[MAHOUT-737] Implicit Alternating Least Squares SVD

• Type: New Feature
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 0.6
• Fix Version/s: 0.7
• Assignee: Sebastian Schelter
• Reporter: Tamas Jambor
• Created: 20/Jun/11 07:52
• Updated: 31/Jan/24 22:11
• Resolved: 27/Apr/12 15:34

Description

I am sharing this Java implementation of mine that is based on the paper - Collaborative Filtering with Implicit Datasets. The implementation is multi-treading and can be easily extended to use it on Hadoop. In fact this approach would possibly work with non-implicit datasets, but further testing is needed. The algorithm is tried and tested on an implicit TV-viewing dataset, and the performance was pretty good (details to follow).