I am a graduate student in the optimization group at the University of Wisconsin, Madison. My research topic is "simulation-based optimization" which focuses on deriving a two-phase framework for optimizing problems arising in simulation systems. I work under the guidance of Professor Michael C. Ferris.

Research Interests

Simulation-Based Optimization
Stochastic Programming
Dynamic Programming and Neuro-Dynamic Programming
Applied Statistics


Ph.D. Joint Ph.D. in Mathematics and Computer Sciences, 2001-
Department of Mathematics and Department of Computer Sciences, University of Wisconsin-Madison
M.S. Statistics, 2004
Department of Statistics, University of Wisconsin-Madison
M.A. Mathematics, 2003
Department of Mathematics, University of Wisconsin-Madison
B.S. Applied Mathematics, 2001
Mathematical Sciences Department, Tsinghua University, China


G. Deng and M. C. Ferris. Extension of the DIRECT Optimization Algorithm for Noisy Functions. Submitted to the 2007 Winter Simulation Conference, 2007 (pdf)
P. Prakash, G. Deng, M. C. Converse, J. G. Webster, D. M. Mahvi and M. C. Ferris. Design Optimization of a Robust Sleeve Antenna for Hepatic Microwave Ablation. Submitted to Phys. Med. Biol., 2007 (pdf)
G. Deng and M. C. Ferris. Variable-Number Sample-Path Optimization. To appear in Mathematical Programming, Series B, 2007(pdf)
G. Deng and M. C. Ferris. Neuro-Dynamic Programming for Fractionated Radiotherapy Planning. To appear in Optimization in Medicine, 2006 (pdf)
G. Deng and M. C. Ferris. Adaptation of the UOBYQA Algorithm for Noisy Functions. In Proceedings of the 2006 Winter Simulation Conference, 312-319, 2006 (pdf)
M. C. Ferris, G. Deng, D. G. Fryback, and V. Kuruchittham. Breast Cancer Epidemiology Model: Calibrating Simulations via Optimization. Oberwolfach Reports 2/2005, 9023-9027 (pdf)


"Adaptation of the UOBYQA Algorithm for Noisy Functions", Winter Simulation Conference '06, Monterey, CA, Dec. 2006 (slides)
"Applying Bayesian Estimation to Noisy Simulation Optimization", INFORMS Annual Meeting 2006, Pittsburgh, PA, Nov. 2006 (slides)
"A Two-Phase Approach for Simulation-Based Optimization", INFORMS International 2006, Hong Kong, China, June 2006 (slides)
"Neuro-Dynamic Programming for Fractionated Radiotherapy Planning", INFORMS Conference on Optimization and Health Care, San Antonio, TX, Feb. 2006 (slides)


Vilas Fellowship, University of Wisconsin-Madison, 2006
I-Sim/ACM-SIGSIM Best Ph.D. Student Paper Award at the Winter Simulation Conference, 2006
Winter Simulation Conference ’06 travel award, 2006
INFORMS Computing Society Best Student Paper Award, 2006
Fellowship, Department of Mathematics, University of Wisconsin-Madison, 2002


Optimization at UW-Madison (link)
COPTA Talks (link)
Decision Tree of Optimization Software (link)
Mathematical Programming Glossary (link)