Recent Conference Presentations

1. Computing Dominant SVD of Large and Unstructured Matrices (with X. Liu and Z. Wen). The 8th International Conference on Numerical Optimization and Numerical Linear Algebra. Xiamen, China. November 7, 2011.

2. Limited Memory Krylov Subspace Optimization for Singular Value Decomposition (with X. Liu and Z. Wen). ICIAM 2011 - 7th International Congress on Industrial and Applied Mathematics. July 18-22, 2011, Vancouver, BC, Canada.

3. PCA with More Precise Control on Sparsity: Models and Efficient Algorithms. DTRA/NSF 2011 Algorithm Workshop. June 7-9, 2011. Boston, Massachusetts.

4. Hyperspectral Data Unmixing using Compressive Sensing--Method and Real-Data Simulations (with Chengbo Li). The 2011 SIAM Conference on Optimization. May 16-19, 2011. Darmstadtium Conference Center, Darmstadt, Germany.

5. A Simple and Efficient SVD Algorithm for Principal Component Analysis (with Xin Liu). The 2011 SIAM Conference on Optimization. May 16-19, 2011. Darmstadtium Conference Center, Darmstadt, Germany.

6. Video coding using compressive sensing for wireless communications (With Chengbo Li, Hong Jiang and Paul Wilford). IEEE Wireless Communications & Networking Conference (WCNC-2011). March 28-31, 2011, Cancun, Mexico.

7. Arbitrary Resolution Video Coding Using Compressive Sensing (with Hong Jiang, Chengbo Li and Paul Wilford). 2010 Workshop on Picture Coding and Image Processing (WPCIP-2010). December 7-10, 2010, Nagoya, Japan.

8. An Efficient TV-Minimization Algorithm with Application to Single-Pixel Camera (with Chengbo Li and Wotao Yin). The 2010 SIAM Conference on Imaging Science. Chicago, Illinois, April 12-14, 2010.

9. A Study of Algorithms and Models for Sparse Solution Recovery via L1-Minimization (with J. Yang). The 20th International Symposium of Mathematical Programming (ISMP09), Chicago, August 23 - 28, 2009.

10. The story of 3 algorithms in 7 lines for compressive sensing. 7th EUROPT Workshop on ADVANCES IN CONTINUOUS OPTIMIZATION, Remagen, Germany, July 3 - July 4, 2009.

11. 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.

12. 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.

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

14. 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.

15. 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.

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

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

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

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

20. 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.

21. 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.

22. 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.

23. 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.

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

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

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

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

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

29. 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.

30. 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.

31. 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.

32. 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.

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

34. 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.

35. 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.

36. 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.

37. 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

38. 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.

39. 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.

40. 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.

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