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Posted to dev@lucene.apache.org by "ASF subversion and git services (JIRA)" <ji...@apache.org> on 2018/04/26 01:41:00 UTC
[jira] [Commented] (SOLR-12273) Create Stream Evaluators for
distance measures
[ https://issues.apache.org/jira/browse/SOLR-12273?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16453342#comment-16453342 ]
ASF subversion and git services commented on SOLR-12273:
--------------------------------------------------------
Commit bea6f421058a59a2a52217845704625aa8ed6fe9 in lucene-solr's branch refs/heads/master from [~joel.bernstein]
[ https://git-wip-us.apache.org/repos/asf?p=lucene-solr.git;h=bea6f42 ]
SOLR-12273: Create Stream Evaluators for distance measures
> Create Stream Evaluators for distance measures
> ----------------------------------------------
>
> Key: SOLR-12273
> URL: https://issues.apache.org/jira/browse/SOLR-12273
> Project: Solr
> Issue Type: New Feature
> Security Level: Public(Default Security Level. Issues are Public)
> Reporter: Joel Bernstein
> Assignee: Joel Bernstein
> Priority: Major
> Fix For: 7.4
>
> Attachments: SOLR-12273.patch
>
>
> Currently distance measures are instantiated by passing the name of the distance measure to a function, for example the *knn* function can be passed the named parameter: distance="manhattan".
> This ticket will create a specific function for each distance measure which will be used to specify which distance measure to apply. With this design the *knn* function would be passed the function: manhattan() or any of the other distance measure functions.
> Sample syntax:
> {code:java}
> knn(a, b, manhattan())
> or
> dbscan(a, haversineMeters()){code}
>
>
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