[ http://issues.apache.org/jira/browse/LUCENE-329?page=comments#action_12440168 ] Marco Dissel commented on LUCENE-329: -------------------------------------
Why isn't the patch implemented? My users are finding the current result of fuzzy searched not correct (as stated in the sample provided by Mark) > Fuzzy query scoring issues > -------------------------- > > Key: LUCENE-329 > URL: http://issues.apache.org/jira/browse/LUCENE-329 > Project: Lucene - Java > Issue Type: Bug > Components: Search > Affects Versions: 1.2rc5 > Environment: Operating System: All > Platform: All > Reporter: Mark Harwood > Assigned To: Lucene Developers > Attachments: patch.txt > > > Queries which automatically produce multiple terms (wildcard, range, prefix, > fuzzy etc)currently suffer from two problems: > 1) Scores for matching documents are significantly smaller than term queries > because of the volume of terms introduced (A match on query Foo~ is 0.1 > whereas a match on query Foo is 1). > 2) The rarer forms of expanded terms are favoured over those of more common > forms because of the IDF. When using Fuzzy queries for example, rare mis- > spellings typically appear in results before the more common correct > spellings. > I will attach a patch that corrects the issues identified above by > 1) Overriding Similarity.coord to counteract the downplaying of scores > introduced by expanding terms. > 2) Taking the IDF factor of the most common form of expanded terms as the > basis of scoring all other expanded terms. -- This message is automatically generated by JIRA. - If you think it was sent incorrectly contact one of the administrators: http://issues.apache.org/jira/secure/Administrators.jspa - For more information on JIRA, see: http://www.atlassian.com/software/jira --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
