Publications
Journal Papers
D. Emre, Ö. Karsu, F. Ulus (submitted): “Exact solution algorithms for biobjective mixed integer programming problems.”
F. M. Pirani, F. Ulus (submitted): “Algorithms for DC programming via polyhedral approximations of convex functions.” Preprint available at https://arxiv.org/abs/2309.05487.
Ç. Ararat, F. Ulus, M. Umer (to appear): “Convergence analysis of a norm minimization-based convex vector optimization algorithm.” SIAM Journal on Optimization. Preprint available at https://arxiv.org/abs/2302.08723.
G. Kovacova, F. Ulus (2024): “Computing the recession cone of a convex upper image via convex projection.” Journal of Global Optimization, available online.
A. Wagner, F. Ulus, B. Rudloff, G. Kovacova, N. Hey (2023): “Algorithms to solve unbounded convex vector optimization problems.” SIAM Journal on Optimization, 33(4):2598-2624.
İ. N. Keskin, F. Ulus (2023): “Outer approximation algorithms for convex vector optimization problems.” Optimization Methods and Software, 38(4):723-755.
Ç. Ararat, S. Tekgül, F. Ulus (2023): “Geometric duality results and approximation algorithms for convex vector optimization problems.” SIAM Journal on Optimization, 33(1):116-146.
Ç. Ararat, F. Ulus, M. Umer (2022): “A norm minimization-based convex vector optimization algorithm.” Journal of Optimization Theory and Applications, 194:681-712.
Ö. Karsu, F. Ulus (2022): “Split algorithms for multiobjective integer programming problems.” Computers and Operations Research, 140:105673.
S. Doğan, Ö. Karsu, F. Ulus (2021): “An exact algorithm for biobjective integer programming problems.” Computers and Operations Research, 132:105298.
B. Rudloff, F. Ulus (2021): “Certainty Equivalent and Utility Indifference Pricing for Incomplete Preferences via Convex Vector Optimization.” Mathematics and Financial Economics, 15(2):397-430.
İ. C. Kaya, F. Ulus (2021): “An iterative vertex enumeration method for objective space based multiobjective optimization algorithms.” RAIRO Operations Research, 55:2471-2485.
F. Ulus (2020): “Dışbükey çok amaçlı eniyileme problemleri için yaklaşıklama algoritma varyantları.” (Turkish) Gazi Üniversitesi Fen Bilimleri Dergisi Part C: Tasarım ve Teknoloji, 8(1): 224-236.
F. Ulus (2018): “Tractability of Convex Vector Optimization Problems in the Sense of Polyhedral Approximations.” Journal of Global Optimization, 72(4): 731-742.
B. Rudloff, F. Ulus, R. J. Vanderbei (2017): “A parametric simplex algorithm for linear vector optimization problems.” Mathematical Programming Series A, 163(1): 213-242.
A. Loehne, B. Rudloff, F. Ulus (2014): “Primal and dual approximation algorithms for convex vector optimization problems.” Journal of Global Optimization, 60(4): 713-736.
(MATLAB implementations of the algorithms are available here.)
Book Chapter
G. Ertek, M. Sevinc, F. Ulus, O. Kose, and G. Sahin (2014): “Industrial benchmarking through information visualization and data envelopment analysis: a new framework” in Strategic Performance Management and Measurement Using Data Envelopment Analysis, Eds.: I. Osman, A.L. Anouse, and A. Emrouznejad. IGI Global, DOI: 10.4018/978-1-4666-4474-8. [pdf]
Papers in Conference Proceedings
A. Sadeghi-Tarakameh, X. Wu, F. Ulus, Y. Eryaman, E. Atalar (2019): “Ultimate Intrinsic Specific Absorption Rate Efficiency ”. International Society for Magnetic Resonance in Medicine (ISMRM 27th), Montreal, QC, Canada. [available at ISMRM2019]
G. Ertek, M.A. Can, F. Ulus (2007): “Benchmarking the Turkish Apparel Industry through Data Envelopment Analysis (DEA) and Data Visualization”. 14th International Annual EurOMA Conference, Ankara, Turkey. [pdf]
F. Ulus, O. Kose, G. Ertek and S. Sen (2006): “Financial benchmarking of transportation companies in the New York Stock Exchange (NYSE) through data envelopment analysis (DEA) and visualization”. 4th International Logistics and Supply Chain Congress, Izmir, Turkey. [pdf]
Theses
PhD Thesis: Algorithms for Vector Optimization Problems. [pdf]
Master Thesis: Dividend Optimization for a Jump Diffusion Model [pdf]