Generally the following open source/commercial tools are used.


Social Networks

Gephi, Netlogo, Pajek, JUNG, neo4j for Social Networks Analysis


Data Mining

Weka, Rapid Miner (open source version), KNIME, Rattle, NLTK, Orange, Scikit-learn, LIBSVM, R, Matlab (commercial) etc.


Image Processing

OpenCV, Octave, ImageJ, Scilab, OSSIM, Matlab (commercial)


Pattern Recognition

PRTools,, SVM, LIBSVM,