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Posted to solr-dev@lucene.apache.org by "Grant Ingersoll (JIRA)" <ji...@apache.org> on 2009/11/17 16:51:39 UTC
[jira] Resolved: (SOLR-1302) Fun with Distances - Add Distance
functions for a variety of things
[ https://issues.apache.org/jira/browse/SOLR-1302?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Grant Ingersoll resolved SOLR-1302.
-----------------------------------
Resolution: Fixed
I'm going to close this, as I've implemented a bunch of them, with the exception of cosine. If someone wants to do that one, they can open a new issue.
> Fun with Distances - Add Distance functions for a variety of things
> -------------------------------------------------------------------
>
> Key: SOLR-1302
> URL: https://issues.apache.org/jira/browse/SOLR-1302
> Project: Solr
> Issue Type: New Feature
> Reporter: Grant Ingersoll
> Assignee: Grant Ingersoll
> Priority: Minor
> Fix For: 1.5
>
> Attachments: SOLR-1302.patch, SOLR-1302.patch, SOLR-1302.patch
>
>
> There are many distance functions that are useful to have:
> 1. Great Circle (lat/lon) and other geo distances
> 2. Euclidean (Vector)
> 3. Manhattan (Vector)
> 4. Cosine (Vector)
> For the vector ones, the idea is that the fields on a document can be used to determine the vector.
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