lucene-java-user mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Lukas Michelbacher <miche...@ims.uni-stuttgart.de>
Subject Boolean retrieval
Date Sat, 04 Jul 2009 16:37:13 GMT

This is about an experiment comparing plain Boolean retrieval with
vector-space-based retrieval.

I would like to disable all of Lucene's scoring mechanisms and just
run a true Boolean query that returns exactly the documents that match a
query specified in Boolean syntax (OR, AND, NOT). No scoring or sorting
required.

As far as I can see, this is not supported out of the box.  Which classes
would I have to modify?

Would it be enough to create a subclass of Similarity and to ignore all 
terms but one (coord, say) and make this term return 1 if the query 
matches the document and 0 otherwise?

Lukas

--
Lukas Michelbacher
Institute for Natural Language Processing
Universit├Ąt Stuttgart
email: michells@ims.uni-stuttgart.de

Mime
View raw message