Allowing for distance measures that incorporate frequency/popularity for
SuggestWord comparison
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Key: LUCENE-1417
URL: https://issues.apache.org/jira/browse/LUCENE-1417
Project: Lucene - Java
Issue Type: Improvement
Components: contrib/spellchecker
Affects Versions: 2.4
Reporter: Jason Rennie
Spelling suggestions are currently ordered first by a string edit distance
measure, then by popularity/frequency. This limits the ability of
popularity/frequency to affect suggestions. I think it would be better for the
distance measure to accept popularity/frequency as an argument and provide a
distance/score that incorporates any popularity/frequency considerations. I.e.
change StringDistance.getDistance to accept an additional argument: frequency
of the potential suggestion.
The new SuggestWord.compareTo function would only order by score. We could
achieve the existing behavior by adding a small inverse frequency value to the
distances.
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