2001-2005 2002-2006 33 Carnegie Mellon University 41 Carnegie Mellon University 32 Stanford University 37 Stanford University 29 University of California, Berkeley 29 University of California, Berkeley 19 IBM Research, US 19 IBM Research, US 19 Massachusetts Institute of Technology 19 Purdue University 16 University of Michigan, Ann Arbor 18 Massachusetts Institute of Technology 15 Purdue University 17 University of Wisconsin, Madison 13 Palo Alto Research Center (PARC) 15 North Carolina State University 13 North Carolina State University 15 Johns Hopkins University 13 Johns Hopkins University 15 University of California, San Diego 13 University of Wisconsin, Madison 13 University of California, San Diego 2003-2007 2004-2008 56 Carnegie Mellon University 56 Carnegie Mellon University 34 Stanford University 34 University of California, Berkeley 29 University of California, Berkeley 32 Stanford University 22 Purdue University 25 Johns Hopkins University 21 Johns Hopkins University 22 Purdue University 20 Microsoft Research, US 21 Microsoft Research, US 20 IBM Research, US 21 Georgia Institute of Technology 17 University of California, San Diego 21 IBM Research, US 16 University of Wisconsin, Madison 20 University of Illinois, Urbana Champaign 15 North Carolina State University 20 University of California, San Diego 15 Columbia University 2005-2009 2006-2010 52 Carnegie Mellon University 55 Carnegie Mellon University 33 University of California, Berkeley 42 University of California, Berkeley 31 Microsoft Research, US 34 Georgia Institute of Technology 29 Georgia Institute of Technology 33 Microsoft Research, US 27 Stanford University 30 Stanford University 24 University of Illinois, Urbana Champaign 26 University of Illinois, Urbana Champaign 23 Johns Hopkins University 24 IBM Research, US 23 IBM Research, US 22 University of California, San Diego 20 Purdue University 21 University of California, Santa Barbara 18 Stony Brook University 19 Johns Hopkins University 18 University of California, San Diego 2007-2011 2008-2012 64 Carnegie Mellon University 63 Carnegie Mellon University 50 University of California, Berkeley 61 Microsoft Research, US 45 Microsoft Research, US 53 University of California, Berkeley 37 Georgia Institute of Technology 38 Georgia Institute of Technology 31 University of Illinois, Urbana Champaign 33 Stanford University 30 Stanford University 31 University of Illinois, Urbana Champaign 26 University of California, Santa Barbara 31 University of California, Santa Barbara 24 University of California, San Diego 27 University of California, San Diego 23 IBM Research, US 20 IBM Research, US 20 Google 19 Google 19 University of North Carolina, Chapel Hill 19 University of Michigan, Ann Arbor 19 University of Texas, Austin 19 University of Washington 2009-2013 2010-2014 73 Microsoft Research, US 79 Carnegie Mellon University 68 Carnegie Mellon University 76 Microsoft Research, US 61 University of California, Berkeley 70 University of California, Berkeley 39 University of California, Santa Barbara 39 University of California, Santa Barbara 37 Georgia Institute of Technology 38 University of California, San Diego 31 Stanford University 36 Georgia Institute of Technology 30 University of California, San Diego 35 University of Illinois, Urbana Champaign 29 University of Texas, Austin 34 University of Maryland, College Park 28 University of Illinois, Urbana Champaign 32 Stanford University 22 North Carolina State University 31 University of Texas, Austin 2011-2015 2012-2016 83 Microsoft Research, US 79 Microsoft Research, US 77 Carnegie Mellon University 69 Carnegie Mellon University 67 University of California, Berkeley 63 University of California, Berkeley 45 Georgia Institute of Technology 57 Georgia Institute of Technology 42 University of Maryland, College Park 54 University of Maryland, College Park 41 University of California, Santa Barbara 44 University of California, Santa Barbara 38 Technical University, Darmstadt 43 Technical University, Darmstadt 36 University of Illinois, Urbana Champaign 40 Indiana University, Bloomington 36 Ruhr-University Bochum 39 University of Illinois, Urbana Champaign 36 University of California, San Diego 39 University of Michigan, Ann Arbor 39 Ruhr-University Bochum 2013-2017 2014-2018 75 Georgia Institute of Technology 81 Georgia Institute of Technology 69 Microsoft Research, US 72 University of Maryland, College Park 69 University of California, Berkeley 63 University of California, Berkeley 64 Carnegie Mellon University 60 Carnegie Mellon University 64 University of Maryland, College Park 59 Microsoft Research, US 49 Technical University, Darmstadt 56 Purdue University 46 University of California, Santa Barbara 54 University of Illinois, Urbana Champaign 45 Indiana University, Bloomington 51 Indiana University, Bloomington 43 Ruhr-University Bochum 50 University of Michigan, Ann Arbor 43 University of Michigan, Ann Arbor 50 Technical University, Darmstadt 2015-2019 2016-2020 86 Georgia Institute of Technology 84 Georgia Institute of Technology 70 University of Maryland, College Park 80 Purdue University 68 Purdue University 76 University of California, Berkeley 66 University of California, Berkeley 73 CISPA 59 University of Illinois, Urbana Champaign 71 University of Illinois, Urbana Champaign 57 CISPA 70 University of Maryland, College Park rity 57 Ruhr-University Bochum 63 Ruhr-University Bochum 54 Microsoft Research, US 59 University of Michigan, Ann Arbor 53 University of Michigan, Ann Arbor 58 ETH Zurich 52 Technical University, Darmstadt 55 Pennsylvania State University 52 ETH Zurich 2017-2021 2018-2022 105 Purdue University 124 CISPA 95 Georgia Institute of Technology 116 Purdue University 94 CISPA 103 University of Illinois, Urbana Champaign 87 University of Illinois, Urbana Champaign 96 ETH Zurich 77 University of California, Berkeley 94 Georgia Institute of Technology 74 Pennsylvania State University 89 Pennsylvania State University 74 ETH Zurich 82 Ruhr-University Bochum 73 University of Maryland, College Park 77 Tsinghua University 72 Ruhr-University Bochum 74 University of California, Berkeley 63 Northeastern University 74 Chinese Academy of Sciences 74 University of Maryland, College Park