Softs (Open Source)

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Weka 3 - Data Mining with Open Source Machine Learning Software in Java

Weka is a collection of machine learning algorithms for data mining tasks. The algorithms can either be applied directly to a dataset or called from your own Java code. Weka contains tools for data pre-processing, classification, regression, clustering, association rules, and visualization. http://www.cs.waikato.ac.nz/ml/weka/