Nicholas Knize created LUCENE-6994:
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Summary: GeoUtils Distance accuracy degrades with irregular
rectangles
Key: LUCENE-6994
URL: https://issues.apache.org/jira/browse/LUCENE-6994
Project: Lucene - Core
Issue Type: Bug
Reporter: Nicholas Knize
This is a continuation of LUCENE-6908 which validates USGS accuracy of 0.5% for
Sinnott haversine distance calculation. The issue also introduced a space
segmentation approach for BKD distance queries near the poles. In LUCENE-6956 a
restriction on distance size was initially removed to randomly test BKD
distance queries at any range. This revealed an issue where distance error
nearly doubles for exotic rectangles created by BKD's split algorithm. This
issue will investigate potential distance error caused by the segmentation
approach introduced in the second part of LUCENE-6908.
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