[KinoSearch] get doc/query similarity

[Marvin Humphrey]

On Apr 16, 2008, at 7:43 AM, jack_tanner at yahoo.com wrote:

> Will do, and thanks for your time and advice. I still think it'd be  
> nice if KS exposed such a similarity computation via the API; it'd  
> be much more efficient that way.

I agree, and I would have liked to have discussed that.  Had you not  
been constrained by having to use the maint branch, I might have  
steered things in that direction.

A lot of best work on KS, both high-level design and low-level code,  
has arisen from collaborations between myself and someone who has an  
itch to scratch.  I'm always on the lookout for such potential partners.

In your case, though, my impression was that you were quite  
knowledgeable, but that your project did not need the devel branch  
badly enough to guarantee sustained momentum over the course of what  
would likely be a drawn-out design discussion.

Exposing similarity measures would be superficially easy -- all the  
relevant material is in KinoSearch::Search::Similarity.  However, the  
actual APIs to interface with the math in Similarity are internal and  
not set up for use the way you described your needs.  The bigger  
problems were how to get at "an indexed document", how to list its  
terms, and so on, outside of the context of the existing search API.

Marvin Humphrey
Rectangular Research
http://www.rectangular.com/


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