Provide references and a small comparison matrix

[FlorianWilhelm]

It's always good scientific practice to also give references to other freely available recommender systems and maybe a small matrix comparing their main features. This has several benefits:

1. It allows new user to get a fast overview of freely available alternatives
2. It provides an overview of the main differences to the alternatives
3. Showing that there are alternatives and that their main feature are known to the authors of LightFM increases their reputation and perceived expertise.

I think the main alternatives are Mahout, PyFM and LensKit. All of them seem to provide only Collaborative Filtering. Interesting features would be: scalability/runtime performance, language bindings, algorithms/methods.

I know that this issue could be quite work intense but it would be nice to have in order to convince people to use LightFM ;-)

[maciejkula]

That sounds like a great idea, I'd love to see contributions!

[SimonCW]

I’m closing this issue because it has been inactive for a long time. If you still encounter the problem please open a new issue.

Thank you!