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
>
>
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