1 Carnegie Mellon University
1 Massachusetts Institute of Technology
1 Stanford University
1 University of California--Berkeley
5 Cornell University
5 University of Illinois--Urbana-Champaign
7 University of Washington
8 Princeton University
8 University of Texas--Austin
10 Georgia Institute of Technology
11 California Institute of Technology
11 University of Wisconsin--Madison
13 University of Michigan--Ann Arbor
14 University of California--Los Angeles
14 University of California--San Diego
14 University of Maryland--College Park
17 Columbia University
17 Harvard University
17 University of Pennsylvania
20 Brown University
20 Purdue University--West Lafayette
20 Rice University
20 University of Massachusetts--Amherst
20 University of North Carolina--Chapel Hill
20 University of Southern California
20 Yale University
