Thanks for your suggestion Michael and thanks to Uwe for clarifying. Payload is currently used to store only the start positions. What I gathered from your suggestion is that we could possibly store the end position, or span, or some other complex encoding in order to store the extra information. Am I right?
--Sumukh Michael McCandless-2 wrote: > > > Since Lucene doesn't represent/store end position for a token, I don't > think the index can properly represent SYN spanning two positions? > > I suppose you could encode this into payloads, and create a custom > query that would look at the payload to enforce the constraint. > > Or, if you switch to doing SYN expansion only at runtime (not adding > it to the index), that might work. > > Mike > > Uwe Schindler wrote: > >> I think his problem is, that "SYN" is a synonym for the phrase "WORD1 >> WORD2". Using these positions, a phrase like "SYN WORD2" would also >> match >> (or other problems in queries that depend on order of words). >> >> Uwe >> >> ----- >> Uwe Schindler >> H.-H.-Meier-Allee 63, D-28213 Bremen >> http://www.thetaphi.de >> eMail: u...@thetaphi.de >> >>> -----Original Message----- >>> From: Michael McCandless [mailto:luc...@mikemccandless.com] >>> Sent: Monday, March 02, 2009 4:07 PM >>> To: java-user@lucene.apache.org >>> Subject: Re: Indexing synonyms for multiple words >>> >>> >>> Shouldn't WORD2's position be 1 more than your SYN? >>> >>> Ie, don't you want these positions?: >>> >>> WORD1 2 >>> WORD2 3 >>> SYN 2 >>> >>> The position is the starting position of the token; Lucene doesn't >>> store an ending position >>> >>> Mike >>> >>> Sumukh wrote: >>> >>>> Hi, >>>> >>>> I'm fairly new to Lucene. I'd like to know how we can index synonyms >>>> for >>>> multiple words. >>>> >>>> This is the scenario: >>>> >>>> Consider a sentence: AAA BBB WORD1 WORD2 EEE FFF GGG. >>>> >>>> Now assume the two words combined WORD1 WORD2 can be replaced by >>>> another >>>> word SYN. >>>> >>>> If I place SYN after WORD1 with positionIncrement set to 0, WORD2 >>>> will >>>> follow SYN, >>>> which is incorrect; and the other way round if I place it after >>>> WORD2. >>>> >>>> If any of you have solved a similar problem, I'd be thankful if you >>>> could >>>> share some light on >>>> the solution. >>>> >>>> Regards, >>>> Sumukh >>> >>> >>> --------------------------------------------------------------------- >>> To unsubscribe, e-mail: java-user-unsubscr...@lucene.apache.org >>> For additional commands, e-mail: java-user-h...@lucene.apache.org >> >> >> >> --------------------------------------------------------------------- >> To unsubscribe, e-mail: java-user-unsubscr...@lucene.apache.org >> For additional commands, e-mail: java-user-h...@lucene.apache.org >> > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: java-user-unsubscr...@lucene.apache.org > For additional commands, e-mail: java-user-h...@lucene.apache.org > > > -- View this message in context: http://www.nabble.com/Indexing-synonyms-for-multiple-words-tp22289069p22300656.html Sent from the Lucene - Java Users mailing list archive at Nabble.com. --------------------------------------------------------------------- To unsubscribe, e-mail: java-user-unsubscr...@lucene.apache.org For additional commands, e-mail: java-user-h...@lucene.apache.org
