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Research

Research Interests
 Stochastic Programming, Financial Risk, Large-Scale Optimization, Applied Optimization, Decision Making under
Uncertainty, Supply Chain Management
Publications
Publications Submitted/Working Papers Scheduled Conferences and Seminars 
Publications
[22] Pattern Definition of the p-Efficiency Concept Accepted in Annals of Operations Research.    
[21] Mathematical Programming Generation of p-Efficient Points. Accepted in European Journal of Operational Research.
[20] Optimization for Simulation: LAD Accelerator. Accepted in Annals of Operations Research. With F. Margot. 
[19] MIP Reformulations of the Probabilistic Set Covering Problem. Mathematical Programming 121 (1), 1-31, 2010. With A. Saxena A., V. Goyal.
[18] A VaR Black-Litterman Model for the Construction of Absolute Return Fund-of-Funds. Accepted in Quantitative Finance
[17] Reverse Engineering Country Risk Ratings: Statistical and Combinatorial Non-Recursive Models.  Accepted in Annals of Operations Research. With P.L. Hammer, A. Kogan.
[16] An Exact Solution Approach for Integer Constrained Portfolio Optimization Problems under Stochastic Constraints. Operations Research 57 (3), 650-670, 2009. With P. Bonami.
[15] Combinatorial Methods for Constructing Credit Risk Ratings. Handbook of Quantitative Finance. Eds: Lee C.F., Lee A.C. Springer. In Press. With A. Kogan. 2010.
[14] Preprocessing Techniques and Column Generation Algorithms for Stochastically Efficient Demand Trajectories. Journal of the Operational Research Society 59, 1239-1252, 2008.
[13]

Showcase Scheduling at Fred Astaire Dance Studio. Interfaces 38 (3), 176-186, 2008. With N. Yakova.

[12]

Integer Programming Solution Approach for Inventory-Production-Distribution Problems with Direct Shipments. International Transactions in Operational Research 15, 259-281, 2008. With F. Margot.

[11]

An Efficient Trajectory Method for Probabilistic Inventory-Production-Distribution Problems. Operations Research 55 (2), 378-394, 2007. With A. Ruszczyński.

[10]

Modeling Country Risk Ratings Using Partial Orders. European Journal of Operational Research 175 (2), 836-859, 2006. With P.L. Hammer, A. Kogan.

[9] A Variable Neighborhood Decomposition Search Methodology for Supply Chain Management Planning Problems. European Journal of Operational Research 175 (2), 959-976, 2006.
[8]

On Characterizing the 4 C's in Supply Chain Management. Journal of Operations Management 23 (1), 81-100, 2005. With N. Yakova.

[7]

A Methodology for Probabilistic Inventory-Production-Distribution Problems. UMI Dissertation 3131759. ProQuest. AnnArbor, MI, 2004. 

[6] Exchange Algorithm for Supersaturated, Saturated and Non-Saturated Designs. In: Modern Mathematical, Management, and Statistical Sciences II: Advances in Theory & Applications. E,J. Dudewicz, B.L. Golden, Z. Govindarajulu (Editors). American Sciences Press. Columbus, OH, 2004. 
[5] Heuristic Optimization of Experimental Designs. European Journal of Operational Research 147 (3), 484-498, 2003.
[4] A Coordinate-Columnwise Exchange Algorithm for the Construction of Supersaturated, Saturated and Non-Saturated Designs. American Journal of Mathematical and Management Sciences 23 (1-2), 109-142, 2003.
[3] Awareness of Distributed Denial of Service Attacks’ Dangers: Role of Internet Pricing Mechanisms. NETNOMICS: Economic Research and Electronic Networking 4 (2), 145-162, 2003.  
[2] Measuring the Impact of Data Mining on Churn Management. Internet Research: Electronic Networking Applications and Policy 11 (5), 375-387, 2001.
[1] Optimization of Experimental Designs. 15th International Workshop on Statistical Modeling, Proceedings in Statistical Modeling, 356-359. Bilbao, Spain, 2000.
Submitted/Working Papers
[1] A Unified Approach for Cycle Service Levels. Revised and resubmitted. 
[2] A Logical Analysis of Banks' Strength Ratings. Revised and resubmitted. With P.L. Hammer, A. Kogan.
[3] On the Relaxation of Probabilistically Constrained Stochastic Programming Problems with Random Right-Hand Sides. Working Paper. With A. Prékopa. 
[4] Pattern-Based Modeling and Solution of Probabilistically Constrained Optimization Problems. Stochastic Programming E-Print Series 2010-3. Submitted.  
[5] Construction of Risk-Averse Enhanced Index Funds. Revised and resubmitted. With G. Samatli-Pac.  
[6] Stochastic portfolio Optimization Under Skewness Conditions. 
[7] Solution of Probabilistically Constrained Stochastic Programming Problems with Normally Distributed Random Variables in the Technology Matrix. With A. Prékopa, T. Szantai. 
[8] Probabilistic Portfolio Optimization Under Transaction Costs. With T. Filomena.   
Scheduled Conferences and Seminars
[1] Solution Method for Large-Scale Chance-Constrained Problems - Application Potential to Defense and Homeland Security Problems. INFORMS 2010, November 2010, Austin, TX.  
[2] Linear Reformulation of Stochastic Problems with Probabilistic Constraints. 12th International Conference on Stochastic Programming. Halifax, Canada, August 2010.  
[3] Linear Reformulation of Probabilistic Programming Problems Using Combinatorial Patterns. International Colloquium on Stochastic Modeling and Optimization. Dedicated to the 80th Birthday of Professor Andras Prékopa. November 2009, Piscataway, NJ.