[MAHOUT-1106] SVD++

• Type: New Feature
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 0.7
• Fix Version/s: 0.8
• Assignee: Sebastian Schelter
• Reporter: Zeno Gantner
• Created: 29/Oct/12 20:48
• Updated: 31/Jan/24 22:11
• Resolved: 29/Oct/12 21:06

Description

Initial shot at SVD++.
Relies on the RatingsSGDFactorizer class introduced in MAHOUT-1089.

One could also think about several enhancements, e.g. having separate regularization constants for user and item factors.

I am also the author of the SVDPlusPlus class in MyMediaLite, so if there are any similarities, no need to worry – I am okay with relicensing this to the Apache 2.0 license.
https://github.com/zenogantner/MyMediaLite/blob/master/src/MyMediaLite/RatingPrediction/SVDPlusPlus.cs