AmazonBinary 
Added: Tuesday, March 10, 2009 by Yihua Chen - University of Washington
        Tags: Asymmetric, Indefinite, Small, Sparse
  Mirex07 
Added: Thursday, November 06, 2008 by Eric Garcia - University of Washington
        Tags: Audio, Sparse, Symmetric
  Amazon47 
Added: Tuesday, May 27, 2008 by Eric Garcia - University of Washington
        Tags: Asymmetric, Indefinite, Small, Sparse