Hi Luke; thanks for the explanation. I've signed up on the dev list, and
will keep an eye on INewsRatingService.
Once there are a large number of users, it might be cool to try different
weighting algorithm tweaks on random groups of users, measure the usage
trending, pick the best, and apply that feedback to the ratings engine.
Thanks again.
Matt
On Mon, Mar 30, 2009 at 10:40 AM, Luke Tucker <[email protected]> wrote:
>
> I'll note that we're not doing proper collaborative filtering yet... but
> melkjug does do a lot of offline/background processing that happens
> periodically and some that is farmed out in response to certain user
> requests. We take pains to make sure that for large instances this work can
> happen in separate services / servers -- for lighter
> instances run with paster, the work is just executed by threadpools in the
> web server process. That said, I'm not sure I would say that processor load
> has been mitigated -- we're still definitely figuring it out as we go and
> the load can get quite painful even if nobody is looking... :)
>
> - Luke
>
> On Mar 30, 2009, at 11:04 AM, Douglas Mayle wrote:
>
> Thanks a lot, Matt! I had fun giving it
> I'm actually not the best person to ask, as my contributions to melkjug
> have been pretty minimal. I gave the talk because the rest of the team
> couldn't make it to pycon. I've included CC'ed Luke Tucker, mekjug's evil
> genius, and he should be able to answer this.
>
> Doug
>
> On Mar 30, 2009, at 2:22 AM, Matt Barkau wrote:
>
> Hi Doug!
> I had to head back home this evening, but had a couple questions on Melkjug
> architecture - by the way, that was the funniest talk I heard this year.
> (Runner up was the assertion that "backslashes are evil because they have
> goatees, and goatees are, of course, evil". Probably not funny without the
> supporting slides, though.)
>
> Anyway,,, for Melkjug's collaborative filtering, how did you mitigate the
> processor requirements for that extra computation (more than typical
> webserver load)? Or was it actually not a big server hit? Does that work
> run only nightly? Is there some other black art which made this a light
> load?
>
> I ask because I'm in the very early stages of planning an independent
> personal health ~forum which will attempt to ontologically bridge western
> and eastern health care - launchpad.net/selfhealth . It's planned to be on
> Plone, using OpenPlans, at selfhealth.org.
>
> Thanks much!
>
>
