Some Recent Conference Presentations

1. A fixed-point continuation algorithm for $l_1$-regularization (with Elaine Hale and Wotao Yin). Second Mathematical Programming Society International Conference on Continuous Optimization (ICCOPT II & MOPTA-07), August 13-16, 2007. McMaster University, Hamilton, Ontario, Canada.

2. A Numerical Comparison of Compressed Sensing Reconstruction Algorithms (with Elaine Hale and Wotao Yin). Second Mathematical Programming Society International Conference on Continuous Optimization (ICCOPT II & MOPTA-07), August 13-16, 2007. McMaster University, Hamilton, Ontario, Canada.

3. A New Approach to Fluence Map Optimization in IMRT (with Michael Merritt). Advances In Global Optimization: Methods and Applications, Mykonos, Greece, June 14, 2007.

4. Modifications of the Lee-Seung Algorithm for Nonnegative Matrix Factorization (with Edward F. Gonzalez). INFORMS 2005 Annual Meeting. San Francisco, CA. Nov. 13-16, 2005.

5. Modifications of the Lee-Seung Algorithm for Nonnegative Matrix Factorization (with Edward F. Gonzalez). SIAM 2005 Annual Meeting. New Orleans, LA. July 11-15, 2005.

6. A Greedy, Least-Squares Approach for IMRT Fluence Map Optimization. IFORS Trienial Conference 2005, Honolulu, Hawaii. July 11-15, 2005.

7. A practical approach to IMRT Fluence Map Optimization (with Michael S. Merritt). SIAM 2005 Optimization Conference. Stockholm, Sweden. May 15-19, 2005.

8. A General Robust-Optimization Formulation for Nonlinear Programming. SIAM 2005 Optimization Conference. Stockholm, Sweden. May 15-19, 2005.

9. Optimization in Action: Help treating cancers. Conference on Multi-scale Optimization and Applications. Gainsville, Florida, Feb. 26-28, 2004.

10. Practical Interior-point Algorithms for the Maximum Volume Ellipsoidal Approximation of Polytopes (with Liyan Gao). INFORMS Annual Meeting 2002, San Jose, Nov. 17-20, 2002.

11. New Global Optimization Strategy for the Molecular Replacement Problem (with Diane Jamrog, George Phillips and Richard Tapia). SIAM 50th Anniversary and Annual Meeting, Philadelphia, July 8-12, 2002.

12. Rank-Two Relaxation Heuristics for Max-Cut and Other Binary Quadratic Programs (with Renato Monteiro and Samuel Burer). SIAM Conference on Optimization, Toronto, May 20-22, 2002.

13. Maximum Stable Set Formulations and Heuristics Based on Continuous Optimization (with Renato Monteiro and Samuel Burer). SIAM Conference on Optimization, Toronto, May 20-22, 2002.

14. Ellipsoidal Approximation of Polytopes with Application in Integer Programming (with Liyan Gao). SIAM Conference on Optimization, Toronto, May 20-22, 2002.

15. Computational Study of Lenstra's Algorithm for Integer Programming Feasibility Problems (with Liyan Gao). SIAM Conference on Optimization, Toronto, May 20-22, 2002.

16. Computational Experience with a Gradient-Based Algorithm (with Renato Monteiro and Sam Burer). SIAM Conference on Optimization, Toronto, May 20-22, 2002.

17. Solving the Double Digestion Problem As a Mixed-Integer Linear Program (with Zhijun Wu). SIAM Conference on Optimization, Toronto, May 20-22, 2002.

18. Interior point methods for mathematical programming. INFORMS 2001 Annual Meeting, Miami Beach, Florida, November 3-7, 2001.

19. Maximum Stable Set Formulations and Heuristics based on Continuous Optimization. INFORMS 2001 Annual Meeting, Miami Beach, Florida, November 3-7, 2001. Co-authors: S. Burer and R. Monteiro.

20. Rank-Two Semidefinite Relaxation Heuristics for Max-Cut and Other Binary Quadratic Programs. INFORMS 2001 Annual Meeting, Miami Beach, Florida, November 3-7, 2001. Co-authors: S. Burer and R. Monteiro.

21. Maximum Stable Set Formulations and Heuristics Based on Continuous Optimization. Novel Approaches to Hard Discrete Optimization Workshop, Waterloo, Canada, April 26-28, 2001. Co-authors: S. Burer and R. Monteiro.

22. Rank-Two Semidefinite Relaxation Heuristics for Max-Cut and Other Binary Quadratic Programs. Novel Approaches to Hard Discrete Optimization Workshop, Waterloo, Canada, April 26-28, 2001. Co-authors: S. Burer and R. Monteiro.

23. Interior point methods and semidefinite programming. 2000 SIAM Annual Meeting. Rio Grande, Puerto Rico. July 10-14, 2000.

24. A Fast Newton's Algorithm for Entropy Maximization for Phase Determination. 2000 SIAM Annual Meeting. Rio Grande, Puerto Rico. July 10-14, 2000. Co-Authors: George Phillips, Richard A. Tapia, and Zhijun Wu.

25. An Algorithm for Ellipsoidal Approximation of Polytopes With Application in Integer Programming. 17th International Symposium on Mathematical Programming. Atlanta, GA. August 7-11, 2000. Co-Authors: Liyan Gao.

26. Solving Semidefinite Programs via Nonlinear Programming: Theory and Algorithms. 17th International Symposium on Mathematical Programming. Atlanta, GA. August 7-11, 2000. Co-Authors: Sam Burer and Renato Monteiro.

27. Computational Experience with a Nonlinear Programming Algorithm for Semidefinite Programming. 17th International Symposium on Mathematical Programming. Atlanta, GA. August 7-11, 2000. Co-Authors: Sam Burer and Renato Monteiro

28. The Sphere of Convergence of Newton's Method on Two Equivalent Systems from Nonlinear Programming. INFORMS San Antonio 2000. San Antonio, TX. November 5-8, 2000. Co-Authors: Maria Cristina Villalobos and Richard Tapia.

29. An Algorithm for Ellipsoidal Approximation of Polytopes with an Application in Integer Programming. INFORMS San Antonio 2000. San Antonio, TX. November 5-8, 2000. Co-Authors: Liyan Gao.

30. Approximation of the MAXCUT Problem through an Unconstrained Optimization Problem. INFORMS San Antonio 2000. San Antonio, TX. November 5-8, 2000. Co-Authors: Sam Burer and Renato Monteiro.

31. Solving Semidefinite Programs via Nonlinear Programming. INFORMS San Antonio 2000. San Antonio, TX. November 5-8, 2000. Co-Authors: Sam Burer and Renato Monteiro.