What is the philosophy about the 3.x branch? This is an all-new feature
added to 3.x.
Andrzej Bialecki (JIRA) wrote:
[
https://issues.apache.org/jira/browse/LUCENE-2482?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Andrzej Bialecki resolved LUCENE-2482.
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Resolution: Fixed
Committed in rev. 998948.
Index sorter
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Key: LUCENE-2482
URL: https://issues.apache.org/jira/browse/LUCENE-2482
Project: Lucene - Java
Issue Type: New Feature
Components: contrib/*
Affects Versions: 3.1
Reporter: Andrzej Bialecki
Assignee: Andrzej Bialecki
Fix For: 3.1
Attachments: indexSorter.patch
A tool to sort index according to a float document weight. Documents with high weight are
given low document numbers, which means that they will be first evaluated. When using a
strategy of "early termination" of queries (see TimeLimitedCollector) such
sorting significantly improves the quality of partial results.
(Originally this tool was created by Doug Cutting in Nutch, and used norms as
document weights - thus the ordering was limited by the limited resolution of
norms. This is a pure Lucene version of the tool, and it uses arbitrary floats
from a specified stored field).
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