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https://issues.apache.org/jira/browse/LUCENE-8788?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16844806#comment-16844806
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Atri Sharma commented on LUCENE-8788:
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[~jpountz] Yes, that is precisely the idea i.e. "learning" from previous
collections to take decisions for the next set of collections. We can batch up
slices into "familiies" i.e. set of sets, and each set is collected in
sequential manner with shared metastate like you described above. We could
potentially collect multiple families in parallel. WDYT?
Thanks for validating the idea. I will work on a PoC patch now.
I like the idea [~jim.ferenczi] proposed. I can open a Jira for that and work
on a patch for it as well, unless Jim wants to do it himself?
> 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
> Priority: Major
>
> 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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