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34 results on '"Tykhonov, Dmytro"'

1. Supporting the Design of General Automated Negotiators

Author

Lin, Raz, Kraus, Sarit, Tykhonov, Dmytro, Hindriks, Koen, Jonker, Catholijn M., Kacprzyk, Janusz, editor, Ito, Takayuki, editor, Zhang, Minjie, editor, Robu, Valentin, editor, Fatima, Shaheen, editor, Matsuo, Tokuro, editor, and Yamaki, Hirofumi, editor

Published
2011
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6. Automatic Issue Extraction from a Focused Dialogue

Author

Hindriks, Koen V., Hoppenbrouwers, Stijn, Jonker, Catholijn M., Tykhonov, Dmytro, Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Doug, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Kedad, Zoubida, editor, Lammari, Nadira, editor, Métais, Elisabeth, editor, Meziane, Farid, editor, and Rezgui, Yacine, editor

Published
2007
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8. Analysis of Negotiation Dynamics

Author

Hindriks, Koen, Jonker, Catholijn M., Tykhonov, Dmytro, Carbonell, Jaime G., editor, Siekmann, Jörg, editor, Klusch, Matthias, editor, Hindriks, Koen V., editor, Papazoglou, Mike P., editor, and Sterling, Leon, editor

Published
2007
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9. Eliminating Interdependencies Between Issues for Multi-issue Negotiation

Author

Hindriks, Koen, Jonker, Catholijn M., Tykhonov, Dmytro, Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Dough, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Carbonell, Jaime G., editor, Siekmann, Jörg, editor, Klusch, Matthias, editor, Rovatsos, Michael, editor, and Payne, Terry R., editor

Published
2006
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10. Multi-Agent Model of Trust in a Human Game

Author

Jonker, Catholijn M., Meijer, Sebastiaan, Tykhonov, Dmytro, Verwaart, Tim, Beckmann, M., editor, Künzi, H. P., editor, Fandel, G., editor, Trockel, W., editor, Basile, A., editor, Drexl, A., editor, Dawid, H., editor, Inderfurth, K., editor, Kürsten, W., editor, Schittko, U., editor, Mathieu, Philippe, editor, Beaufils, Bruno, editor, and Brandouy, Olivier, editor

Published
2006
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15. Automatic Issue Extraction from a Focused Dialogue

Author

Hindriks, K.V., Hoppenbrouwers, S.J.B.A., Jonker, C.M., and Tykhonov, Dmytro

Subjects
Information Retrieval and Information Systems, Lecture Notes in Computer Science
Abstract

Contains fulltext : 35109.pdf (Publisher’s version ) (Closed access)

Published
2007

21. Multi-agent Model of Trust in a Human Game

Author

Jonker, Catholijn, Meijer, Sebastiaan, Tykhonov, Dmytro, Verwaart, Tim, Jonker, Catholijn, Meijer, Sebastiaan, Tykhonov, Dmytro, and Verwaart, Tim

Abstract

Individual-level trust is formalized within the context of a multi-agent system that models human behaviour with respect to trust in the Trust and Tracing game. This is a trade game on commodity supply chains and networks, designed as a research tool and to be played by human players. The model of trust is characterised by its learning ability, its probabilistic nature, and how experience influences trust. The validity of the trust model is tested by comparing simulation results with aggregated results of human players. More specifically the simulations show the same effects as human plays on selected parameters like confidence, tracing cost, and the trust update coefficient on observable game statistics like number of cheats, traces, certificates, and guarantees., QC 20120224

Published
2006
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30. Formal Analysis of Trust Dynamics in Human and Software Agent Experiments.

Author

Carbonell, Jaime G., Siekmann, Jörg, Klusch, Matthias, Hindriks, Koen V., Papazoglou, Mike P., Sterling, Leon, Bosse, Tibor, Jonker, Catholijn M., Treur, Jan, and Tykhonov, Dmytro

Abstract

Recognizing that trust states are mental states, this paper presents a formal analysis of the dynamics of trust in terms of the functional roles and representation relations for trust states. This formal analysis is done both in a logical framework and in a mathematical framework based on integral and differential equations. Furthermore, the paper presents formal specifications of a number of relevant dynamic properties of trust. The specifications provided were used to perform automated formal analysis of empirical and simulated data from two case studies, one involving two experiments with humans, and one involving simulation experiments in the context of an economic game. [ABSTRACT FROM AUTHOR]

Published
2007
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31. Analysis of Negotiation Dynamics.

Author

Carbonell, Jaime G., Siekmann, Jörg, Klusch, Matthias, Hindriks, Koen V., Papazoglou, Mike P., Sterling, Leon, Hindriks, Koen, Jonker, Catholijn M., and Tykhonov, Dmytro

Abstract

The process of reaching an agreement in a bilateral negotiation to a large extent determines that agreement. The tactics of proposing an offer and the perception of offers made by the other party determine how both parties engage each other and, as a consequence, the kind of agreement they will establish. It thus is important to gain a better understanding of the tactics and potential other factors that play a role in shaping that process. A negotiation, however, is typically judged by the efficiency of the outcome. The process of reaching an outcome has received less attention in literature and the analysis of the negotiation process is typically not as rigorous nor is it based on formal tools. Here we present an outline of a formal toolbox to analyze and study the dynamics of negotiation based on an analysis of the types of moves parties to a negotiation can make while exchanging offers. This toolbox can be used to study both the performance of human negotiators as well as automated negotiation systems. [ABSTRACT FROM AUTHOR]

Published
2007
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32. Eliminating Interdependencies Between Issues for Multi-issue Negotiation.

Author

Klusch, Matthias, Rovatsos, Michael, Payne, Terry R., Hindriks, Koen, Jonker, Catholijn M., and Tykhonov, Dmytro

Abstract

In multi-issue negotiations, issues may be negotiated independently or not. In the latter case, the utility associated with one issue depends on the value of another. These issue dependencies give rise to more complex, non-linear utility spaces. As a consequence, the computational cost and complexity of negotiating interdependent issues is increased significantly compared to the case of independent issues. Several techniques have been proposed to deal with this increased complexity, including, for example, introducing a mediator in the negotiation setting. In this paper, we propose an alternative approach based on a weighted approximation technique to simplify the utility space. We show that given certain natural assumptions about the outcome of negotiation the application of this technique results in an outcome that closely matches with the outcome based on the original, interdependent utility structure. Moreover, using the approximated utility structure, each of the issues can be negotiated independently which ensures that the negotiation is computationally tractable. The approach is illustrated by applying and testing it in a case study. [ABSTRACT FROM AUTHOR]

Published
2006
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33. GENIUS: AN INTEGRATED ENVIRONMENT FOR SUPPORTING THE DESIGN OF GENERIC AUTOMATED NEGOTIATORS.

Author

Lin, Raz, Kraus, Sarit, Baarslag, Tim, Tykhonov, Dmytro, Hindriks, Koen, and Jonker, Catholijn M.

Subjects
INFORMATION networks, SYSTEMS design, ELECTRONIC commerce, INTELLIGENT agents, SIMULATION methods & models, HUMAN-computer interaction, COMPUTER systems
Abstract

The design of automated negotiators has been the focus of abundant research in recent years. However, due to difficulties involved in creating generalized agents that can negotiate in several domains and against human counterparts, many automated negotiators are domain specific and their behavior cannot be generalized for other domains. Some of these difficulties arise from the differences inherent within the domains, the need to understand and learn negotiators' diverse preferences concerning issues of the domain, and the different strategies negotiators can undertake. In this paper we present a system that enables alleviation of the difficulties in the design process of general automated negotiators termed G enius, a General Environment for Negotiation with Intelligent multi-purpose Usage Simulation. With the constant introduction of new domains, e-commerce and other applications, which require automated negotiations, generic automated negotiators encompass many benefits and advantages over agents that are designed for a specific domain. Based on experiments conducted with automated agents designed by human subjects using G enius we provide both quantitative and qualitative results to illustrate its efficacy. Finally, we also analyze a recent automated bilateral negotiators competition that was based on G enius. Our results show the advantages and underlying benefits of using G enius and how it can facilitate the design of general automated negotiators. [ABSTRACT FROM AUTHOR]

Published
2014
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34. Agent-Based Simulation of the Trust and Tracing Game for Supply Chains and Networks.

Author

Tykhonov, Dmytro, Jonker, Catholijn, XMeijer, Sebastiaan, and Verwaart, Tim

Subjects
SIMULATION methods & models, OPERATIONS research, SIMULATION games in education, HUMAN behavior, DECISION making, TRUST, DECEPTION, SUPPLY chains, PHYSICAL distribution of goods
Abstract

This paper describes a multi-agent simulation model of the Trust And Tracing game. The Trust And Tracing game is a gaming simulation for human players, developed as a research tool for data collection on human behaviour in food supply chains with asymmetric information about food quality and food safety. Important issues in the game are opportunistic behaviour (deceit), trust and institutional arrangements for enforcing compliance. The goal is to improve the understanding of human decision making with respect to these issues. To this end multi-agent simulation can be applied to simulate the effect of models of individual decision making in partner selection, negotiation, deceit and trust on system behaviour. The combination of human gaming simulation and multi-agent simulation offers a basis for model refinement in a cycle of validation, experimentation, and formulation of new hypotheses. This paper describes a first round of model formulation and validation. The models presented are validated by a series of experiments performed by the implemented simulation system, of which the outcomes are compared on aggregated level to the outcomes of games played by humans. The experiments cover in a systematic way the important variations in parameter settings possible in the game and in the characteristics of the agents. The simulation results show the same tendencies of behaviour as the observed human games. [ABSTRACT FROM AUTHOR]

Published
2008

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