[ https://issues.apache.org/jira/browse/LUCENE-8025?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Robert Muir resolved LUCENE-8025. --------------------------------- Resolution: Fixed Fix Version/s: 7.2 master (8.0) > compute avgdl correctly for DOCS_ONLY > ------------------------------------- > > Key: LUCENE-8025 > URL: https://issues.apache.org/jira/browse/LUCENE-8025 > Project: Lucene - Core > Issue Type: Bug > Reporter: Robert Muir > Priority: Major > Fix For: master (8.0), 7.2 > > Attachments: LUCENE-8025.patch > > > Spinoff of LUCENE-8007: > If you omit term frequencies, we should score as if all tf values were 1. > This is the way it worked for e.g. ClassicSimilarity and you can understand > how it degrades. > However for sims such as BM25, we bail out on computing avg doclength (and > just return a bogus value of 1) today, screwing up stuff related to length > normalization too, which is separate. > Instead of a bogus value, we should substitute sumDocFreq for > sumTotalTermFreq (all postings have freq of 1, since you omitted them). -- This message was sent by Atlassian JIRA (v6.4.14#64029) --------------------------------------------------------------------- To unsubscribe, e-mail: dev-unsubscr...@lucene.apache.org For additional commands, e-mail: dev-h...@lucene.apache.org