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Research Article

Gamma-Poisson Distribution Model for Text Categorization

Table 4

Classification results for the 20 Newsgroups dataset. For our results, we show the data obtained with all the words in the initial vocabulary.
Model Present work Allison [9]Madsen et al. [7]Clinchant and Gaussier [8] Joachims [21]Kibriya et al. [22]
Multinomial 0.875 0.896 0.8836
Dirichlet-multinomial 0.878   
beta-binomial     
gamma-Poisson      
SVM     0.9352