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From Ted Dunning <ted.dunn...@gmail.com>
Subject Re: Hadoop implementation of ParallelSGDFactorizer
Date Sat, 07 Sep 2013 19:42:25 GMT
That means "If I Recall Correctly".  It is an internet slang.

See also http://en.wiktionary.org/wiki/Appendix:English_internet_slang


On Sat, Sep 7, 2013 at 12:39 PM, Tevfik Aytekin <tevfik.aytekin@gmail.com>wrote:

> Sebastian, what is IIRC?
>
> On Sat, Sep 7, 2013 at 8:24 PM, Sebastian Schelter
> <ssc.open@googlemail.com> wrote:
> > IIRC the algorithm behind ParallelSGDFactorizer needs shared memory,
> > which is not given in a shared-nothing environment.
> >
> >
> > On 07.09.2013 19:08, Tevfik Aytekin wrote:
> >> Hi,
> >> There seems to be no Hadoop implementation of ParallelSGDFactorizer.
> >> ALSWRFactorizer has a Hadoop implementation.
> >>
> >> ParallelSGDFactorizer (since it is based on stochastic gradient
> >> descent) is much faster than ALSWRFactorizer.
> >>
> >> I don't know Hadoop much. But it seems to me that a Hadoop
> >> implementation of ParallelSGDFactorizer will also be much faster than
> >> the Hadoop implementaion of ALSWRFactorizer.
> >>
> >> Is there a specific reason for why there is no Hadoop implementation
> >> of ParallelSGDFactorizer? Is it because since Hadoop operations are
> >> already slow the slowness of ALSWRFactorizer does not matter much. Or
> >> is it simply because nobody has implemented it yet?
> >>
> >> Thanks
> >> Tevfik
> >>
> >
>

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