Presentations

  • “0-1 Mixed Integer Programming : New Cuts and a Gomory-Like Algorithm,” with I.R. de Farias and G.L. Nemhauser. Invited talk at the Fifth Combinatorial Optimization Workshop, Aussois, 2001.
  • “Lifted Inequalities for 0-1 Mixed Integer Programming,” with I.R. de Farias and G.L. Nemhauser. Invited talk at the INFORMS Annual Meeting, Miami 2001.
  • “Lifted Inequalities for 0-1 Mixed Integer Programming,” with I.R. de Farias and G.L. Nemhauser. Invited talk at the Ninth Conference on Integer Programming and Combinatorial Optimization (IPCO2002), Boston 2002.
  • “Lifted Inequalities for 0-1 Mixed Integer Programming: Theory and Computation,” with I.R. de Farias and G.L. Nemhauser. Invited talk at the INFORMS Annual Meeting, San Jose 2002.
  • “Lifted Inequalities from Simplex Tableaux,” Invited talk at the Discussions on Mixed Integer Programming (GIMME IP 2003), Columbia University, New York 2003.
  • “Strengthening Group Polyhedra-Derived Cuts for Mixed Integer Programs through Lifting,” with Y. Li and L. Miller. Invited talk at the INFORMS Annual Meeting, Denver 2004.
  • “Approximate Superlinear Lifting of Continuous Variables,” Invited talk at the INFORMS Annual Meeting, Denver, 2004.
  • “Approximate Lifting for Integer Programming,” Invited talk at the INFORMS Annual Meeting, Denver, 2004.
  • “Deriving Strong Inequalities for Group Polyhedra through Approximate Lifting,” with Y. Li and L. Miller. Invited talk at Praxair Seminar Series, State University of New York at Buffalo, 2005.
  • “Deriving Strong Inequalities for Group Polyhedra through Approximate Lifting,” with Y. Li and L. Miller. Invited talk at the INFORMS Annual Meeting, San Francisco 2005.
  • “MIP Lifting Techniques for Mixed Integer Nonlinear Programs,” with M. Tawarmalani. Invited talk at the INFORMS Annual Meeting, San Francisco, 2005.
  • “New Results on Group Problems,” with S. Dey, Y. Li and L. A. Miller. Invited talk at the conference “Mixed and Integer Programming – The Way Forward”, Louvain-La-Neuve, Belgium, 2006.
  • “Extending MIP Lifting Techniques to Nonlinear Programs,” with M. Tawarmalani. Invited talk at the Third Workshop on Mixed Integer Programming, Miami, 2006.
  • “Strong Inequalities for Integer Programs with Multiple Constraints,” with S. Dey and B. Zeng. Invited talk at IBM T.J. Watson Research Center, 2006.
  • “Strengthened GMICs for 0-1 Mixed Integer Programs.” Invited talk at the INFORMS International Meeting, Puerto Rico, 2007.
  • “Facets of Two-Dimensional Group Problems,” with S. Dey. Invited talk at the INFORMS International Meeting, Puerto Rico, 2007.
  • “Strong Valid Inequalities for 0-1 Knapsack Sets with Cardinality Constraints,” with B. Zeng. Invited talk at the INFORMS International Meeting, Puerto Rico, 2007.
  • “Strengthened GMICs for 0-1 Mixed Integer Programs,” Invited talk at the INFORMS Annual Meeting, Seattle, 2007.
  • “The Group-Theoretic Approach for the Generation of Cutting Planes in MIP: Theory, Computation and Perspective,” Invited talk at the Twelfth Combinatorial Optimization Workshop, Aussois, 2008
  • “Lifting and Group Approaches to MIP,” INFORMS Optimization Society Conference, Atlanta, 2008.
  • “Generalized MIR Cuts,” with S. Dey. Invited Talk at the INFORMS Optimization Society Conference, Atlanta, 2008.
  • “Generalized MIR Cuts,” with S. Dey. Invited Talk at the INFORMS Annual Conference, Washington, 2008.
  • “The Group Approach in Integer Programming, ” Algorithms Theory Seminar, CISE,, UF, Fall 2008.
  • “MIP techniques in Global Optimization,” Integer Programming at CORE conference, Summer 2009, Louvain-La-Neuve, Belgium.
  • “A Computational Study of Generalized MIR Cuts,” with Y. Park and S. Dey. Invited Talk at the International Symposium on Mathematical Programming, Chicago, Summer 2009,
  • “Strong Valid Inequalities for Orthogonal Disjunctions and Polynomial Covering Sets,” with M. Tawarmalani and K.H. Chung. Invited Talk at the International Symposium on Mathematical Programming, Chicago, Summer 2009.
  • ““Generalized MIR Cuts: Results and Computation,” INFORMS Annual Conference, San Diego, Fall 2009.