Re: Is Mahout obsolete now?

I am now curious to know if Spark or Mahout is Out-Of-Core or In-Core solution ? Specifically, for matrix multiplication and factorization. thanks, canal On Tuesday, October 20, 2015 6:37 AM, Dmitriy Lyubimov wrote: On Mon, Oct 19, 2015 at 3:29 PM, Pat Ferrel

Re: matrix inversion in plan ?

priate at large scale? Is this a stable computation? On Sun, Oct 4, 2015 at 11:18 PM, go canal <goca...@yahoo.com.invalid> wrote: > I will be more than interested to extend to complex double, when the > solver is ready for double data type.  thanks, canal > > >      On Mond

Re: Exception in thread "main" java.lang.IllegalArgumentException: Unable to read output from "mahout -spark classpath"

if so check to see if you env matches in Eclipse. Also what are you trying to do? I have some example Spark Context creation code if you are using Mahout as a Library. On Oct 3, 2015, at 2:14 AM, go canal <goca...@yahoo.com.INVALID> wrote: Hello,I am running a very simple Mahout

Re: matrix inversion in plan ?

I will be more than interested to extend to complex double, when the solver is ready for double data type.  thanks, canal On Monday, October 5, 2015 2:02 PM, Ted Dunning <ted.dunn...@gmail.com> wrote: On Sun, Oct 4, 2015 at 10:32 PM, go canal <goca...@yahoo.com.inval

Re: Exception in thread "main" java.lang.IllegalArgumentException: Unable to read output from "mahout -spark classpath"

se. So something is missing in your env in Eclipse. Does `mahout -spark classpath` run in a shell, if so check to see if you env matches in Eclipse. Also what are you trying to do? I have some example Spark Context creation code if you are using Mahout as a Library. On Oct 3, 2015, at 2:14 AM, go

Re: matrix inversion in plan ?

serious error. > > Are you sure you don't want a matrix solver instead? > > Sent from my iPhone > > > On Oct 3, 2015, at 20:09, go canal <goca...@yahoo.com.INVALID> wrote: > > > > oh, it is so unfortunate that the first step of my project requires the inversi

Re: matrix inversion in plan ?

<amcint...@appcomsci.com> wrote: 1) Is m sparse? 2) Once you have computed "inverse", what are you going to do with it? On 10/04/2015 10:31 PM, go canal wrote: > Thank you all, the solver is something like this, am I correct: > Matrix m = > Matrix inverse = new QRD

Re: matrix inversion in plan ?

ulting degradation in performance would be dramatic and thus unacceptable to most users. On Fri, Oct 2, 2015 at 8:47 PM, go canal <goca...@yahoo.com.invalid> wrote: > HiI saw some distributed matrix functions included in Samsara now. > Wondering if we have a plan to support matrix in

Re: Matrix inverse

Lyubimov dlie...@gmail.com wrote: Do you mean in core matrix inversion? It is supported via solve. Actually it is supported both in Java and Scala. On Aug 5, 2015 9:11 PM, go canal goca...@yahoo.com.invalid wrote: Hello,I am new to Mahout. Would appreciate if someone could tell me if matrix

Re: Matrix inverse

I found one message posted before - is this the solution: Matrix inverse = new QRDecomposition(a).solve(new DiagonalMatrix(n)) thanks, canal On Tuesday, August 11, 2015 12:20 PM, go canal goca...@yahoo.com.INVALID wrote: 'in core' as in whole matrix loaded into memory ? I am

Matrix inverse

Hello,I am new to Mahout. Would appreciate if someone could tell me if matrix inverse is still supported in the latest release (0.10) ? I thought it was supported in the earlier release, for example, 0.3, in the class   org.apache.mahout.math.matrix.linalq.Algebra ? thanks, canal