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In response to Barry's question about recent work on recommender systems...

Chris Dellarocas at UMaryland's Smith School has done a lot in this area:

http://www.rhsmith.umd.edu/faculty/cdell/reputation.html

http://www.rhsmith.umd.edu/faculty/cdell/opinionforums.html

Best,
RL


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>Date:         Tue, 2 Jan 2007 09:46:15 -0500
>Reply-To: Barry Wellman <[log in to unmask]>
>Sender: Social Networks Discussion Forum <[log in to unmask]>
>From: Barry Wellman <[log in to unmask]>
>Subject: Re: Reccomender systems, etc.
>Comments: cc: communication and information technology section asa
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>*****  To join INSNA, visit http://www.insna.org  *****
>
>Ulrich, et al.
>
>Hal and Paul wrote their recommender systems article a long time ago, when
>people were more positive and less cynical about manipulation of such
>systems.* What's the latest research?
>
>*Note that Hal may have been the only non-cynical economist;-)
>
>Valdis Krebs is right: it's easy to spoof many systems.
>
>The ones I have been wondering about are YouTube, where "favorites" always
>seem to include atonal young teens: singing, or stripping or both. I may
>be naive, but I cannot believe that "cutie costume" or "my chemical
>romance on new year's eve"  -- both favorites at this moment -- really are
>getting 100s, 1000s, and even tens of 1000s of votes.
>
>Copying to the Communication & Info Tech section of the ASA, for their
>interest and input.
>  Barry Wellman
>  _____________________________________________________________________
>
>   Barry Wellman   S.D. Clark Professor of Sociology   NetLab Director
>   Centre for Urban & Community Studies          University of Toronto
>   455 Spadina Avenue    Toronto Canada M5S 2G8    fax:+1-416-978-7162
>   wellman at chass.utoronto.ca  http://www.chass.utoronto.ca/~wellman
>         for fun: http://chass.utoronto.ca/oldnew/cybertimes.php
>  _____________________________________________________________________
>
>
>On Tue, 2 Jan 2007, SOCNET automatic digest system wrote:
>
> > Date: Tue, 2 Jan 2007 00:00:24 -0500
> > From: SOCNET automatic digest system <[log in to unmask]>
> > Reply-To: Social Networks Discussion Forum <[log in to unmask]>
> > To: [log in to unmask]
> > Subject: SOCNET Digest - 31 Dec 2006 to 1 Jan 2007 (#2007-2)
> >
>
> > Date:    Mon, 1 Jan 2007 20:54:28 +0100
> > From:    Ulrik Brandes <[log in to unmask]>
> > Subject: Re: "People who viewed this item also viewed..." "People who 
> bought this item also bought..."
> >
> > *****  To join INSNA, visit http://www.insna.org  *****
> >
> > On Sun, Dec 31, 2006 at 03:19:55PM -0500, Valdis Krebs wrote:
> > > Been doing that for years, Bill...
> > >
> > > http://www.orgnet.com/booknet.html [1999!]
> > >
> > >
> > > On Dec 31, 2006, at 2:05 PM, Bill.Richards wrote:
> > > >An interesting approach to gathering network data?
> > > >
> > > >http://www.aggregateknowledge.com/index.html
> >
> > While I think Bill was referring to a particular data collection method,
> > for those interested in principles and techniques I'd recommend [sic]
> > to start looking at the vast literature on "recommender systems," or
> > "collaborative filtering" as a variant was called in 1992.
> >
> > An easy starter, cited several hundred times since, is
> >
> >   Paul Resnick and Hal R. Varian
> >   Recommender systems
> >   Communications of the ACM 40(3):56-58, 1997
> >   ACM Press
> >
> > Best regards,
> >
> > B.
> >
> >
>
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