> hm...try tat...but doesn't seems to be working for me though
Discarding lengthNorm didn't work for you. Very interesting. I am not sure but
I think inverse document frequency causing problem to you. Probably one of
query word (very common word) has high document frequency, and the docs having
other query words are getting higher rank. Or one your query word (very rare
word) has very small document frequency, and docs having only that word are
getting higher rank.
You can override another method (idf) of Similarity to ignore idf as well as
lengthNorm.
public float idf(int docFreq, int numDocs) {
return 1.0f;
}
public float lengthNorm(String fieldName, int numTerms) {
return 1.0f;
}
Ofcourse this modifications will cause some side-effects but probably you will
see all of your query words in the first document. If such document exists in
your index. Can you confirm this by ANDing all of your query words and look if
you are getting results? Please let me know if this works for you.
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