Re: Boolean retrieval

>
> 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@...
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: java-user-unsubscribe@...
> For additional commands, e-mail: java-user-help@...
>
>
>
>      
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: java-user-unsubscribe@...
> For additional commands, e-mail: java-user-help@...
>
>
>