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List:       lucene-user
Subject:    Re: Collaborative Filtering API
From:       "Steven J. Owens" <puffmail () darksleep ! com>
Date:       2003-11-26 20:34:27
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On Tue, Nov 25, 2003 at 01:18:19PM -0500, Michael Giles wrote:
> Yes, he was the lead Ph.D. student on the GroupLens project at Minnesota.

     I've actually worked on a system that bundled GroupLens.  I think
it was Vignette StoryServer.  The Vignette docs were incredibly dense
with MarketingNewSpeak, so I could never quite figure out what they
said GroupLens actually *did* (not at a web-capable terminal right
now, or I'd just google it).

     Collaborative filtering in general is a topic I'm interested in,
and is why I first got into Lucene.  I wanted and still want to build
a collaborative filtering search engine for mailing lists and the
like.

     I do remember that FireFly's engine was supposed to graph all of
the users' ratings on a topic in an N-dimensional space, and then find
users "close" to the same user in that N-dimensional space, and
suggest topics that they'd liked, but that the current user hadn't
rated.

     I'm interested in more of a "free market" sort of approach than
in statistical analysis; I want to build a system that helps usrs
express their opinions, then nurture an emerging consensus.  My
experience has been that systems that systems/technologies that try to
facilitate the way users already do things, instead of replacing them
with new ways of doing things, tend to work better.

-- 
Steven J. Owens
puff@darksleep.com

"I'm going to make broad, sweeping generalizations and strong,
 declarative statements, because otherwise I'll be here all night and
 this document will be four times longer and much less fun to read.
 Take it all with a grain of salt." - Me at http://darksleep.com


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