Re: [infomap-nlp-users] Upper case chars / Limitation of columns

[Tonio W. <ton...@un...>]

Hello,

well, congratulations to your daughter, Dominic! I can deeply imagine tha=
t
you are now occupied by more important things than software maintenance...

Thanks for your advice concerning my questions. Indeed, there is a
built-in limit to 3000, and I did not dare to modify it. However, I don't
see why, (using Michael Berry's GTP) I applied SVD to much larger matrice=
s
(~120.000 cols). I will try that out and I'll let you know about my
results.

Best wishes,

Tonio

>
> Hi Tonio, David and Dominic,
>
> On Sat, 15 Jul 2006, Dominic Widdows wrote:
>
>> I agree with the solutions you posted below, couldn't have done better
>> myself. It's possible to set COLUMNS in the default-params file, I
>> don't know of any flag that prevents the number from being greater tha=
n
>> 2999. Nor do I know off hand whether the matrix format in memory is
>> scalable enough to handle a full term-by-term matrix. But this is
>> certainly the place to begin looking.
>
> The SVD interface sets a limit on the number of columns:
>    #define NMAX    3000    /* bound on ncol, order of A          */
>    (it's in infomap-nlp/svd/svdinterface/las2.c)
>
> I don't know whether this line is part of the original SVDPACKC
> package (which was developed at the University of Tennesse and not by t=
he
> infomap project). It probably is. You can try increasing the limit and
> see if the singular value decomposition is still successful.
>
> Good luck!
> Beate
>
>


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