Google Summer of Code and Collaborative Filtering
Andre reports that the Taste Collaborative Filtering library was selected by the Google Summer of Code program. You can check out the various summer project ideas. Among those, you have multidimensional rating algorithms: for a reference, see my 2003 paper with Harold Boley and others.
Seems like Google likes collaborative filtering. Last year, the collaborative filtering algorithm Slope One was integrated in the Drupal project.
