TANAGRA is a free DATA MINING software for academic and research purposes. It proposes several data mining methods from exploratory data analysis, statistical learning, machine learning and databases area.
L. Hunyadi, and I. Vajk. Proc. of the 15th International Conference on Systems, Signals and Image Processing (IWSSIP), page 197--200. Bratislava, Slovakia, (25--28 June 2008)