An Extended Agent BDI Model with Norms, Policies and Contracts

It is important to constitute agent with motivation in agent-based computing. Recent study of the definition of motivation and its effects on reasoning mechanism of agent are not complete. This paper presents a model of agent based on norms, policies and contracts, in which the motivation from external environment can be explicitly expressed and integrated into agent's reasoning process. In order to conduct nonmonotonic reasoning abilities, defeasible logic is imported. The extended agent BDI model (NPCD-agent), relevant BGINPCD logic and reasoning mechanism is the core of this system, which is formally specified in this paper.

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