The CompLearn Toolkit is a suite of simple-to-use utilities that you can use to mine patterns in data, even across domains. For example, it can classify musical styles of pieces of music and identify unknown composers. It can identify the language of bodies of text. It can discover the relationships between species of life and even the origin of new unknown viruses such as SARS. Other uncharted areas are up to you to explore. In fact, this method is so general that it requires no background knowledge about any particular classification. There are no domain-specific parameters to set and only a handful of general settings. Just feed and run. From National Research Institute CWI in Amsterdam.....(free).....