Details
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New Feature
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Status: Closed
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Major
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Resolution: Fixed
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0.7
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None
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None
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