I have classified a set of documents with Lucene (fields: content, category). Each document has it's own category, but some of them are labeled as uncategorized. Is there any way to classify these documents easily in java?
As of Lucene 5.2.1, you can use indexed documents to classify new documents. Out of the box, Lucene offers a naive Bayes classifier, a k-Nearest Neighbor classifier (based on the MoreLikeThis class) and a Perceptron based classifier.
缺点是所有这些类都标有实验性警告，并附有维基百科的链接.
The drawback is that all of these classes are marked with experimental warnings and documented with links to Wikipedia.
