There have been off and on discussions of this for some time. Mahout was intended to be (a) extensible and (b) focussed more on sparse matrices. This means that adding new implementations such as you suggest is quite feasible and may be quite a speedup.
If you search the email archives [1] for jblas you will likely find some of the discussions I mean. I seen no JIRA entries [2] at this time to address your thoughts. [1] http://bit.ly/mahout-mailing-list-jblas [2] http://bit.ly/mahout-issues-with-jblas [3] https://mahout.apache.org/users/sparkbindings/home.html On Sun, Sep 14, 2014 at 10:11 AM, Murariu Fabian <[email protected]> wrote: > Hi, > > I'm quite new to the mahout source code and as I see the current matrix > implementation is rather inefficient since double dimensional arrays in > java are not continuously allocated. Are there any plans to use some > external matrix implementation? Am I looking in the wrong place? Is this a > good place to start if I want to implement a different kind of dense > matrix? > > Best regards, > Fabian >
