Sergey Tulyakov Stefan Jaeger Venu Govindaraju David S. Doermann Review of Classifier Combination Methods. 361-386 2008 Machine Learning in Document Analysis and Recognition http://dx.doi.org/10.1007/978-3-540-76280-5_14 series/sci/2008-90 db/series/sci/sci90.html#TulyakovJGD08