lucene-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Adrien Grand (JIRA)" <j...@apache.org>
Subject [jira] [Created] (LUCENE-7309) Speed up Polygon2D construction
Date Wed, 01 Jun 2016 07:30:59 GMT
Adrien Grand created LUCENE-7309:
------------------------------------

             Summary: Speed up Polygon2D construction
                 Key: LUCENE-7309
                 URL: https://issues.apache.org/jira/browse/LUCENE-7309
             Project: Lucene - Core
          Issue Type: Improvement
            Reporter: Adrien Grand
            Assignee: Adrien Grand
            Priority: Minor


Polygon2D.create recursively sorts on each dimension to build a tree. However, it does not
really need to sort the data, it just needs to compute the median and partition other values
around it, which can be performed in O(n). If I am not mistaken, this would make Polygon2D.create
run in O(n log(n)) rather than O(n log^2(n)) today.



--
This message was sent by Atlassian JIRA
(v6.3.4#6332)

---------------------------------------------------------------------
To unsubscribe, e-mail: dev-unsubscribe@lucene.apache.org
For additional commands, e-mail: dev-help@lucene.apache.org


Mime
View raw message