Grokbase Groups Perl ai August 2001
FAQ
I've been sitting here trying to checkout my purchases at amazon.com
for the last 30 minutes now and every time I'm about to log out, some
new Perl/Apache book catches my eye in the sidebar and I end up
adding it to my cart too... I hope to be checked out by noon at this
rate. :)

Amazon.com uses Perl heavily, but the exact technologies behind their
unrivaled personalization engine are of course not disclosed.

Would anyone care to hypothesize how one might architect such a
personalization server using open-source Perl modules?

I guess it just boils down to making weighted correlations between
the categories that they have for products and member-created lists
and your frequency of searching for and buying things within those
categories.

I consider this topic to be somewhere between informatics and AI, so
I hope this isn't considered too off-thread.

--

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  • Jesús Quiroga at Aug 28, 2001 at 10:37 pm

    At 18:57 28/08/2001, you wrote:
    I've been sitting here trying to checkout my purchases at amazon.com for
    the last 30 minutes now and every time I'm about to log out, some new
    Perl/Apache book catches my eye in the sidebar and I end up adding it to
    my cart too... I hope to be checked out by noon at this rate. :)

    Amazon.com uses Perl heavily, but the exact technologies behind their
    unrivaled personalization engine are of course not disclosed.

    Actually they disclosed something. You will be interested in these US
    patents granted to Amazon.

    -US6266649: Collaborative recommendations using item-to-item similarity
    mappings
    http://www.delphion.com/details?pn=US06266649__

    -US6064980: System and methods for collaborative recommendations
    http://www.delphion.com/details?pn=US06064980__
  • Kevin Watt at Aug 29, 2001 at 4:38 am
    Hi All,

    I was going to avoid talking, because I can't remember the name for this
    exactly, but its a pretty basic AI principle. I had a good time talking
    about it with a nice guy over the lunch break from the IJCAI conference that
    was in Seattle not too long ago.

    Basically, you take a set of one users's choices on something. You then
    check for other people that have rated several of the same items, and give
    them an index based on whether they agree with that user or not on the rated
    items they share. Then, you might want to normalize that users choices, as
    some people just like everything :) Next, you pick some of the most similar
    ones, grow their result to items that our target user hasn't seen yet, and
    return those results in order of (user_index * user_rating). Viola!

    I can't believe we give people patents on these things. Next think you know
    they'll have the left human leg patented, and will be wanting money every
    time I take a step...

    Ciao,
    Kevin
    --------------
    Kevin Watt, AllPoetry.com Community manager: Poets Unite!
    kevin@allpoetry.com <http://allPoetry.com>
    "Here, write it, or it will be erased by the wind." - Isabel Allende

    -----Original Message-----
    From: Jesus Quiroga
    Sent: Tuesday, August 28, 2001 3:34 PM
    To: Terrence Monroe Brannon
    Cc: perl-ai@perl.org
    Subject: Re: Perl Personalization Engines

    At 18:57 28/08/2001, you wrote:
    I've been sitting here trying to checkout my purchases at amazon.com for
    the last 30 minutes now and every time I'm about to log out, some new
    Perl/Apache book catches my eye in the sidebar and I end up adding it to
    my cart too... I hope to be checked out by noon at this rate. :)

    Amazon.com uses Perl heavily, but the exact technologies behind their
    unrivaled personalization engine are of course not disclosed.

    Actually they disclosed something. You will be interested in these US
    patents granted to Amazon.

    -US6266649: Collaborative recommendations using item-to-item similarity
    mappings
    http://www.delphion.com/details?pn=US06266649__

    -US6064980: System and methods for collaborative recommendations
    http://www.delphion.com/details?pn=US06064980__

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