dsource and ranking vs. rating
Carlos Santander
csantander619 at gmail.com
Tue Apr 17 17:32:04 PDT 2007
Knud Soerensen escribió:
> In the tread DSSS, Dsource and cpan it have been suggested that dsource should
> implement a rating system like on the matlab site and the firefox extension site.
>
> I would like to suggest a ranking system instead of the rating system.
>
> In a ranking system every user have a list with rankings,
> when ranking a new project the user add it into the ranking between
> two other projects.
>
> Some of the problem i see with a rating system is:
>
> * Different users might use different bases.
> One user might examine code quality, user interface, documentation etc.
> and give 3 points on basis on this analyses.
> Another might just give 5 point to every project he likes.
> That a ranking system compare the project with each other help make a
> common basis for reference.
>
>
> * It difficult for a user to change his base.
> Imagine a user discover a new brilliant project
> that is much better than the project he already
> have rated with max points.
> To rate the new project fairly he would have
> to go back and re-rate all his rated projects.
> With ranking he can just put it at the top.
>
> * Low differentiation between top projects.
> Given most users only rating the projects they like.
> As a result,an extremely good and a very good project will have almost the same average score and
> the total sum will tell more about the popularity than how good it is.
>
>
> A advantages of the ranking system is that it provide
> much more data for data mining.
>
> Your can extract a value and make a simple average like with a ranking.
> Your can run most voting system on the data, but you also have data which can
> tell you that n users think that project x is better than project y. etc.
What would be more important in such a system, the absolute position or the
relative position?
Say I have rated 5 projects (A-E), and someone else has rated 10 (F-O). Has E
been ranked the same as J or as O?
--
Carlos Santander Bernal
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