Structural poisson mixtures for classification of documents

Jiri Grim, Jana Novovicova, Petr Somol
2008 Pattern Recognition (ICPR), Proceedings of the International Conference on  
Considering the statistical text classification problem we approximate class-conditional probability distributions by structurally modified Poisson mixtures. By introducing the structural model we can use different subsets of input variables to evaluate conditional probabilities of different classes in the Bayes formula. The method is applicable to document vectors of arbitrary dimension without any preprocessing. The structural optimization can be included into the EM algorithm in a statistically correct way.
doi:10.1109/icpr.2008.4761669 dblp:conf/icpr/GrimNS08 fatcat:2hqqb7lpgbhvfmopty4gdu67ye