cgravier / RankLib

A Learning to Rank Library

RankLib

A Learning to Rank Library. Copied from: http://people.cs.umass.edu/~vdang/ranklib.html as version of 2.1

To build it from source, simply run : mvn install assembly:single

Why Fork it ?

This fork (ranklib is not publicly versioned) aim at offering the following improvements :

• Use of maven for build the JAR file.
• Create some unit tests (The lib contains some "//FIXME: not sure if this implementation is correct!" or "//FIXME: THIS IS VERY INEFFICIENT" comments) when in doubt on some functionalities we needed (few actually, mostly metrics).
• Add a new metric for binary testing when ranking follows a "winner-takes-all" strategy (percentage of first ranked item is found). (P@1 is bogus for the special case of an item ranked 2 and all other ranked 1).

This fork adresses the aforementioned shortcomings but does not aim at providing a clean room implementation of RankLib, which could be best adressed by recoding from scratch.

Licence

Licence follows original BSD.

They didi it :

Julien Subercaze [e-mail] Christophe Gravier [e-mail]