Hi, Interesting feature. See also https://issues.apache.org/jira/browse/LUCENE-3130 for a discussion of using TypeAttribtue to (de)boost certain token types such as synonyms. Having the ability to remove a token type from the search, we could do many kind of searches on the same field, that we currently need separate fields for.
-- Jan Høydahl, search solution architect Cominvent AS - www.cominvent.com Solr Training - www.solrtraining.com On 14. okt. 2011, at 09:17, Steven A Rowe wrote: > Hi Monica, > > AFAIK there is nothing like the filter you've described, and I believe it > would be generally useful. Maybe it could be called StopTermTypesFilter? > (Plural on Types to signify that more than one type of term can be stopped by > a single instance of the filter.) > > Such a filter should have an enablePositionIncrements option like StopFilter. > > Steve > >> -----Original Message----- >> From: Monica Skidmore [mailto:monica.skidm...@careerbuilder.com] >> Sent: Thursday, October 13, 2011 1:04 PM >> To: solr-user@lucene.apache.org; Otis Gospodnetic >> Subject: RE: Filter Question >> >> Thanks, Otis - yes, this is different from the synonyms filter, which we >> also use. For example, if you wanted all tokens that were marked 'lemma' >> to be removed, you could specify that, and all tokens with any type other >> than 'lemma' would still be returned. You could also choose to remove >> all tokens of types 'lemma' and 'word' (although that would probably be a >> bad idea!), etc. Normally, if you don't want a token type, you just >> don't include/run the filter that produces that type. However, we have a >> third-party filter that produces multiple types, and this allows us to >> select a subset of those types. >> >> I did see the HowToContribute wiki, but I'm relatively new to solr, and I >> wanted to see if this looked familiar to someone before I started down >> the contribution path. >> >> Thanks again! >> >> -Monica >> >> >> -----Original Message----- >> From: Otis Gospodnetic [mailto:otis_gospodne...@yahoo.com] >> Sent: Thursday, October 13, 2011 12:37 PM >> To: solr-user@lucene.apache.org >> Subject: Re: Filter Question >> >> Monica, >> >> This is different from Solr's synonyms filter with different synonyms >> files, one for index-time and the other for query-time expansion (not >> sure when you'd want that, but it looks like you need this and like >> this), right? If so, maybe you can describe what your filter does >> differently and then follow http://wiki.apache.org/solr/HowToContribute - >> thanks in advance! :) >> >> Otis >> ---- >> Sematext :: http://sematext.com/ :: Solr - Lucene - Nutch Lucene >> ecosystem search :: http://search-lucene.com/ >> >> >>> ________________________________ >>> From: Monica Skidmore <monica.skidm...@careerbuilder.com> >>> To: "solr-user@lucene.apache.org" <solr-user@lucene.apache.org> >>> Sent: Thursday, October 13, 2011 11:37 AM >>> Subject: Filter Question >>> >>> Our Solr implementation includes a third-party filter that adds >> additional, multiple term types to the token list (beyond "word", >> etc.). Most of the time this is exactly what we want, but we felt we >> could improve our search results by having different tokens on the index >> and query side. Since the filter in question was third-party and we >> didn't have access to source code, we wrote our own filter that will take >> out tokens based on their term attribute type. >>> >>> We didn't see another filter available that does this - did we overlook >> it? And if not, is this something that would be of value if we >> contribute it back to the Solr community? >>> >>> Monica Skidmore >>> >>> >>> >>>
