Harri Ehtamo

Professor

Research outputs

  1. 2019
  2. Published
  3. 2018
  4. Published

    Modeling uncertain passenger arrivals in the elevator dispatching problem with destination control

    Sorsa, J., Ehtamo, H., Kuusinen, J. M., Ruokokoski, M. & Siikonen, M. L., 2018, In : OPTIMIZATION LETTERS. 12, 1, p. 171–185 15 p.

    Research output: Contribution to journalArticle

  5. 2017
  6. Published

    Two-type multi-agent game for egress congestion

    von Schantz, A., Ehtamo, H. & Pärnänen, I., 2017, Proceedings of the 50th Hawaii International Conference on System Sciences. IEEE, p. 1328-1337

    Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

  7. 2016
  8. Published

    Assignment formulation for the Elevator Dispatching Problem with destination control and its performance analysis

    Ruokokoski, M., Sorsa, J., Siikonen, M. L. & Ehtamo, H., 16 Jul 2016, In : European Journal of Operational Research. 252, 2, p. 397–406

    Research output: Contribution to journalArticle

  9. 2015
  10. Published

    Elevator Dispatching Problem: a Mixed Integer Linear Programming Formulation and Polyhedral Results

    Ruokokoski, M., Ehtamo, H. & Pardalos, P. M., 2015, In : JOURNAL OF COMBINATORIAL OPTIMIZATION. 29, 4, p. 750-780

    Research output: Contribution to journalArticle

  11. Published

    Spatial game in cellular automaton evacuation model

    von Schantz, A. & Ehtamo, H., 2015, In : Physical Review E. 92, 5, p. 1-13 052806.

    Research output: Contribution to journalArticle

  12. 2014
  13. Published

    Cellular Automaton Evacuation Model Coupled with a Spatial Game

    von Schantz, A. & Ehtamo, H., 2014, 10th International Conference, AMT 2014 Warsaw, Poland, August 1114, 2014. Slezak, D., Schaefer, G., Vuong, S. T. & Kim, Y-S. (eds.).

    Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

  14. 2013
  15. Published

    Patient and impatient pedestrians in a spatial game for egress congestion

    Heliövaara, S., Ehtamo, H., Helbing, D. & Korhonen, T., 2013, In : Physical Review E. 87, 012802, p. 1-10

    Research output: Contribution to journalArticle

  16. Published

    Priority-based classification of spectrum access models

    Berg, K., Ehtamo, H., Uusitalo, M. A. & Wijting, C., 2013, In : IEEE Communications Magazine. 51, 8, p. 162-167

    Research output: Contribution to journalArticle

  17. 2012
  18. Published

    A study on the arrival process of lift passengers in a multi-storey office building

    Kuusinen, J-M., Sorsa, J., Siikonen, M-L. & Ehtamo, H., 2012, In : BUILDING SERVICES ENGINEERING RESEARCH AND TECHNOLOGY. 33, 2, p. 437-449

    Research output: Contribution to journalArticle

  19. Published

    Continuous learning methods in two-buyer pricing problem

    Berg, K. & Ehtamo, H., 2012, In : Mathematical Methods of Operations Research. 75, 3, p. 287-304

    Research output: Contribution to journalArticle

  20. Published

    Counterflow model for agent-based simulation of crowd dynamics

    Heliövaara, S., Korhonen, T., Hostikka, S. & Ehtamo, H., 2012, In : Building and Environment. 48, 0, p. 89-100

    Research output: Contribution to journalArticle

  21. Published

    Pedestrian Behavior and Exit Selection in Evacuation of a Corridor - An Experimental Study

    Heliövaara, S., Kuusinen, J-M., Rinne, T., Korhonen, T. & Ehtamo, H., 2012, In : Safety Science. 50, p. 221-227

    Research output: Contribution to journalArticle

  22. 2010
  23. Published

    An Adjustment Scheme for Nonlinear Pricing Problem with Two Buyers

    Ehtamo, H., Berg, K. & Kitti, M., 2010, In : European Journal of Operational Research. 201, 1, p. 259-266

    Research output: Contribution to journalArticle

  24. Published

    FDS+Evac: An Agent Based Fire Evacuation Model

    Korhonen, T., Hostikka, S., Heliövaara, S. & Ehtamo, H., 2010, Pedestrian and Evacuation Dynamics 2008, Wuppertal, Germany. Springer-Verlang, G. (ed.). p. 109-120

    Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

  25. Published

    Game Theoretic Best-Response Dynamics for Evacuees' Exit Selection

    Ehtamo, H., Heliövaara, S., Korhonen, T. & Hostikka, S., 2010, In : Advances in Complex Systems. 13, 1, p. 113-134

    Research output: Contribution to journalArticle

  26. Published

    Interpretation of Lagrange Multipliers in Nonlinear Pricing Problem

    Berg, K. & Ehtamo, H., 2010, In : OPTIMIZATION LETTERS. 4, 2, p. 275-285

    Research output: Contribution to journalArticle

  27. Published

    Modeling Evacuees' Exit Selection with Best Response Dynamics

    Ehtamo, H., Heliövaara, S., Hostikka, S. & Korhonen, T., 2010, Pedestrian and Evacuation Dynamics 2008, Wuppertal, Germany, 27-29.2.2008.. Springer-Verlag, G. (ed.). p. 309-319

    Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

  28. 2009
  29. Published

    Adjustment of an Affine Contract with Fixed-Point Iteration

    Kitti, M. & Ehtamo, H., 2009, In : Journal of Optimization Theory and Applications. 140, 3, p. 477-497

    Research output: Contribution to journalArticle

  30. 2008
  31. Published

    FDS+Evac: Modelling Social Interactions in Fire Evaquation

    Korhonen, T., Hostikka, S., Heliövaara, S. & Ehtamo, H., 2008, 7th International Conference on Performance-Based Codes and Fire Safety Design Models, New Zealand, 16-18.4.2008. p. 241-250

    Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

  32. Published

    Multidimensional Screening: Online Computation and Limited Information

    Berg, K. & Ehtamo, H., 2008, ICEC 2008, the 10th International Conference on Electronic Commerce, Innsbruck, Itävalta, 19.-22.8.2008. p. 1-10

    Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

  33. 2007
  34. Published

    Analysis of the constraint proposal method for two-party negotiations

    Kitti, M. & Ehtamo, H., 2007, In : European Journal of Operational Research. 181, 2, p. 817-827

    Research output: Contribution to journalArticle

  35. Published

    FDS+Evac: Evacuation module for fire dynamics simulator

    Korhonen, T., Hostikka, S., Heliövaara, S., Ehtamo, H. & Matikainen, K., 2007, The Interflam 2007: 11th International Conference on Fire Science and Engineering, London, 3.-5.9.2007. p. 1443-1448

    Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

  36. Published

    Integration of an agent based evacuation simulation and state-of-the-art fire simulation

    Korhonen, T., Hostikka, S., Heliövaara, S. & Ehtamo, H., 2007, 7th Asia-Oceania Symposium on Fire Science & Technology, Hong Kong, 20.-22.9.2007.

    Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

  37. Published

    Poistumissimuloinnit palotilanteissa

    Heliövaara, S., Ehtamo, H., Korhonen, T. & Hostikka, S., 2007, In : Pelastustieto. 58, p. 109-113

    Research output: Contribution to journalArticle

  38. 2004
  39. Published

    An E-learning Module on Negotiation Analysis

    Ehtamo, H., Hämäläinen, R. P. & Koskinen, V., 2004, Hawaii International Conference on System Sciences. IEEE

    Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

  40. 2003
  41. Published

    Optimal control of double-deck elevator group using genetic algorithm

    Sorsa, J., Siikonen, M-L. & Ehtamo, H., 2003, In : International Transactions in Operational Research. 10, 2, p. 103-114

    Research output: Contribution to journalArticle

  42. 2002
  43. Published

    Recent Studies on Incentive Design Problems in Game Theory and Management Science

    Ehtamo, H., Kitti, M. & Hämäläinen, R., 2002, Optimal Control and Differential games, Essays in Honor of Steffen Jorgensen. Zaccour, G. (ed.). Boston/Dordrecht/London: Kluwer Academic Publishers, p. 121-134

    Research output: Chapter in Book/Report/Conference proceedingChapterScientificpeer-review

  44. 2001
  45. Published
  46. Published

    Evaluating a framework for multi-stakeholder decision support in water resources

    Hämäläinen, R. P., Kettunen, E., Marttunen, M. & Ehtamo, H., 2001, In : Group Decision and Negotiation. 10, 4, p. 331-353

    Research output: Contribution to journalArticle

  47. Published
  48. Published

    On Applied Nonlinear and Bilevel Programming for Some Pursuit-Evasion Games

    Ehtamo, H. & Raivio, T., 2001, In : Journal of Optimization Theory and Applications. 108, 1, p. 65-96

    Research output: Contribution to journalArticle

  49. Published

    Searching for Joint Gains in Multi-Party Negotiations

    Ehtamo, H., Kettunen, E. & Hämäläinen, R. P., 2001, In : European Journal of Operational Research. 130, 1, p. 54-69

    Research output: Contribution to journalArticle

  50. Published

    Sensitivity Analysis of the Jointly Improving Direction Method

    Ehtamo, H. & Hämäläinen, R. P., 2001, Group Decision & Negotiation 2001, La Rochelle, France, June 4-7, 2001. Delft University of Technology, p. 123-125

    Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

  51. 2000
  52. Published

    A continuation method for minimum time problems

    Ehtamo, H., Raivio, T. & Hämäläinen, R. P., 2000, Espoo, p. 16, (Helsinki University of Technology Systems Analysis Research Reports; no. E3).

    Research output: Working paperProfessional

  53. Published

    Applying nonlinear programming to pursuit-evasion games

    Ehtamo, H. & Raivio, T., 2000, Espoo, p. 31, (Helsinki University of Technology Systems Analysis Laboratory Research Reports; no. E4).

    Research output: Working paperProfessional

  54. Published

    On numerical solution of a class of pursuit evasion games

    Raivio, T. & Ehtamo, H., 2000, In : International Society of Dynamic Games. Annals . 5, p. 177-192

    Research output: Contribution to journalArticle

  55. Published

    Visual Aircraft Identification as a Pursuit-Evasion Game

    Ehtamo, H. & Raivio, T., 2000, In : Journal of Guidance, Control and Dynamics. 23, 4, p. 701-708

    Research output: Contribution to journalArticle

  56. 1999
  57. Published

    Generating Pareto solutions in two-party negotiations by adjusting artificial constraints

    Ehtamo, H., Hämäläinen, R. P., Heiskanen, P., Teich, J., Verkama, M. & Zionts, S., 1999, In : Management Science. 45, 12, p. 1697-1709

    Research output: Contribution to journalArticle

  58. Published

    Generating Pareto Solutions in Two-Party SettinProposal Methods

    Ehtamo, H., Hämäläinen, R. P., Heiskanen, P., Teich, J., Verkama, M. & Zionts, S., 1999, In : Management Science. 45, 12

    Research output: Contribution to journalArticle

  59. Published
  60. Published

    Towards decision and negotiation support in multi-stakeholder development of lake regulation policy

    Hämäläinen, R. P., Kettunen, E., Marttunen, M. & Ehtamo, H., 1999, Hawaii International Conference on System Sciences, Hawaii, January 5-8, 1999.

    Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

  61. Published
  62. 1998
  63. Published

    Microcomputer simulation of optimal flight paths

    Raivio, T., Virtanen, K., Ehtamo, H. & Hämäläinen, R. P., 1998, EUROSIM´98 Simulation Congress, April 14-15, 1998, Espoo, Finland. Juslin, K. (ed.). p. vol.2,pp. 288-289

    Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

  64. 1997
  65. Published

    Applying nonlinear programming to a complex pursuit-evasion problem

    Raivio, T. & Ehtamo, H., 1997, 1997 IEEE International Conference on Systems, Man, and Cybernetics, Orlando, FL, October 12-15, 1997. Malmborg, C. J. (ed.). IEEE, p. 1548-1551

    Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

  66. Published
  67. Published

    Game modeling and coordination processes for two-level multi-agent systems

    Hämäläinen, R. P., Kettunen, E. & Ehtamo, H., 1997, Sixteenth IASTED International Conference on Modelling, Identification and Control, Austria, February 17-19, 1997. p. 234-240

    Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

  68. Published

    How to select fair improving directions in a negotiation model over continuous issues

    Ehtamo, H., Verkama, M. & Hämäläinen, R. P., 1997, 1997 IEEE International Conference on Systems, Man and Cybernetics, Orlando Florida, October 12-15, 1997. p. 3466-3471

    Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

  69. Published

    VIATO - Visual interactive aircraft trajectory optimization

    Virtanen, K., Ehtamo, H., Raivio, T. & Hämäläinen, R. P., 1997, 1997 IEEE International Conference on Systems, Man and Cybernetics, Orlando, Florida, October 12-15, 1997. Orlando, Florida: IEEE, p. 2280-2285

    Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

  70. 1996
  71. Published

    A decomposition method for a class of pursuit-evasion games

    Raivio, T., Ehtamo, H. & Hämäläinen, R. P., 1996, 7th International Symposium on Differential Games and Applications, Kanagawa, Japan, December 16.-18.1996. p. vol.2, s. 784-795

    Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

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