Re: [help-GIFT] Processing multiple-example-queries

[Henning Müller]

When using relevance feedback you should really use all feature groups 
and you will see that the results improve a lot, especially when using 
negative feedback. Positive feedback alone often only does a reordering 
of the first few images.

The color histogram is not very good for feedback. The color blocks by 
contrast are not extremely good for single-image queries but are getting 
much better when several images are fed back.

Cheers, Henning

Sailesh Suvarna wrote:

> Hello all,
>
> How does GIFT process multiple-example-queries? Does it combine the features to 
> form a single composite query?
>
> > From some preliminary experiments, using single-example queries always gave 
> > better results than using 2 and 3-example queries in terms of Interpolated
> Recall-Precsion and using only the  Global Colour Histogram feature.
>
> Sailesh Suvarna
>
>
>
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> help-GIFT mailing list
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>
>  

--
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Dr. Henning Müller
University Hospitals of Geneva
Division of Medical Informatics
21, rue Micheli-du-Crest
CH-1211 Geneva 4, Switzerland
Tel  +41 22 372-6175
Fax  +41 22 372-8680
email address@hidden