Song Wang Fan Min Zhihai Wang Tianyu Cao OFFD: Optimal Flexible Frequency Discretization for Naïve Bayes Classification. 704-712 2009 ADMA http://dx.doi.org/10.1007/978-3-642-03348-3_74 conf/adma/2009 db/conf/adma/adma2009.html#WangMWC09