(30) What are some classification/machine learning libraries in Java? - Quora

Weka(Data Mining with Open Source Machine Learning Software in Java):-  Weka is data mining toolkit and supports many data mining algorithms.  But most of the algorithms cannot directly applied to text document. For  document classification check out link(Text categorization with Weka). You can either use StringtoWordVector filter  to tokor you can try out third party tool like taghelper(Page on Cmu). TagHelper is build on top of weka.
 

Apache Mahout(Page on Apache You can use naive base/ complement naive bayes classification. Complement naive bayes algorithm is useful if you are working on imbalanced dataset. Mahout is useful if you are working on large dataset.

Rapid miner(Rapid - I - RapidMiner):- Rapid Miner is data mining toolkit and similar to weka it supports lot of algorithm. Check out video link(

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