hi all,
i got the similarity score 0.3044460713863373 between two docs which have the
same text content, is it correct? I expected 1.0, hier is my result line:
doc:"this expression of galectin-1 in blood vessel walls was correlated with
vascular"
doc2 :"this expression of galectin-1 in blood vessel walls was correlated with
vascular" Score :"0.3044460713863373"
is the score correct?
my methode is :
public double getSimilarity(String v1,String v2) throws Exception
{
float result=0;
directory = new RAMDirectory();
Analyzer analyzer = new StandardAnalyzer();
IndexWriter writer = new IndexWriter(directory, analyzer,
true, IndexWriter.MaxFieldLength.LIMITED);
Document doc1 = new Document();
doc1.add(new Field("term",v1, Field.Store.YES, Field.Index.TOKENIZED));
writer.addDocument(doc1);
writer.close();
IndexReader ir=IndexReader.open(directory);
IndexSearcher searcher = new IndexSearcher(directory);
Query query=SimilarityQueries.formSimilarQuery(v2,analyzer,"term",null);
ScoreDoc[] scoreDocs = searcher.search(query,5).scoreDocs;
int docNum = scoreDocs[0].doc;
result = scoreDocs[0].score;
Document hitDoc = searcher.doc(docNum);
System.out.println("Term 1 :"+v2+" Term2:"+hitDoc.get("term")+" Score
:"+result);
return result;
}
please help.
thanks in advance.
Kamal
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