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 Talks

  • New Algorithms for Nonnegative Matrix Factorization and Beyond

    UT Austin CS Colloquium, April 2013
    UCSD CS Colloquium, April 2013
    Carnegie Mellon CS/ML Colloquium, March 2013
    Cornell CS Colloquium, March 2013
    Princeton CS Colloquium, March 2013
    MIT Applied Math Special Seminar, February 2013
    Columbia IEOR/CS Colloquium, February 2013
    MSR Silicon Valley Theory Seminar, February 2013
    IBM TJ Watson Theory Seminar, February 2013
    Caltech CMS Colloquium, January 2013
    MSR New England Theory Seminar, January 2013

  • Computing a Nonnegative Matrix Factorization -- Provably

    Cornell Theory Seminar, October 2012
    IBM TJ Watson Theory Lunch, August 2012
    Google Research NYC Theory Seminar, June 2012
    Carnegie Mellon Theory Seminar, December 2011
    University of Texas, Austin Theory Seminar, November 2011

  • Pareto Optimal Solutions for Smoothed Analysts

    Princeton Discrete Math Seminar, March 2012
    Rutgers Discrete Math Seminar, February 2012
    University of California, Berkeley Theory Seminar, September 2011
    Beyond Worst Case Analysis Workshop (Stanford), September 2011
    STOC 2011, June 2011

  • Vertex Sparsification and Oblivious Reductions

    Columbia Discrete Math Seminar, November 2011
    DIMACS Theory Seminar, October 2011
    UCLA Colloquium, March 2011
    Stanford Colloquium, February 2011
    USC Colloquium, January 2011
    Georgia Tech ARC Colloquium, January 2011
    Microsoft Research Silicon Valley Theory Seminar, January 2011
    MIT Operations Research Seminar, December 2010
    University of Washington Theory Seminar, December 2010

  • Approximation Algorithms for Multicommodity-Type Problems

    Carnegie Mellon Theory Lunch, September 2010
    China Theory Week, September 2010
    Cornell Theory Seminar, February 2010
    Princeton Theory Lunch, December 2009
    University of California, Berkeley Theory Seminar, November 2009
    Stanford Algorithms Seminar, November 2009
    FOCS 2009, October 2009
    MIT Combinatorics Seminar, September 2009
    ATT Research Theory Seminar, May 2009
    Bell Labs Theory Seminar, May 2009

  • Learning Mixtures of Gaussians (video)

    International Workshop on Statistical Learning , June 2013
    UCSD Theory Seminar, April 2013
    Center for Computational Intractability Meeting, September 2011
    Microsoft Research New England Theory Seminar, January 2011
    Institute for Advanced Study CSDM Seminar, January 2011
    Microsoft Research Redmond Theory Lunch, December 2010
    Yale Statistics Seminar, November 2010
    Carnegie Mellon Theory Seminar, September 2010
    Microsoft Research Silicon Valley Theory Seminar, August 2010
    IBM T.J. Watson Theory Lunch, May 2010