Presentations
"Finding Well-Dispersed Nondominated Solutions for a Three Objective SVM Formulation for the Imbalanced Data Classification Problem, INFORMS, Oct. 2019, Seattle, WA, U.S.A., with Gökhan Kirlik.
"A Grid-based Algorithm to Generate Well-Dispersed Nondominated Solutions for a Three Objective SVM Formulation for the Imbalanced Data Classification Problem," 25th International Conference on Multiple Criteria Decision Making, June 2019, İstanbul, with Gökhan Kirlik.
"Experiments with two relaxations for multiobjective integer linear programs," INFORMS, Nov. 2018, Phoenix, AZ, U.S.A.
"Generating representative sets for multiobjective discrete optimization problems," International Symposium on Mathematical Programming, July, 2018, Bordeaux, France, with Gökhan Kirlik.
"Representations: Can They Have Potential for Customer Choice?," Dagstuhl Seminar 18031, Personalized Multiobjective Optimization: an Analytics Perspective, Jan.2018, Wadern, Germany.
"Bilevel Programming for Generating Discrete Representations in Multiobjective Optimization," INFORMS, Oct. 2017, Houston, TX, U.S.A., with Gökhan Kirlik.
"On Measures of Quality for Representations and Approximations," INFORMS, Nov. 2016, Nashville, TN, U.S.A.
"Two Methods for Finding Representations of the Nondominated Set in Multiobjective Optimization," 23rd International Conference on Multiple Criteria Decision Making, August 2015, Hamburg, Germany, with Gökhan Kirlik.
"Finding Representations of the Nondomoniated Set in Multiobjective Optimization," 22nd International Symposium on Mathematical Programming, July 2015, Pittsburgh, PA, USA, with Gökhan Kirlik.
"Exact and Representation Methods in Multiobjective Optimization,", Workshop on Recent Advances in Multiobjective Optimization, June 2015, Nantes, France.
"SVM Classification for Imbalanced Data Sets Using a Multiobjective Optimization Framework," 26th European Conference on Operational Research, July 2013, Rome, Italy, with A. Aşkan.
"Identifying Supported and Extreme Supported Nondominated Solutions and an Empirical Analysis of Their Representative Quality,", MCDM 2013, 22nd International Conference on Multiple Criteria Decision Making, June 2013, Malaga, Spain.
"Exploring the Trade-off Between Generalization and Empirical Errors in a One-norm SVM," 21st International Conference on Multiple Criteria Decision Making, June , 2011, Jyvaskyla, Finland, with Haldun Aytuğ.
"Analysis of Spamming Behavior at Different Aggregation Levels and Implications for IT Security," INFORMS 2010, Austin, TX, with Serpil Sayin, Manoj Parameswaran, John S. Quarterman, Andrew Whinston.
"The Effects of Technique and Data Complexity on the Quality of Forecasts: Predicting SKU Demand in A Grocery Retail Environment," Data Mining Meets Marketing, the McCombs School of Business, The University of Texas at Austin, August 2009, Austin, TX, USA, with Ö. Gür Ali, Tom van Woensel, Jan Fransoo.
"Çok Amaçlı Karar Süreçleri ve Modelleri (Multiple Objective Decision Processes and Models), Tutorial, National Meeting of the Operational Research Society of Turkey, June 2009, Bilkent, Ankara.
"Obtaining Representations and Approximations of the Efficient Set," INFORMS Optimization Conference, March 2008, Atlanta, Georgia, USA.
"Representations and Approximations of the Efficient Set in Bicriteria Discrete Optimization,'' 22nd European Conference on Operational Research, July 2007, Prague, Czech Republic.
"Exact and Heuristic Algorithms in Multiple Objective Discrete Optimization,'' Dagstuhl Seminar 06501: Practical Approaches to Multi-Objective Optimization, December 2006, Schloss Dagstuhl, Wadern, Germany.
"Using Support Vector Machines to Learn the Efficient Set in Multiple Objective Discrete Optimization,'' 7th International Conference on Multiple Objective Programming/ Goal Programming, June 2006, Tours, France, with Haldun Aytuğ.
"Learning the Efficient Set Using Support Vector Machines: Methodology and Potential Uses,'' 18th International Conference on Multiple Criteria Decision Making, June 2006, Chania, Crete, Greece, with Haldun Aytuğ.
"Assigning Cross-Trained Workers to Departments: An Optimization Model to Maximize Utility and Skill Improvement,'' 20th European Conference on Operational Research, July 2004, Rhodes, Greece, with S. Karabatı.
"Finding the Efficient Set of a Bicriteria Discrete Optimization Problem Using Algorithm Robust,'' EURO/INFORMS Joint International Meeting, July 2003, Istanbul, with P. Kouvelis.
"Robust Optimization and Multiobjective Optimization: Cross Utilization of Solution Methods,'' INFORMS Annual Meeting, Nov , 2002, San Jose, CA, with P. Kouvelis.
"Robustness and Efficiency: A Study of Relationships with Application to Discrete Optimization,'' 16th International Conference on Multiple Criteria Decision Making, Semmering, Austria, February 2002.
"On Finding Discrete Representations of the Efficient Set in Multiple Objective Mathematical Programming,'' EURO 2001, The European Operational Research Conference, Rotterdam, The Netherlands, July 2001.
"A Procedure to Find Discrete Representations of the Efficient Set with Specified Coverage Errors,'' 15th International Conference on Multiple Criteria Decision Making, METU, Ankara, July 2000.
"Representing the Efficient Set in Multiple Objective Mathematical Programming Problems,'' National Meeting of the Operational Research Society of Turkey, Ankara, June 1999 (in Turkish).
"Can Discrete Representations of the Efficient Set Be the Solution to a Multiple Objective Mathematical Programming Problem?'' Workshop on Efficiency Sets and Surfaces in Data Envelopment Analysis, Multiple Criteria Decision Making, and Finance: An Emphasis on New Exploratory Ideas, Helsinki School of Economics, Helsinki, Finland, February 1999.
"A Framework for Measuring the Quality of Discrete Representations of Efficient Sets,'' the 4th DAS (Decision Analysis and Support) Workshop on Multiple Criteria Support in Network Centric Organizations, Istanbul, September 1998. (organized by Yeditepe University, Istanbul, and International Institute for Applied Systems Analysis (IIASA), Laxenburg,Austria.)
"A Bicriteria Approach to Part-Type Selection in Flexible Manufacturing Systems,'' with Meltem Denizel, National Meeting of the Operational Research Society of Turkey, Ankara, June 1998 (in Turkish).
"Sequencing and Line Balancing in Mixed-model Assembly Lines,'' with Selçuk Karabatı, National Meeting of the Operational Research Society of Turkey, June 1998, Ankara (in Turkish).
"Measuring the Quality of Discrete Representations of Efficient Sets in Multiple Objective Mathematical Programming,'' 14th International Conference on Multiple Criteria Decision Making, Charlottesville, Virginia, USA, June 1998.
"Using Facial Decomposition for Optimizing over the Efficient Set,'' 13th International Conference on Multiple Criteria Decision Making, Cape Town, South Africa, January 1997.
"A Vector Optimization Method for Multiple Objective Linear Programming Based on Facial Decomposition,'' National Meeting of the Operational Research Society of Turkey, Istanbul, October 1996 (in Turkish).
"A Bicriteria Approach to the Two--Machine Flow Shop Problem,'' with Selçuk Karabatı, INFORMS New Orleans, U.S.A., November 1995.
"Optimizing Over the Efficient Set and Some Special Cases,'' National Meeting of the Operational Research Society of Turkey, Ankara, July 1995 (in Turkish.)
"An Algorithm Based on Facial Decomposition for Finding the Efficient Set in Multiple Objective Linear Programming,'' 12th International Conference on Multiple Criteria Decision Making, Hagen, Germany, June 1995.
"Multiple Criteria Decision Making,'' with Murat Köksalan, National Meeting of the Operational Research Society of Turkey, Ankara, July 1994 (Tutorial, in Turkish.)
"Global Approaches to Representing the Efficient Set in Linear and Nonlinear Multiple Objective Optimization,'' with H. P. Benson, TIMS/ORSA Joint National Meeting, Boston, U.S.A., April 1994.
"Optimization over the Efficient Set: Four Special Cases,'' with H.P. Benson, TIMS/ORSA Joint National Meeting, Chicago, U.S.A., May 1993.
"Modification and Implementation of a Finite Branch and Bound Algorithm for Globally Solving Linearly Constrained Concave Minimization Problems,'' with H.P. Benson, ORSA/TIMS Joint National Meeting, Anaheim, California, U.S.A. November 1991 (refereed).