Class CompleteLabelFilter

All Implemented Interfaces:
AcceptingVisitor

public class CompleteLabelFilter extends ContextLabelFilter
A filter that removes "incomplete" labels.

For example, in a collection of documents related to Data Mining, the phrase Conference on Data is incomplete in a sense that most likely it should be Conference on Data Mining or even Conference on Data Mining in Large Databases. When truncated phrase removal is enabled, the algorithm would try to remove the "incomplete" phrases like the former one and leave only the more informative variants.

See this document, page 31 for a definition of a complete phrase.

  • Field Details

    • labelOverrideThreshold

      public AttrDouble labelOverrideThreshold
      Determines the strength of the truncated label filter. The lowest value means strongest truncated labels elimination, which may lead to overlong cluster labels and many unclustered documents. The highest value effectively disables the filter, which may result in short or truncated labels.
  • Constructor Details

    • CompleteLabelFilter

      public CompleteLabelFilter()
  • Method Details

    • filter

      public void filter(PreprocessingContext context, boolean[] acceptedStems, boolean[] acceptedPhrases)
      Marks incomplete labels.
      Specified by:
      filter in class ContextLabelFilter
      Parameters:
      context - contains words and phrases to be filtered
      acceptedStems - the filter should set to false those elements that correspond to the stems to be filtered out
      acceptedPhrases - the filter should set to false those elements that correspond to the phrases to be filtered out