It did not mean incremental SVD, it just means that refresh() can be called on an SVDRecommender and it will recompute its decomposition:
https://issues.apache.org/jira/browse/MAHOUT-640 --sebastian 2011/9/16 Lance Norskog <[email protected]>: > For the 0.5 release, these are mentioned: > > * Incremental SVD Implementation > * SVDRecommender enhancements > > This seems to be about adding a refreshable SVD-based recommender. > The Factorizers do not contain an incremental SVD implementation, like this: > > Fast Low-Rank Modifications of the Thin Singular Value Decomposition > http://www.merl.com/publications/TR2006-059/ > > Was this the intention? > > -- > Lance Norskog > [email protected] >
