Here you can find the most recent selected publications of the Optimization group. The information about past publications is availiable via personal web-pages of members of the group
2012
- S. Pulkkinen, M. M. Mäkelä and N. Karmitsa,
Integral transformation for box-constrained global optimization of decomposable functions , TUCS Technical Report 1036 (2012)
- S. Pulkkinen, M. M. Mäkelä and N. Karmitsa, A continuation approach to mode-finding of multivariate Gaussian mixtures and kernel density estimates, Journal of Global Optimization, to appear, 2012
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N. Karmitsa, A. Bagirov and M. M. Mäkelä,
Comparing different nonsmooth minimization methods and software , Optimization Methods and Software, to appear, 2012.
- V. Emelichev and O. Karelkina,
Postoptimal analysis of the multicriteria combinatorial median location problem , Optimization, to appear, 2012.
- J. Steward, I.M. Navon, M. Zupanski, N. Karmitsa,:Impact of non-smooth observation operators on variational and sequential data assimilation for a limited-area shallow water equations model, Quarterly Journal of the Royal Meteorological Society, to appear, 2012
- V. Emelichev and O. Karelkina, Qualitative stability analysis of multicriteria combinatorial minimin problems, Control and Cybernetics (under review)
- V. Emelichev, V. Korotkov and Y. Nikulin, Post optimal analysis for Markowitz's multicriteria portfolio optimization problem, Journal of Multi-Criteria Decision Analysis (under review)
- M. M. Mäkelä, Y. Nikulin and J. Mezei, Generalizing trade-off directions in multiobjective optimization, Control and Cybernetics (under review) .
- Y. Nikulin, O. Karelkina and M. M. Mäkelä, Some concepts of accuracy and robustness analysis in a vector Boolean optimization, European Journal of Operational Research (under review)
- O. Karelkina, Y. Nikulin, and M. M. Mäkelä, On comparison of exact and evolutionary approaches to the stability radius calculation, Int. Journal of Math. Modelling and Numerical Optimization (under review)
- M. M. Mäkelä, Y. Nikulin and J. Mezei,
A note on extended characterization of generalized trade-off directions in multiobjective optimization , Journal of Convex Analysis, Vol. 19, No. 1, 2012
- M. M. Mäkelä, Y. Nikulin and J. Mezei, On Different Types of Optimality in Nonconvex Multiobjective Optimization: Optimality Conditions via Cone Characterization, (under review).
- Y. Nikulin and Z. Iftikhar,
A note on different modelling approaches for the robust shortest path problem , Int. Journal of Math. Modelling and Numerical Optimization to appear 2012.
- Y. Nikulin, K. Miettinen and M. M. Mäkelä,
A new achievement scalarizing function based on parameterization in multiobjective optimization , OR Spectrum 34(1) (2011), 69 - 87.
2011
- S. Pulkkinen, M. M. Mäkelä and N. Karmitsa,
A continuation approach to global minimization of Gaussian RBF models , TUCS Technical Report 998 (2011).
- N. Karmitsa, M. Tanaka Filho and J. Herskovits,
Globally convergent cutting plane method for nonconvex nonsmooth minimization , Journal of Optimization Theory and Applications Vol. 148, No. 3, March 2011.
- O. Karelkina, Y. Nikulin and M. M. Mäkelä,
An adaptation of NSGA-II to the stability radius calculation for the shortest path problem. , TUCS Technical Report 1017 (2011)
- V. Emelichev, V. Korotkov and Y. Nikulin,
Post-optimal analysis for Markowitz's multicriteria investment problem. , TUCS Technical Report 1016 (2011)
- Y. Nikulin, O. Karelkina and M. M. Mäkelä,
Accuracy functions and robustness tolerances under the game theoretic framework , TUCS Technical Report 1013 (2011)
2010
- V.-P. Eronen, M. M. Mäkelä and T. Westerlund,
On convex nonsmooth MINLP , TUCS Technical Report 988 (2010).
- M. M. Mäkelä, N. Karmitsa and V.-P. Eronen,
On generalized pseudo-and quasiconvexity for nonsmooth functions , TUCS Technical Report 989 (2010).
- N. Karmitsa and M. M. Mäkelä,
Limited memory bundle method for large bound constrained nonsmooth optimization: convergence analysis , Optimization Methods and Software 25 (6) (2010), 895 - 916.
- N. Karmitsa and M. M. Mäkelä,
Adaptive limited memory bundle method for bound constrained large-scale nonsmooth optimization , Optimization: A Journal of Mathematical Programming and Operations Research 59 (6) (2010), 945 - 962.
- M. M. Mäkelä, Y. Nikulin and J. Mezei,
Extended characterization of generalized trade-off directions in multiobjective optimization , TUCS Technical Report 984 (2010).
- M. M. Mäkelä and Y. Nikulin,
Stability and accuracy functions for a multicriteria Boolean linear programming problem with parameterized principle of optimality "from Condorcet to Pareto" , European Journal of Operational Research 207 (2010), 1497 - 1505.
- Y.Nikulin and S. Azimi,
A short note on efficiency of two heuristics for the robust traveling salesman problem , TUCS Technical Report 987 (2010)
- Y. Nikulin and Z. Iftikhar, Empirical study on comparison of two different modeling approaches for the robust shortest path problem , TUCS Technical Report 983 (2010).
- Y. Nikulin, K. Miettinen and M. M. Mäkelä,
A parameterized achievement scalarizing function for multiobjective optimization , TUCS Technical Report 969 (2010).
- V. Emelichev, O. Karelkina and Y. Nikulin,
Stability analysis of a multicriteria combinatorial median location problem , TUCS Technical Report 966 (2010).
- V. Emelichev, V. Korotkov and Y. Nikulin,
Multicriteria Variant of Markowitz's Investment Problem with Savage's Minimax Risk Criteria Under Uncertainty , TUCS Technical Report 993 (2010)
- Y. Nikulin and A.Drexl,
Theoretical aspects of multicriteria flight gate scheduling: deterministic and fuzzy models , Journal of Scheduling 13(3) (2010), 261 - 281.
- J.-B. Jensen and Y. Nikulin,
Heuristics for the central tree problem , Journal of Heuristics 16(5) (2010), 633 - 651.
2009
- N. Karmitsa, M. Tanaka, J. Herskovits,
Nonsmooth minimization via cutting planes and feasible direction interior point method , TUCS Technical Report 960 (2009).
- N. Karmitsa, A. Bagirov and M. M. Mäkelä,
Empirical and theoretical comparisons of several nonsmooth minimization methods and software , TUCS Technical Report 959 (2009).
- Y. Nikulin,
Stability analysis for one multicriteria problem with linear criteria and paprameterized principle of optimality "from lexicographic to Slater" , in Proceedings of ICAMNA 2009: "International Conference on Applied Mathematics and Numerical Analysis" Tokyo, Japan, May 27-29, 2009.
- M. M. Mäkelä and Y. Nikulin,
On cone characterization of strong and lexicographic optimality in convex multiobjective optimization , Journal of Optimization Theory and Applications 143 (3) (2009), 519 - 538.
- M. M. Mäkelä and Y. Nikulin,
Nonconvex multiobjective programming: geometry via cones , TUCS Technical Report 931 (2009).
- M. M. Mäkelä, Y. Nikulin and J. Mezei,
On generalized trade-off directions for basic optimality principles in convex and nonconvex multiobjective optimization , TUCS Technical Report 940 (2009).
- Y. Nikulin and M. M. Mäkelä, Stability analysis for a parameterized multicriteria Boolean linear programming problem, in Proceedings of IFAC 2009: "Workshop on Control Applications of Optimisation", Jyväskylä. Finland, May 6-8, 2009.
- Y. Nikulin and M. M. Mäkelä,
Geometrical approach to characterization optimality in multiobjective optimization , in Book of Abstract EURO 2009: "European Conference on Operational Research", Bonn. Germany, July 5-8, 2009.
- Y. Nikulin,
Stability and accuracy functions for a coalition game with linear payoffs, antagonistic strategies and bans , Annals of Operations Research 172 (1) (2009), 25 - 35.
2008
- S. Emet, A mixed integer approach for optimizing production planning, In Proceedings of the 13th WSEAS International Conference on Applied Mathematics, 2008.
- S. Emet and T. Westerlund, Solving a dynamic separation problem using MINLP techniques,
Journal of Applied Numerical Mathematics 58 (2008), 395 - 406.
- M. Maier, S. Emet, T. Knuutila, E. Alhoniemi, M.Johnsson and O. Nevalainen,
Approaches to workload balancing in printed circuit board assembly , TUCS Technical Report 924 (2008).
- N. Karmitsa, M. M. Mäkelä and M. M. Ali,
Limited memory interior point bundle method for large inequality constrained nonsmooth minimization , Applied Mathematics and Computation. 198 (2008), 382 - 400.
- N. Karmitsa and M. M. Mäkelä,
Globally convergent limited memory bundle algorithm for nondifferentiable programming subject to box constraints , TUCS Technical Report 882 (2008).
- P. Saariluoma, K. Kaario, K. Miettinen and M.M.Mäkelä, Mental contents in interacting with a multiobjective optimization program,
International Journal of Technology and Human Interaction 4 (2008), 43 - 67.
- M. Huovinen, S. Kajander and M.M.Mäkelä, Saaristomeren yhteysalusliikenteen mallintaminen. Teoksessa: Väylät ja Liikenne 2008, seminaarin esitelmäkirja, Tampere: Suomen Tieyhdistys, 2008.
- M. M. Mäkelä and Y. Nikulin,
Properties of efficient solution sets under addition of objectives , OR Letters 36 (2008), 718 ? 721.
- M. M. Mäkelä and Y. Nikulin,
Geometrical optimality conditions for strongly and lexicographically optimal solutions in convex multicriteria programming , TUCS Technical Report 920 (2008).
- M. M. Mäkelä and Y. Nikulin,
Quantative measures of solution robustness in a parameterized multicriteria zero-one linear programming problem , TUCS Technical Report 917 (2008).
- Y. Nikulin,
Simulated annealing algorithm for the robust spanning tree problem , Journal of Heuristics 14 (2008), 391 ? 402.
- A. Drexl and Y. Nikulin,
Multicriteria airport gate assignment and Pareto simulated annealing , IIE Transactions 40 (2008), 385 ? 397.