On Fri, Sep 7, 2012 at 12:48 AM, Ted Dunning ted.dunn...@gmail.com wrote:
This sounds pretty exciting. Beyond that, it is hard to say much.
Can you say a bit more about how you would see introducing the code into
Mahout?
Ted, I've forked apache/mahout at github, and I will merge the
Regarding SSVD + clustering
I tried the command line version of kmeans on U*Sigma and don't get row IDs in
clusteredPoints there either. Using the command line kmeans on the input matrix
A does generate row IDs. There must be some difference in the two that causes
this to happen.
I used
Hi all,
I'm trying to set all values of a SparseMatrix structure using multiple threads
but I'm getting an error of ArrayIndexOutBoundsException even when access
indexes are correct. In fact, when I subtitude SparseMatrix structure for a
double array I didn't get any error.
Does any one have
You are using lots of threads but the sparse matrix structure is not thread
safe. Setting a value in the SparseMatrix causes mutation to internal data
structures.
If you can have each thread do all the updates for a single thread, that
would be much better. Another option is to synchronize on
Great.
If the update has a huge impact on existing code, can you break it into
manageable pieces?
If it is just an addition, having a big blob of stuff is probably fine.
On Sun, Sep 9, 2012 at 7:01 AM, Gokhan Capan gkhn...@gmail.com wrote:
On Fri, Sep 7, 2012 at 12:48 AM, Ted Dunning
