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From Paul Libbrecht <p...@activemath.org>
Subject Re: filtering on searching or after through hits?
Date Tue, 26 Jul 2005 07:15:03 GMT
But filters are in-memory biests so have to be recomputed every-time... 
what would be the best approach:
- store the filter (that shouldn't be very expensive but I never tried)
- modify the index to add a flag ?
Say, for now, my filter contains 70% of the documents.

thanks

paul


Le 25 juil. 05, à 18:40, Riccardo Daviddi a écrit :

> ok:)
> so I do this "filtering" on the hits.
> thx
>
> On 7/25/05, Erik Hatcher <erik@ehatchersolutions.com> wrote:
>>
>> On Jul 25, 2005, at 7:05 AM, Riccardo Daviddi wrote:
>>> Hi all,
>>> I have to filter my searching in two ways:
>>> 1) by score, I want that only docs with score higher than a threshold
>>> are returned.
>>> 2) by num of docs, I want that only, for example, the first 20 docs
>>> are returned.
>>>
>>> It's better do it with a queryfilter or search for all and after look
>>> through the hits with some conditions?
>>
>> A QueryFilter can do neither of these criteria.  I recommend simply
>> doing a search and limiting the Hits shown based on the desired
>> criteria.
>>
>>      Erik
>>
>>
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>
>
> -- 
> Riccardo Daviddi
>
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