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Joel Nothman edited comment on SOLR-3931 at 11/7/12 12:41 PM: -------------------------------------------------------------- Version 4.0.0 allows the specification of a custom similarity factory for each field in schema.xml (see SOLR-2338; it seems documentation is a bit lacking). So these options are not per-query, but per-core. It would be possible to copy or patch Lucene's {{DefaultSimilarity}} and Solr's {{DefaultSimilarityFactory}} to take {{useCoord}} and {{useQueryNorm}} parameters. was (Author: jnothman): Version 4.0.0 allows the specification of a custom similarity factory for each field in schema.xml (see SOLR-2338; it seems documentation is a bit lacking). So these options are not per-query, but per-core. It would be possible to copy or patch Lucene's {{DefaultSimilarity}} and Solr's {{DefaultSimilarityFactory}} to take `useCoord` and `useQueryNorm` parameters. > Turn off coord() factor for scoring > ----------------------------------- > > Key: SOLR-3931 > URL: https://issues.apache.org/jira/browse/SOLR-3931 > Project: Solr > Issue Type: Bug > Affects Versions: 4.0 > Reporter: Bill Bell > > We would like to remove coordination factor from scoring. > FOr small fields (like name of doctor), we want to not score higher if the > same term is in the field more than once. Makes sense for books, not so much > for formal names. > /solr/select?q=*:*&coordFactor=false > Default is true. > (Note: we might want to make each of these optional - tf, idf, coord, > queryNorm > coord(q,d) is a score factor based on how many of the query terms are found > in the specified document. Typically, a document that contains more of the > query's terms will receive a higher score than another document with fewer > query terms. This is a search time factor computed in coord(q,d) by the > Similarity in effect at search time. -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators For more information on JIRA, see: http://www.atlassian.com/software/jira --------------------------------------------------------------------- To unsubscribe, e-mail: dev-unsubscr...@lucene.apache.org For additional commands, e-mail: dev-h...@lucene.apache.org