Print Email Facebook Twitter The Game of Reciprocation Habits Title The Game of Reciprocation Habits Author Polevoy, G. (TU Delft Algorithmics) de Weerdt, M.M. (TU Delft Algorithmics) Jonker, C.M. (TU Delft Interactive Intelligence) Contributor Kaminka, Gal A. (editor) Fox, Maria (editor) Bouquet, Paolo (editor) Hüllermeier, Eyke (editor) Dignum, Virginia (editor) Dignum, Frank (editor) van Harmelen, Frank (editor) Date 2016 Abstract People often have reciprocal habits, almost auto- matically responding to others’ actions. A robot who interacts with humans may also reciprocate, in order to come across natural and be predictable. We aim to facilitate decision sup- port that advises on utility-efficient habits in these interac- tions. To this end, given a model for reciprocation behavior with parameters that represent habits, we define a game that describes what habit one should adopt to increase the utility of the process. This paper concentrates on two agents. The used model defines that an agent’s action is a weighted com- bination of the other’s previous actions (reacting) and either i) her innate kindness, or ii) her own previous action (inertia). In order to analyze what happens when everyone reciprocates rationally, we define a game where an agent may choose her habit, which is either her reciprocation attitude (i or ii), or both her reciprocation attitude and weight. We characterize the Nash equilibria of these games and consider their effi- ciency. We find that the less kind agents should adjust to the kinder agents to improve both their own utility as well as the social welfare. This constitutes advice on improving coopera- tion and explains real life phenomena in human interaction, such as the societal benefits from adopting the behavior of the kindest person, or becoming more polite as one grows up. To reference this document use: http://resolver.tudelft.nl/uuid:e871f1bb-1fab-4e66-bc48-06627220c194 DOI https://doi.org/10.3233/978-1-61499-672-9-417 Publisher IOS Press ISBN 978-1-61499-671-2 Source ECAI 2016: 22nd European Conference on Artificial Intelligence Event ECAI 2016, 2016-08-29 → 2016-09-02, World Forum, The Hague, Netherlands Series Frontiers in Artificial Intelligence and Applications, 0922-6389, 285 Part of collection Institutional Repository Document type conference paper Rights © 2016 G. Polevoy, M.M. de Weerdt, C.M. Jonker Files PDF FAIA285_0417.pdf 417.03 KB Close viewer /islandora/object/uuid:e871f1bb-1fab-4e66-bc48-06627220c194/datastream/OBJ/view