sparse matrix regression

[James Leszczenski <jleszcze@andrew.cmu.edu>]

Hi-

   Is there any tool available for more efficient regression techniques 
on large sparse matrices?  I'm attempting to perform logistic regression 
on a 360,000x1,028 matrix, and even with the Big Data Library, this is 
approaching intractability. Most entries in the matrix will be 0, but 
simply having a concise representation won't help, if I can't save some 
computation by representing it as such.
Thanks,
   James