Trust and reputation are concepts that have been traditionally studied in domains such as electronic markets, e-commerce, game theory and bibliometrics, among others. More recently, researchers started to investigate the benefits of using these concepts in multi-robot domains: when one robot has to decide if it should cooperate with another one to accomplish a task, should the trust in the other be taken into account? This paper proposes the use of a trust model to define when one agent can take an action that depends on other agents of his team. To implement this idea, a Heuristic Multiagent Reinforcement Learning algorithm is modified to take into account the trust in the other agents, before selecting an action that depends on them. Simulations were made in a robot soccer domain, which extends a very well known one proposed by Littman by expanding its size, the number of agents and by using heterogeneous agents. Based on the results it is possible to show the performance of a team of agents can be improved even when using very simple trust models. ; This work has been partially funded by the 2005-SGR-00093 grant of the Generalitat de Catalunya, the MID-CBR project TIN 2006-15140-C03-01, and FEDER funds. Reinaldo Bianchi acknowledge the support of the CNPq (Grant No. 201591/2007-3) and FAPESP (Grant No. 2009/01610-1). ; Peer reviewed
Should I Trust my Teammates? An experiment in Heuristic Multiagent Reinforcement Learning
2009-01-01
Conference paper
Electronic Resource
English
DDC: | 629 |
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