Release notes for LensKit 0.5
IndexedPreference, making it an interface that can be backed by indirect implementations in rating snapshots. This seems to be faster. Also added
getIndex()method, returning a global index for the preference within a snapshot.
Adjusted the FunkSVD model builder to use global indices and an array of estimates, making model builds much faster.
Dropped by-user MAE from MAE evaluator and renamed “MAE.ByRating” in output to “MAE”, as per-user and global MAE are equivalent.
lenskit-coreso it is available for logging elapsed times in algorithm implementations.