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Posted to dev@lucene.apache.org by "Atri Sharma (JIRA)" <ji...@apache.org> on 2019/05/01 12:16:00 UTC

[jira] [Created] (LUCENE-8788) Order LeafReaderContexts by Estimated Number Of Hits

Atri Sharma created LUCENE-8788:
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             Summary: Order LeafReaderContexts by Estimated Number Of Hits
                 Key: LUCENE-8788
                 URL: https://issues.apache.org/jira/browse/LUCENE-8788
             Project: Lucene - Core
          Issue Type: Improvement
            Reporter: Atri Sharma


We offer no guarantee on the order in which an IndexSearcher will look at segments during a search operation. This can be improved for use cases where an engine using Lucene invokes early termination and uses the partially collected hits. A better model would be if we sorted segments by the estimated number of hits, thus increasing the probability of the overall relevance of the returned partial results.



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