Clustering Inside Classes Improves Performance of Linear Classifiers.

Dmitriy Fradkin Clustering Inside Classes Improves Performance of Linear Classifiers. 439-442 2008 ICTAI (2) http://dx.doi.org/10.1109/ICTAI.2008.29 conf/ictai/2008-2 db/conf/ictai/ictai2008-2.html#Fradkin08