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https://issues.apache.org/jira/browse/LUCENE-5476?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13931510#comment-13931510
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Rob Audenaerde commented on LUCENE-5476:
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Hi all,
Making good progress, only I'm not really sure what to do with the {{scores}}.
I could only keep the scores of the sampled documents (creating a new
{{scores[]}} in the {{createSample}}. Or just leave scoring out completely for
the sampler? (Passing keepscores = false, removing the c'tor param, setting
{[scores}} to {{null}}?
> 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, 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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