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From: Dawid Weiss <dawid.weiss@gmail.com>
Date: Fri, 6 May 2011 11:30:14 +0200
Message-ID: <BANLkTimBytcqbMiy7OJoFyAMpvzbfg3qCA@mail.gmail.com>
Subject: Re: Using Solr's (Auto)suggest with plain lucene
To: java-user@lucene.apache.org
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So you'd like case-sensitive lookup, not case-insensitive lookup. FSTLookup
just takes characters from the input and does not perform any normalization=
.
So, if you feed it terms with casing, you'll get (cased) suggestions back.
If you need cased suggestions, but provide normalized (lowercased) prefixes
you'll get nothing, although such a feature would be relatively easy to
implement based on the automaton code currently in the SVN.

Dawid

On Fri, May 6, 2011 at 11:18 AM, Clemens Wyss <clemensdev@mysign.ch> wrote:

> Thx Dawid,
> Could you be more precise on 2. ? I'd like to leave the suggested terms
> untouched, i.e. cased.
>
> Clemens
>
> > -----Urspr=C3=BCngliche Nachricht-----
> > Von: Dawid Weiss [mailto:dawid.weiss@gmail.com]
> > Gesendet: Freitag, 6. Mai 2011 11:12
> > An: java-user@lucene.apache.org
> > Betreff: Re: Using Solr's (Auto)suggest with plain lucene
> >
> > 1. FSTLookup is in the trunk only, it has not been released.
> > 2. Case-insensitive lookups are possible, you'd just need to pass
> normalized
> > tokens from which the dictionary is built and then use the same
> > normalization at the time you query for suggestions.
> > 3. "http://search-lucene.com/m/586gA4ccL11". I have no idea.
> >
> > Dawid
> >
> > On Fri, May 6, 2011 at 11:06 AM, Clemens Wyss <clemensdev@mysign.ch>
> > wrote:
> >
> > > I have come across TSTLookup.
> > > In which jar Do I find FSTLookup? Does any of these lookup-classes
> > > allow case insensitive lookups? My terms are (unfortunately) cased.
> > >
> > > What Lookup "sits" behind this suggester
> > > http://search-lucene.com/m/586gA4ccL11
> > > here?
> > >
> > >
> > > > -----Urspr=C3=BCngliche Nachricht-----
> > > > Von: Dawid Weiss [mailto:dawid.weiss@gmail.com]
> > > > Gesendet: Donnerstag, 5. Mai 2011 15:00
> > > > An: java-user@lucene.apache.org
> > > > Betreff: Re: Using Solr's (Auto)suggest with plain lucene
> > > >
> > > > If you check out the source code of solr/lucene, look at FSTLookup
> > > > class
> > > and
> > > > FSTLookupTest -- you can populate FSTLookup manually with terms/
> > > > phrases from your index and then use the resulting automaton for
> > suggestions.
> > > >
> > > > Dawid
> > > >
> > > > On Thu, May 5, 2011 at 2:54 PM, Clemens Wyss
> > <clemensdev@mysign.ch>
> > > > wrote:
> > > >
> > > > > I have implemented my index (in fact it's a plugable indexing API=
)
> > > > > in "plain Lucene". It tried to implement a term suggestion
> > > > > mechanism on my own, being not to happy so far.
> > > > > At
> > > > > http://search-
> > > > lucene.com/m/0QBv41ssGlh/suggestion&subj=3DAuto+Suggest
> > > > > I have seen Solr's auto suggestion for search terms. Appart from
> > > > > not being "fuzzy" it looks quite promising.
> > > > >
> > > > > How easily can I Integrate Solr's suggestion with my Lucene index=
?
> > > > >
> > > > > Thx
> > > > > Clemens
> > > > >
> > > > > -----------------------------------------------------------------=
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> > > > > --- To unsubscribe, e-mail:
> > > > > java-user-unsubscribe@lucene.apache.org
> > > > > For additional commands, e-mail: java-user-help@lucene.apache.org
> > > > >
> > > > >
> > >
>

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