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Ex Libris Recommender January 23, 2009

Posted by Andre Vellino in CISTI, Collaborative filtering, Data Mining, General, Recommender, Recommender service.
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ex-librisIt’s gratifying to learn from Richard that the library product and solutions vendor Ex Libris has developed a recommender for scholarly articles named “bX”.  The announcement says:

bX is the result of years of collaboration and research conducted by leading researchers Johan Bollen and Herbert Van de Sompel from the Los Alamos National Laboratory.

Which bodes well for its credentials!  bX data-mines log files from link resolvers:

The bX service derives its recommendations from the analysis of tens of millions of transactions performed by users from research institutions worldwide and captured through a large-scale aggregation of link resolver usage logs.

So it probably uses only Collaborative Filtering rather than a hybrid (content-based) scheme.  It probably doesn’t use citations either.

Not having seen a link resolver log, I don’t know if there’s user-identity information to be found there beyond the IP address.  If there isn’t that could muddy the waters somewhat. Librarians (with the same IP address) often act on behalf of a wide variety of end-users which could lead to rather meaningless serendipity in the recommendations.

The blog for future announcements is here: http://bxbeta.blogspot.com/

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