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Posted to dev@lucene.apache.org by "Robert Muir (JIRA)" <ji...@apache.org> on 2016/03/21 19:22:25 UTC

[jira] [Created] (LUCENE-7124) SloppyMath is too accurate

Robert Muir created LUCENE-7124:
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             Summary: SloppyMath is too accurate
                 Key: LUCENE-7124
                 URL: https://issues.apache.org/jira/browse/LUCENE-7124
             Project: Lucene - Core
          Issue Type: Improvement
            Reporter: Robert Muir


Followup from LUCENE-7123:

Latitude/longitude values are encoded by GeoPointField/LatLonPoint with 1E-6 or 1E-7 error. 

However, the sloppy distance formula is far too accurate to the actual (10nm), making it slower and relying on large tables. We should only do as good as we need, and especially try to reduce the huge tables.



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