Dr. Rommel Regis' Personal Website

Welcome to my home page! I am an Assistant Professor in the Mathematics and Computer Science Department at Saint Joseph's University. Below is my CV.

 

EDUCATION

CORNELL UNIVERSITY, Ithaca, NY
Ph.D. in Operations Research, August 2004
M.S. in Operations Research,  May 2002
Major: Mathematical Programming (Optimization)
Minors: Applied Probability & Statistics, Computer Science

UNIVERSITY OF FLORIDA, Gainesville, FL
M.S. in Mathematics, May 1998

ATENEO DE MANILA UNIVERSITY, Quezon City, Philippines
B.S. in Mathematics, Honors Program, March 1993

 

TEACHING EXPERIENCE

SAINT JOSEPH’S UNIVERSITY, Mathematics & Computer Science Department, Philadelphia, PA
Assistant Professor, 2007 – present

CORNELL UNIVERSITY, School of Operations Research & Industrial Engineering, Ithaca, NY
Teaching Assistant, 1998 – 2000

UNIVERSITY OF FLORIDA, Mathematics Department, Gainesville, FL
Teaching Assistant, 1996 – 1998

ATENEO DE MANILA UNIVERSITY, Mathematics Department, Philippines
Assistant Instructor, 1993 – 1996

 

RECENT COURSES

Spring 2009

MAT 2221  Probability and Statistics II (Sections 151 and 152)
MED 4035 Discrete Structures

Fall 2008

MAT 1281  Applied Statistics (Sections 103 and 104)
MAT 2211  Probability and Statistics I

Spring 2008

MAT 1181 Introduction to Statistics (Sections 153 and 154)
MAT 2461 Operations Research

Fall 2007

MAT 1281  Applied Statistics (Sections 101 and 103)
CSC 2811  Topics in Computer Science: Machine Learning and Data Mining

 

RESEARCH EXPERIENCE

CORNELL UNIVERSITY, Cornell Theory Center, Ithaca, NY
Postdoctoral Associate, 2004 - 2007

CORNELL UNIVERSITY, Civil and Environmental Engineering, Ithaca, NY
Research Assistant, 2003 –  2004

CORNELL UNIVERSITY, Department of Computer Science, Ithaca, NY
Research Assistant, 2000 – 2003

 

RESEARCH INTERESTS

Global Optimization, Engineering Optimization, Nonlinear Programming, Derivative-Free Trust-Region Methods, Combinatorial Optimization, Machine Learning

 

JOURNAL PUBLICATIONS

R. G. Regis and C. A. Shoemaker. Parallel Stochastic Global Optimization Using Radial Basis Functions. Accepted by the INFORMS Journal on Computing, 2009.

S. Wild, R. G. Regis, and C. A. Shoemaker.  ORBIT: Optimization by Radial Basis Function Interpolation in Trust-Regions. SIAM Journal on Scientific Computing, Vol. 30, No. 6, pp. 3197-3219, 2008.

N. Blizniouk, D. Ruppert, C. A. Shoemaker, R. G. Regis, S. Wild and P. Mugunthan. Bayesian Calibration of Computationally Expensive Models Using Optimization and Radial Basis Function Approximation. Journal of Computational and Graphical Statistics, Vol. 17, No.  2, pp. 270-294, 2008.

R. G. Regis and C. A. Shoemaker. A Stochastic Radial Basis Function Method for the Global Optimization of Expensive Functions. INFORMS Journal on Computing, Vol. 19, No. 4, pp. 497-509, Fall 2007.

R. G. Regis and C. A. Shoemaker. Parallel Radial Basis Function Methods for the Global Optimization of Expensive Functions. European Journal of Operational Research, Vol. 182, Issue 2, pp. 514-535, 2007.

R. G. Regis and C. A. Shoemaker. Improved Strategies for Radial Basis Function Methods for Global Optimization. Journal of Global Optimization, Vol. 37, No. 1, pp. 113-135, 2007.

C. A. Shoemaker, R. G. Regis and R. C. Fleming. Watershed Calibration Using Multistart Local Optimization and Evolutionary Optimization with Radial Basis Function Approximation. Hydrological Sciences Journal – Journal Des Sciences Hydrologiques, Vol. 52, Issue 3 (Special issue: Hydroinformatics), pp. 450-465, 2007.

R. G. Regis and C. A. Shoemaker. Constrained Global Optimization of Expensive Black Box Functions Using Radial Basis Functions. Journal of Global Optimization, Vol. 31, No. 1, pp. 153-171, 2005.

P. Mugunthan, C. A. Shoemaker and R. G. Regis. Comparison of Function Approximation, Heuristic and Derivative-Based Methods for Automatic Calibration  of Computationally Expensive Groundwater Bioremediation Models. Water Resources Research, Vol. 41, W11427, doi:10.1029/2005WR004134, 2005.

R. G. Regis and C. A. Shoemaker. Local Function Approximation in Evolutionary Algorithms for Costly Black Box Optimization. IEEE Transactions on Evolutionary Computation, Vol. 8, No. 5, pp. 490–505, October 2004.

C. P. Gomes, R. G. Regis and D. B. Shmoys. An Improved Approximation Algorithm for the Partial Latin Square Extension Problem. Operations Research Letters, Vol. 32, No. 5, pp. 479–484,2004.

 

CONFERENCE PRESENTATIONS

R. G. Regis. On the Convergence of Adaptive Stochastic Search Methods for Continuous Global Optimization. Joint Mathematics Meetings, Washington, DC, 2009.

R. G. Regis. Recent Developments in Derivative-Free Optimization. Joint Mathematics Meetings, Washington, DC, 2009.

R. G. Regis and C. A. Shoemaker. A Quasi-multistart Global Optimization Approach using Radial Basis Functions. INFORMS Annual Meeting, Washington, DC, 2008.

R. G. Regis, S. Henderson, C. A. Shoemaker. A Multistart Approach for Continuous Global Optimization Using a Pseudo-Convexity Criterion. SIAM Conference on Optimization, Boston, MA, 2008.

R. G. Regis and C. A. Shoemaker. Derivative-Free Optimization Methods for the Calibration of Groundwater Bioremediation Models and Watershed Models. SIAM Annual Meeting, San Diego, CA, 2008.

R. G. Regis, S. Wild, C. A. Shoemaker. Derivative-Free Trust-Region Methods Using Radial Basis Functions. SIAM Conference on Computational Science & Engineering, Costa Mesa, CA, 2007.

R. G. Regis. Partial Latin Squares with the Sudoku Structure. Joint Mathematics Meetings, New Orleans, LA, 2007.

R. G. Regis, C. A. Shoemaker, S. Wild. A Derivative-Free Trust-Region Method for Engineering Optimization. INFORMS Annual Meeting, Pittsburgh, PA, 2006.

R. G. Regis and C. A. Shoemaker. A Stochastic Radial Basis Function Method for Global Optimization. INFORMS Annual Meeting, Denver, CO, 2004.

R. G. Regis, C. A. Shoemaker and P. Mugunthan. A Parallel Radial Basis Function Method for Global Optimization. International Conference on Continuous Optimization (ICCOPT I), Troy, NY, 2004.

R. G. Regis and C. A. Shoemaker. A Radial Basis Function Method for Nonlinearly Constrained Global Optimization. INFORMS Annual Meeting, Atlanta, GA, 2003.

R. G. Regis and C. A. Shoemaker. Parallel Optimization of Computationally Expensive Functions Using Radial Basis Functions. INFORMS Annual Meeting, Atlanta, GA, 2003.

C. P. Gomes, R. G. Regis and D. B. Shmoys. An Improved Approximation Algorithm for the Partial Latin Square Extension Problem. 14th Annual ACM-SIAM Symposium on Discrete Algorithms (SODA ’03), Baltimore, MD, 2003.

R. G. Regis, C. P. Gomes and D. B. Shmoys. An Improved Performance Guarantee for the Partial Latin Square Extension Problem. INFORMS Annual Meeting, San Jose, CA, 2002.

 

PROFESSIONAL SERVICE

Referee for Optimization and Engineering, Journal of Global Optimization, Applied Numerical Mathematics, and IEEE Transactions on Evolutionary Computation.

Session Chair for Global Optimization at the 2008 SIAM Conference on Optimization in Boston, MA.

 

PROFESSIONAL SOCIETIES

Institute for Operations Research and the Management Sciences (INFORMS)

Society for Industrial and Applied Mathematics (SIAM)

Mathematical Association of America (MAA)

Sigma Xi Scientific Research Society

 

RECENT HONORS AND AWARDS

Project NExT Fellow, Mathematical Association of America (MAA), 2008-2009
Project NExT (New Experiences in Teaching) is a professional development program of the MAA.

Section NExT Fellow, Eastern Pennsylvania and Delaware (EPADEL) Section of the MAA, 2008-2009

Summer Research Grant, Saint Joseph’s University, 2008