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From Paul Libbrecht <>
Subject Re: AW: Concept Expansion
Date Sat, 05 Sep 2009 21:03:34 GMT

we're doing a similar process on i2geo search, including simple  
language expansion (one word is queried in several fields of each  
language), and, though I haven't made it yet but will soon, I've been  
suggested to do it as qparser plugin.


Le 05-sept.-09 à 22:47, Villemos, Gert a écrit :

> [Sorry, post submitted as HTML. Proper format below;]
> We would like to support concept expansion in searches, i.e. when a  
> user searches for 'software' then the system should also search for  
> keywords / phrases such as program, computer , system, package and  
> class.
> I imagine that the right way of doing this is a request handler,  
> which expands a query into its conceptual similar entries and  
> aggregates the results. A simple change in the filter from;
> q:software => q:software OR program OR computer OR system OR package
> would most likely do the job.
> Does such a request handler already exist (... looking at the list  
> on the wiki and in the javadocs the answer seems to be no, but maybe  
> its maintained externally)?
> And is this the right way to go at all?
> Thanks,
> Gert.

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