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  1. OpenNLP
  2. OPENNLP-861

Add Chi-Squared Data Indexer for Feature Selection

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    Details

    • Type: New Feature
    • Status: Open
    • Priority: Minor
    • Resolution: Unresolved
    • Affects Version/s: 1.6.0
    • Fix Version/s: None
    • Component/s: Machine Learning
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      Description

      Text classification will naturally produce a lot of features. A lot of them are independent of the category, and provide no real information gain in the classification.

      The Chi-Squared feature selection method will allow features that do not pass a threshold for dependency to be removed from the feature list, keeping the feature list a reasonable size without significantly affecting the classification accuracy.

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            • Assignee:
              Unassigned
              Reporter:
              jxihong Joey Hong
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              Dates

              • Created:
                Updated: