I want to know what is the best open source Java based framework for Text Mining, to use botg Machine Learning and dictionary Methods.
I'm using Mallet but there are not that much documentation and I do not know if it will fit all my requirements.
I want to know what is the best open source Java based framework for Text Mining, to use botg Machine Learning and dictionary Methods.
I'm using Mallet but there are not that much documentation and I do not know if it will fit all my requirements.
We use lucene to process live streams from the internet. It has a native java api.
http://lucene.apache.org/java/docs/
You can then use mahout which is a bunch of machien learning algorithms which operate on top of lucene.
http://lucene.apache.org/mahout/
I built a maximum entropy named entity recognizer for CoNLL data using OpenNLP MaxEnt http://sourceforge.net/projects/maxent/ for a course once.
Required a lot of data preprocessing with custom perl scripts do get all the features extracted into nice neat numerical vectors though.
Although not a specialized text mining framework, Weka has a number of classifiers usually employed in text mining tasks such as: SVM, kNN, multinomial NaiveBayes, among others.
It also has a few filters to wok with textual data like the
StringToWordVector
filter which can perform TF/IDF transformation.Check out the Weka wiki website for more information.
You may already know about GATE: http://gate.ac.uk/
...but that's what we've used (at my day job) for lots of different text mining problems. It's pretty flexible and open.
I honestly think that the several answers presented here are very good. However, to fulfill my requirements I have chosen to use Apache UIMA with ClearTK. It supports several ML Methods and I do not have any licences problem. Plus, I can make wrappers to other ML methodologies, and I take the advantage of the UIMA framework, which is very well organized and fast.
Thank you all for your interesting answers.
Best Regards, ukrania
Maybe have a look at Java Open Source NLP and Text Mining tools.