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Subject: Re: Relevancy Practices
From: Grant Ingersoll <gsingers@apache.org>
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Date: Wed, 5 May 2010 07:08:41 -0700
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On May 2, 2010, at 5:50 AM, Avi Rosenschein wrote:

> On 4/30/10, Grant Ingersoll <gsingers@apache.org> wrote:
>>=20
>> On Apr 30, 2010, at 8:00 AM, Avi Rosenschein wrote:
>>> Also, tuning the algorithms to the users can be very important. For
>>> instance, we have found that in a basic search functionality, the =
default
>>> query parser operator OR works very well. But on a page for advanced
>>> users,
>>> who want to very precisely tune their search results, a default of =
AND
>>> works
>>> better.
>>=20
>> Avi,
>>=20
>> Great example.  Can you elaborate on how you arrived at this =
conclusion?
>> What things did you do to determine it was a problem?
>>=20
>> -Grant
>=20
> Hi Grant,
>=20
> Sure. On http://wiki.answers.com/, we use search in a variety of
> places and ways.
>=20
> In the basic search box (what you get if you look stuff up in the main
> Ask box on the home page), we generally want the relevancy matching to
> be pretty fuzzy. For example, if the user looked up "Where can you see
> photos of the Aurora Borealis effect?" I would still want to show them
> "Where can you see photos of the Aurora Borealis?" as a match.
>=20
> However, the advanced search page,
> http://wiki.answers.com/Q/Special:Search, is used by advanced users to
> filter questions by various facets and searches, and to them it is
> important for the filter to filter out non-matches, since they use it
> as a working page. For example, if they want to do a search for "Harry
> Potter" and classify all results into the "Harry Potter" category, it
> is important that not every match for "Harry" is returned.

I'm curious, Avi, if you can share how you came to these conclusions?  =
For instance, did you have any qualitative evidence that "fuzzy" was =
better for the main page?  Or was it a "I know it when I see it" kind of =
thing.


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