MyMediaLite is a lightweight, multi-purpose library of recommender system algorithms. It addresses the two most common scenarios in collaborative filtering: rating prediction (e.g. on a scale of 1 to 5 stars) and item prediction from implicit feedback (e.g. from clicks or purchase actions). It is free/open source software, distributed under the terms of the GNU General Public License.

The MyMedia toolkit is an extensible software framework for multimedia recommendation, incorporating cutting edge recommender algorithms and metadata enrichment. This C# developed research project makes it easier to study, develop and deploy personalization technology.