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Date: Sat, 30 Aug 2008 09:50:29 +0000 (GMT)
From: mark harwood <markharw00d@yahoo.co.uk>
Subject: Re: MoreLikeThis return no results
To: java-user@lucene.apache.org
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Message-ID: <834486.5819.qm@web26005.mail.ukl.yahoo.com>

MoreLikeThis needs to find the terms in your doc. It tries to do this by us=
ing TermFreqVectors which are stored in the index if you choose to add them=
 at  index-time. If you haven't done this then it will fall back to reanaly=
sing the content of the document usings an analyser (despite what the javad=
ocs for the setAnalyzer method  say about not needing to set an analyzer wh=
en MoreLiking an existing document).=0A=0ASo your options are probably to r=
e-index with term vectors turned on or set an appropriate choice of analyze=
r.=0A=0ACheers,=0AMark=0A(only 3 days to go until Tom Roberts is back in th=
e office! )=0A=0A=0A=0A----- Original Message ----=0AFrom: davood <dave.fet=
@gmail.com>=0ATo: java-user@lucene.apache.org=0ASent: Saturday, 30 August, =
2008 7:05:35=0ASubject: MoreLikeThis return no results=0A=0A=0AHi,=0A=0AI'm=
 trying to get MoreLikeThis working but it just returns no results. I=0Ahav=
e lucene working for normal queries and indexing but MoreLikeThis Just=0Are=
turns nothing. This is what I'm trying=0A=0A=0AIndexReader reader =3D Index=
Reader.open(INDEX_PATH);=0AIndexSearcher searcher =3D new IndexSearcher(IND=
EX_PATH);=0AMoreLikeThis likeThis =3D new MoreLikeThis(reader);=0AlikeThis.=
setFieldNames(new String[] { "tag" ,"tit"});=0AQuery likesQuery =3D likeThi=
s.like(170); // document number I already=0Aretrieved by hits.id(0) =0AHits=
 likesHits =3D searcher.search(likesQuery);        =0AIt find nothing simil=
ar=0A=0ABtw I've noticed similarity contributed package inside of lucene co=
ntains=0Anothing (a jar file with a license text file and another text file=
), I've=0Atried donloading it from subversion but there was no java class t=
here, So I=0Ahad to get it from another web site. Why it's removed from sub=
version?=0Ahttp://svn.apache.org/repos/asf/lucene/java/trunk/contrib/simila=
rity/src/java/org/apache/lucene/search/similar/=0A=0ABest.=0A-- =0AView thi=
s message in context: http://www.nabble.com/MoreLikeThis-return-no-results-=
tp19230752p19230752.html=0ASent from the Lucene - Java Users mailing list a=
rchive at Nabble.com.=0A=0A=0A---------------------------------------------=
------------------------=0ATo unsubscribe, e-mail: java-user-unsubscribe@lu=
cene.apache.org=0AFor additional commands, e-mail: java-user-help@lucene.ap=
ache.org=0A=0ASend instant messages to your online friends http://uk.messen=
ger.yahoo.com 

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