[LUCENE-4208] Spatial distance relevancy should use score of 1/distance

• Type: New Feature
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 4.0
• Component/s: modules/spatial
• Lucene Fields: New
• Assignee: David Smiley
• Reporter: David Smiley
• Created: 10/Jul/12 17:16
• Updated: 28/Aug/22 13:21
• Resolved: 15/Sep/12 16:46

Description

The SpatialStrategy.makeQuery() at the moment uses the distance as the score (although some strategies – TwoDoubles if I recall might not do anything which would be a bug). The distance is a poor value to use as the score because the score should be related to relevancy, and the distance itself is inversely related to that. A score of 1/distance would be nice. Another alternative is earthCircumference/2 - distance, although I like 1/distance better. Maybe use a different constant than 1.

Credit: this is Chris Male's idea.

Issue Links

• is depended upon by: SOLR-3304 Add Solr support for the new Lucene spatial module
• is depended upon by: LUCENE-4389 Fix TwoDoubles dateline support