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From "Vishal Bathija" <vishalbath...@gmail.com>
Subject Re: Not able to retrieve hits for a phrase
Date Mon, 17 Apr 2006 15:33:16 GMT
Hi Erik,
Thanks, that seemed to have solved the problem. Can you please
elaborate on the kind of input PhraseQuery takes in. Am I supposed to
add only lowercased terms to PhraseQuery. Is it possible to search for
a phrase that is not case sensitive?

Regards
Vishal

On 4/17/06, Erik Hatcher <erik@ehatchersolutions.com> wrote:
> Are the terms you're adding to PhraseQuery lowercased?  If not, then
> that is most likely the issue.
>
>        Erik
>
>
> On Apr 17, 2006, at 9:39 AM, Vishal Bathija wrote:
>
> > I currently use
> > writer = new IndexWriter("index", new StandardAnalyzer(),true);
> >
> > Should I use any other analyzer. Yes I am aware that the matches are
> > case sensitive.
> >
> > Regards
> > Vishal
> >
> > On 4/17/06, Erik Hatcher <erik@ehatchersolutions.com> wrote:
> >> This could be related to the analyzer you used during indexing.  Be
> >> aware that matches are *exact* including case.
> >>
> >>        Erik
> >>
> >> On Apr 17, 2006, at 1:34 AM, Vishal Bathija wrote:
> >>
> >>> Hi,
> >>> I am not able to retrieve the number of hits for a particular
> >>> phrase .
> >>> The code below retrieves the hits only for certain phrases. The code
> >>> snippet that I use is
> >>>
> >>> rd= IndexReader.open("C:\\Documents and Settings\\Owner\\My
> >>> Documents\\Thesis\\luceneTest\\index");
> >>> PhraseQuery query =new PhraseQuery();
> >>> searcher = new IndexSearcher(rd);
> >>> Term[] phrTerm=new Term[phraseTerms.length];
> >>> for(int u=0; u<phraseTerms.length;u++)
> >>>  {
> >>>   phrTerm[u]=new Term("contents",phraseTerms[u]);
> >>>  query.add(phrTerm[u]);
> >>>   }
> >>>
> >>> System.out.println("Query"+query.toString() );
> >>> Hits hits = searcher.search(query);
> >>> System.out.println("Number of hits :"+hits.length());
> >>>
> >>> Number of hits is 0 for some phrases even though the phrase is
> >>> present
> >>> in some of the documents.
> >>>
> >>> This retrieves the hits for certain phrases such as
> >>>
> >>> "avoids deadlock" but it does not work for a phrase such as
> >>> "Prevents Data Loss"
> >>>
> >>>
> >>> I am not sure what the problem could be as none of these phrases
> >>> have
> >>> any special characters.  Do I need to use any other type of query?
> >>>
> >>>
> >>> Regards
> >>> Vishal
> >>> --
> >>> Vishal Bathija
> >>> Graduate Student
> >>> Department of Computer Science & Systems Analysis
> >>> Miami University
> >>> Oxford,Ohio
> >>> Phone: (513)-461-9239
> >>>
> >>> --------------------------------------------------------------------
> >>> -
> >>> 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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> >>
> >>
> >
> >
> > --
> > Vishal Bathija
> > Graduate Student
> > Department of Computer Science & Systems Analysis
> > Miami University
> > Oxford,Ohio
> > Phone: (513)-461-9239
> >
> > ---------------------------------------------------------------------
> > 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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>
>


--
Vishal Bathija
Graduate Student
Department of Computer Science & Systems Analysis
Miami University
Oxford,Ohio
Phone: (513)-461-9239

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