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https://issues.apache.org/jira/browse/SOLR-12890?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16949115#comment-16949115
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Trey Grainger commented on SOLR-12890:
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Very Cool, [~sokolov]! Left a comment/question on that issue.

> Vector Search in Solr (Umbrella Issue)
> --------------------------------------
>
>                 Key: SOLR-12890
>                 URL: https://issues.apache.org/jira/browse/SOLR-12890
>             Project: Solr
>          Issue Type: New Feature
>            Reporter: mosh
>            Priority: Major
>
> We have recently come across a need to index documents containing vectors 
> using solr, and have even worked on a small POC. We used an URP to calculate 
> the LSH(we chose to use the superbit algorithm, but the code is designed in a 
> way the algorithm picked can be easily chagned), and stored the vector in 
> either sparse or dense forms, in a binary field.
> Perhaps an addition of an LSH URP in conjunction with a query parser that 
> uses the same properties to calculate LSH(or maybe ktree, or some other 
> algorithm all together) should be considered as a Solr feature?



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