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From Chen_1st <>
Subject Re: Two learning competitions that might be of interest for Mahout
Date Tue, 15 Feb 2011 11:19:37 GMT
Hi, Markus,

I am curious why the competition still tries to predict the rating
values, now that top k recommendation is more practical in real life
applications, and it's illustrated by many papers that rating value
prediction is not so useful for discovery of top k items.

Best Regards.


2011/2/12, Markus Weimer <>:
> Hi,
> go for it! I'd do it myself but the rules we wrote prohibit me from
> doing so ;-)
> Take care,
> Markus
> On 2/11/11 4:36 AM, Sean Owen wrote:
>> While I may not spend time trying to win the first one, I'd be happy
>> to run it through what we have so far and enter the results. It would
>> be an interesting benchmark.
>> On Fri, Feb 11, 2011 at 12:26 PM, Isabel Drost <> wrote:
>>>> KDD-Cup 2011: Recommending Music Items based on the Yahoo! Music
>>>> Dataset We challenge participants to identify user tastes in music by
>>>> analyzing real ratings of Yahoo! Music anonymized users. The dataset
>>>> represents a snapshot of the community's preferences for various
>>>> musical items.
>>>> The goal of the prize is to develop a predictive algorithm that can
>>>> identify patients who will be admitted to the hospital within the
>>>> next year, using historical claims data.
>>> Isabel

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