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Posted to issues@commons.apache.org by "Chen Tao (Jira)" <ji...@apache.org> on 2020/03/09 02:28:00 UTC

[jira] [Created] (MATH-1519) Implement the Calinski-Harabasz clusters evaluator

Chen Tao created MATH-1519:
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             Summary: Implement the Calinski-Harabasz clusters evaluator
                 Key: MATH-1519
                 URL: https://issues.apache.org/jira/browse/MATH-1519
             Project: Commons Math
          Issue Type: New Feature
            Reporter: Chen Tao


It is also known as the Variance Ratio Criterion.
The Calinsk-iHarabasz score is defined as ratio between the within-cluster dispersion and the between-cluster dispersion, can be used to evaluate the model, where a higher Calinski-Harabasz score relates to a model with better defined clusters.
For more information, please read:
https://scikit-learn.org/stable/modules/generated/sklearn.metrics.calinski_harabasz_score.html
https://www.tandfonline.com/doi/abs/10.1080/03610927408827101



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