Hi all, Would this approach be recommended for stemmed words as well. For example let say the original word is 'mower', I want matches on 'mow', 'mowing' and 'mowers' but the most relevance would obviously be matches for 'mower'. Should I index my documents unstemmed and then stem at the query words with a lower weighting?
-M On Dec 28, 2007 10:39 AM, Grant Ingersoll <[EMAIL PROTECTED]> wrote: > Yes, the Payload stuff should work for this, but you will have to set > it up during indexing. The simpler approach is probably a separate > field for synonyms, but this means analyzing the same content twice > (or trying out the TeeTokenFilter, but this is advanced usage at this > point, since it is unreleased.) > > There is no support for payloads in the query parser, so you would > have to construct the queries on your own or at least add in queries > based on the clauses that the QueryParser outputs. > > > > On Dec 28, 2007, at 10:54 AM, Frank Schima wrote: > > > > > Hi Grant, > > > > > > > > Grant Ingersoll-6 wrote: > >> > >> You can use the payload functionality (have a look at > >> BoostingTermQuery and Michael B. excellent ApacheCon talk at > >> http://people.apache.org/~buschmi/apachecon/<http://people.apache.org/%7Ebuschmi/apachecon/>). > Other option is to > >> put > >> the synonyms into a separate field and boost that less than the main > >> field. > >> > >> On Dec 27, 2007, at 4:19 PM, Frank Schima wrote: > >> > >>> So I have my fancy new stemmed synonym based Lucene index. Let's say > >>> I have > >>> the following synonym defined: > >>> > >>> radiation -> radiotherapy (and the reverse) > >>> > >>> The search results rank all results exactly the same. Is there a way > >>> to > >>> Boost the actual search term a little higher than the synonym(s)? > >> > > > > To be clear, if someone searches for "radiation" I want content > > exactly with > > "radiation" to rank higher than content with "radiotherapy". But if > > someone > > searches for "radiotherapy", I want content with that to rank higher > > than > > content with "radiation". Will Payloads do this for me? > > > > I would try it but I'm having trouble figuring out how to do the > > search. For > > the search, I'm currently using a MultiFieldQueryParser, so like this: > > > > SnowballAnalyzer sba = new SnowballAnalyzer("English", > > StopAnalyzer.ENGLISH_STOP_WORDS); > > QueryParser qp = new MultiFieldQueryParser( new String[] {"field1", > > "field2", "field3"}, sba ); > > try { > > Query query = qp.parse(strSearchTerms); > > } catch ( Throwable th) { > > ... > > } > > > > However, the payload example in the presentation requires a > > BoostingTermQuery, like this: > > > > Query query = new BoostingTermQuery( new Term("field", > > "searchterm")); > > > > Is there a way to make the two work together? > > > > > > Thanks! > > Frank > > > > > > -- > > View this message in context: > http://www.nabble.com/Synonyms-and-Ranking-tp14518753p14527508.html > > Sent from the Lucene - Java Users mailing list archive at Nabble.com. > > > > > > --------------------------------------------------------------------- > > To unsubscribe, e-mail: [EMAIL PROTECTED] > > For additional commands, e-mail: [EMAIL PROTECTED] > > > > -------------------------- > Grant Ingersoll > http://lucene.grantingersoll.com > > Lucene Helpful Hints: > http://wiki.apache.org/lucene-java/BasicsOfPerformance > http://wiki.apache.org/lucene-java/LuceneFAQ > > > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: [EMAIL PROTECTED] > For additional commands, e-mail: [EMAIL PROTECTED] > >
