Boris Chidlovskii Loïc Lecerf Scalable Feature Selection for Multi-class Problems. 227-240 2008 ECML/PKDD (1) http://dx.doi.org/10.1007/978-3-540-87479-9_33 conf/pkdd/2008-1 db/conf/pkdd/pkdd2008-1.html#ChidlovskiiL08