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From Ted Dunning <ted.dunn...@gmail.com>
Subject Re: RandomUtils.useTestSeed() - Taste libraries
Date Tue, 15 Dec 2009 20:16:14 GMT
Sean,

Remember my grumpiness about not having full injection of the random number
generator?

That would help here.

On Tue, Dec 15, 2009 at 11:19 AM, Sean Owen <srowen@gmail.com> wrote:

> It's hard to guarantee since, if you switch in another implementation
> that also uses the random number generator, then it will still change
> the samples that are taken.
>
> If you're concerned about this I would suggest running tests over more
> data, or running more iterations, in order to obtain a more reliable
> result. The sampling shouldn't make a significant difference.
>
> On Tue, Dec 15, 2009 at 7:15 PM, jamborta <jamborta@gmail.com> wrote:
> >
> > in this case i try to evaluate an algorithm and tune some parameters, but
> if
> > I don't know that I use the same
> > trainging/test set, it's hard to compare the results. I guess I could
> keep
> > track of how many times I called
> > the method, but that would make it complicated to administer.
> >
> >
> >
> > srowen wrote:
> >>
> >> No, do you really need to do this though?
> >> It's possible to add a method to do this but I'm curious about the use
> >> case, whether we can come up with another way to solve your issue.
> >>
> >> On Tue, Dec 15, 2009 at 6:23 PM, jamborta <jamborta@gmail.com> wrote:
> >>>
> >>> thanks. so it's not possible to reset the seeds? or start with new
> ones?
> >>
> >>
> >
> > --
> > View this message in context:
> http://old.nabble.com/RandomUtils.useTestSeed%28%29---Taste-libraries-tp26799137p26800133.html
> > Sent from the Mahout User List mailing list archive at Nabble.com.
> >
> >
>



-- 
Ted Dunning, CTO
DeepDyve

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