title: Large scale naïve Bayes classifier with top-k output
body: <p>I need a library for naïve Bayes large scale, with millions of training examples and +100k binary features. It must be an online version (updatable after training). I also need top-k output, that is multiple classifications for a single instance. Accuracy is not very important.</p>
  
  <p>The purpose is an automatic text categorization application.</p>
  
  <p>Any suggestions for a good library is very appreciated.</p>
  
  <p>EDIT: The library should preferably be in Java.</p>