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https://issues.apache.org/jira/browse/LUCENE-5476?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13919227#comment-13919227
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Rob Audenaerde edited comment on LUCENE-5476 at 3/4/14 10:35 AM:
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I have taken these points into account in the new patch.
* Separated {{XORShift64Random}} to o.a.l.util
* Moved SampledDocs and declared private
* Fixed some typos / redundancy in the javadocs.
* Refactored the c'tors, removed the init.
was (Author: robau):
I have taken these points into account in the new patch.
* Separated {{XORShift64Random}} to o.a.l.util
* Moved SampledDocs and declared private
* Fixed some typos / redundancy in the javadocs.
> Facet sampling
> --------------
>
> Key: LUCENE-5476
> URL: https://issues.apache.org/jira/browse/LUCENE-5476
> Project: Lucene - Core
> Issue Type: Improvement
> Reporter: Rob Audenaerde
> Attachments: LUCENE-5476.patch, LUCENE-5476.patch, LUCENE-5476.patch,
> LUCENE-5476.patch, SamplingComparison_SamplingFacetsCollector.java,
> SamplingFacetsCollector.java
>
>
> With LUCENE-5339 facet sampling disappeared.
> When trying to display facet counts on large datasets (>10M documents)
> counting facets is rather expensive, as all the hits are collected and
> processed.
> Sampling greatly reduced this and thus provided a nice speedup. Could it be
> brought back?
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