Check out booleanfilter in contrib/queries. It can be wrapped in a constantScoreQuery
On 4 Jul 2009, at 17:37, Lukas Michelbacher <
michells@...> wrote:
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
Universität Stuttgart
email:
michells@...
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