MoreLikeThis needs to find the terms in your doc. It tries to do this by using
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 reanalysing the
content of the document usings an analyser (despite what the javadocs for the
setAnalyzer method say about not needing to set an analyzer when MoreLiking an
existing document).
So your options are probably to re-index with term vectors turned on or set an
appropriate choice of analyzer.
Cheers,
Mark
(only 3 days to go until Tom Roberts is back in the office! )
----- Original Message ----
From: davood <[EMAIL PROTECTED]>
To: java-user@lucene.apache.org
Sent: Saturday, 30 August, 2008 7:05:35
Subject: MoreLikeThis return no results
Hi,
I'm trying to get MoreLikeThis working but it just returns no results. I
have lucene working for normal queries and indexing but MoreLikeThis Just
returns nothing. This is what I'm trying
IndexReader reader = IndexReader.open(INDEX_PATH);
IndexSearcher searcher = new IndexSearcher(INDEX_PATH);
MoreLikeThis likeThis = new MoreLikeThis(reader);
likeThis.setFieldNames(new String[] { "tag" ,"tit"});
Query likesQuery = likeThis.like(170); // document number I already
retrieved by hits.id(0)
Hits likesHits = searcher.search(likesQuery);
It find nothing similar
Btw I've noticed similarity contributed package inside of lucene contains
nothing (a jar file with a license text file and another text file), I've
tried donloading it from subversion but there was no java class there, So I
had to get it from another web site. Why it's removed from subversion?
http://svn.apache.org/repos/asf/lucene/java/trunk/contrib/similarity/src/java/org/apache/lucene/search/similar/
Best.
--
View this message in context:
http://www.nabble.com/MoreLikeThis-return-no-results-tp19230752p19230752.html
Sent from the Lucene - Java Users mailing list archive at Nabble.com.
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