Hi! I think we're talking about different things. My question is about using synonyms for AND/OR/NOT operators, not about synonyms of words in the index. For example, in some language: AND = AANNDD; OR = OORR; NOT = NNOOTT
So, the user can enter: (cat OR kitty) AND black AND tail and either: (cat OORR kitty) AANNDD black AANNDD tail Both sets of operators must work. It must be some kind of a query parser modification/parametering, so there is nothing to do with the index. I hope I was more specific now ;) Thanx, Sanyi --- Erik Hatcher <[EMAIL PROTECTED]> wrote: > On Dec 21, 2004, at 3:04 AM, Sanyi wrote: > > What is the simplest way to add synonyms for AND/OR/NOT operators? > > I'd like to support two sets of operator words, so people can use > > either the original english > > operators and my custom ones for our local language. > > There are two options that I know of: 1) add synonyms during indexing > and 2) add synonyms during querying. Generally this would be done > using a custom analyzer. > > If the synonym mappings are static and you don't mind a larger index, > adding them during indexing avoids the complexity of rewriting the > query. Injecting synonyms during querying allows the synonym mappings > to change dynamically, though does produce more complex queries. > Here's an example you'll find with the source code distribution of > Lucene in Action which uses WordNet to look up synonyms. > > Erik > > p.s. I'm sensitive to over-marketing Lucene in Action in this forum as > it would bother me to constantly see an advertisement. You can be sure > that any mentions of it from me will coincide with concrete examples > (which are freely available) that are directly related to questions > being asked. > > > % ant -emacs SynonymAnalyzerViewer > Buildfile: build.xml > > check-environment: > > compile: > > build-test-index: > > build-perf-index: > > prepare: > > SynonymAnalyzerViewer: > > Using a custom SynonymAnalyzer, two fixed strings are > analyzed with the results displayed. Synonyms, from the > WordNet database, are injected into the same positions > as the original words. > > See the "Analysis" chapter for more on synonym injection and > position increments. The "Tools and extensions" chapter covers > the WordNet feature found in the Lucene sandbox. > > Press return to continue... > > Running lia.analysis.synonym.SynonymAnalyzerViewer... > > 1: [quick] [warm] [straightaway] [spry] [speedy] [ready] [quickly] > [promptly] [prompt] [nimble] [immediate] [flying] [fast] [agile] > 2: [brown] [brownness] [brownish] > 3: [fox] [trick] [throw] [slyboots] [fuddle] [fob] [dodger] > [discombobulate] [confuse] [confound] [befuddle] [bedevil] > 4: [jumps] > 5: [over] [o] [across] > 6: [lazy] [faineant] [indolent] [otiose] [slothful] > 7: [dogs] > > 1: [oh] > 2: [we] > 3: [get] [acquire] [aim] [amaze] [arrest] [arrive] [baffle] [beat] > [become] [beget] [begin] [bewilder] [bring] [can] [capture] [catch] > [cause] [come] [commence] [contract] [convey] [develop] [draw] [drive] > [dumbfound] [engender] [experience] [father] [fetch] [find] [fix] > [flummox] [generate] [go] [gravel] [grow] [have] [incur] [induce] [let] > [make] [may] [mother] [mystify] [nonplus] [obtain] [perplex] [produce] > [puzzle] [receive] [scram] [sire] [start] [stimulate] [stupefy] > [stupify] [suffer] [sustain] [take] [trounce] [undergo] > 4: [both] > 5: [kinds] > 6: [country] [state] [nationality] [nation] [land] [commonwealth] [area] > 7: [western] [westerly] > 8: [bb] > > BUILD SUCCESSFUL > Total time: 10 seconds > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: [EMAIL PROTECTED] > For additional commands, e-mail: [EMAIL PROTECTED] > > __________________________________ Do you Yahoo!? Dress up your holiday email, Hollywood style. Learn more. http://celebrity.mail.yahoo.com --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]