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I am looking for an open source outliers detector. I know that it is possible to realize such detector using rapidminer/knime/wekka but I wonder if there is already such a tool.

Skarab
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  • A related question: http://stackoverflow.com/questions/6026067/outlier-detection-in-data-mining – Skarab Jun 18 '11 at 16:25

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The database group at the University of Munich publishes a piece of open source software that includes various outlier detection algorithms, including the local outlier factor. The package also includes tools for visualization of results.

The toolkit is called ELKI and available as open source software.

Erich Schubert
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Michael Nett
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