Mark Harwood created LUCENE-6747: ------------------------------------ Summary: FingerprintFilter - a TokenFilter for clustering/linking purposes Key: LUCENE-6747 URL: https://issues.apache.org/jira/browse/LUCENE-6747 Project: Lucene - Core Issue Type: New Feature Components: modules/analysis Reporter: Mark Harwood Priority: Minor
A TokenFilter that emits a single token which is a sorted, de-duplicated set of the input tokens. This approach to normalizing text is used in tools like OpenRefine[1] and elsewhere [2] to help in clustering or linking texts. The implementation proposed here has a an upper limit on the size of the combined token which is output. [1] https://github.com/OpenRefine/OpenRefine/wiki/Clustering-In-Depth [2] https://rajmak.wordpress.com/2013/04/27/clustering-text-map-reduce-in-python/ -- This message was sent by Atlassian JIRA (v6.3.4#6332) --------------------------------------------------------------------- To unsubscribe, e-mail: dev-unsubscr...@lucene.apache.org For additional commands, e-mail: dev-h...@lucene.apache.org