HOME | Blog | Software | Reviews and Features | Forum | Help | Donate
Welcome Guest. April 02, 2015, 04:48:24 AM

Or did you miss your validation email?

Why not become a lifetime supporting member of the site with a one-time donation of any amount? Your donation entitles you to a ton of additional benefits, including access to exclusive discounts and downloads, the ability to enter monthly free software drawings, and a single non-expiring license key for all of our programs.

 You must sign up here before you can post and access some areas of the site. Registration is totally free and confidential.
 Read the full one-year retrospective report on DonationCoder.com. Entire Forum This board This topic Members Help Desk Entire Site
Pages: [1]   Go Down
 Reply  |  New Topic  |  Print
 Author Topic: How to Build a Popularity Algorithm You can be Proud of  (Read 2768 times)
mouser
First Author

Posts: 34,332

 « on: September 08, 2009, 11:00:36 PM »

Neat article on designing voting/ranking algorithms:

Quote
Many web sites allow users to casts vote on items. These visitors' votes are then often used to detect the items' "popularity" and hence rank the rated items accordingly.

And when "rank" comes into play things gets tricky:
• The system can have inherent deficiencies in ranking items.
• That is mostly because developers tend to "re-invent the wheel" and throw in their own algorithms instead of basing their calculations on well-established statistical formulae
• (I'll come to that in a moment, just bear with me ).
• There will be people (i.e. spammers) trying to fool the system and try to take their submissions to top.
• There will be system inefficiencies due to computational complexity.

In this article,  I'll try to give examples on how to approach the problem; describe the weakness of each particular approach; and explain how some well-known social community sites implement their ranking algorithms..

 Logged
Pages: [1]   Go Up
 Reply  |  New Topic  |  Print

[ Page time: 0.025s | Server load: 0.02 ]

 Translate Arabic Bulgarian Catalan Chinese Croatian Czech Danish Dutch Filipino Finnish French German Greek Hebrew Hindi Indonesian Italian Japanese Korean Latvian Lithuanian Norwegian Polish Portuguese Romanian Russian Serbian Slovak Slovenian Spanish Swedish Ukrainian Vietnamese