Carrot2 clustering should use both its own and Solr's stop words
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Key: SOLR-2450
URL: https://issues.apache.org/jira/browse/SOLR-2450
Project: Solr
Issue Type: Improvement
Components: contrib - Clustering
Reporter: Stanislaw Osinski
Priority: Minor
Fix For: 3.2, 4.0
While using only Solr's stop words for clustering isn't a good idea (compared
to indexing, clustering needs more aggressive stop word removal to get
reasonable cluster labels), it would be good if Carrot2 used both its own and
Solr's stop words.
I'm not sure what the best way to implement this would be though. My first
thought was to simply load {{stopwords.txt}} from Solr config dir and merge
them with Carrot2's. But then, maybe a better approach would be to get the stop
words from the StopFilter being used? Ideally, we should also consider the
per-field stop filters configured on the fields used for clustering.
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