Feature selection: Minimal Redundancy and Maximal Relevance (mRMR)
mfeat: https://archive.ics.uci.edu/ml/datasets/Multiple+Features
Hanchuan Peng, Fuhui Long, and Chris Ding, "Feature selection based on mutual information: criteria of max-dependency, max-relevance, and min-redundancy," IEEE Transactions on Pattern Analysis and Machine Intelligence, Vol. 27, No. 8, pp.1226-1238, 2005.