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Overhearing is gaining attention as a generic method for cooperative monitoring of distributed, open, multiagent systems. It involves monitoring the routine conversations of agents ¿ who know they are being overheard ¿ to assist the agents, assess their progress, or suggest advice. While there have been several investigations of applications and methods of(More)
Recent multi-agent systems (MAS) are built using an <i>open, distributed</i> design. These systems involve various challenges of monitoring geographically-distributed and independently-built multiple agents. <i>Monitoring by overhearing</i> [3] has been found to provide a powerful monitoring approach particularly suited for open distributed MAS settings.(More)
Representing agent conversations is an important aspect of multi-agent applications. Lately, Petri nets have been found to provide certain advantages comparing to other representation approaches. Radically different approaches using Petri nets have been proposed, and yet their relative strengths and weaknesses have not been examined. This paper analyzes the(More)
Open distributed multi-agent systems are gaining interest in the academic community and in industry. In such open settings, agents are often coordinated using standardized agent conversation protocols. The representation of such protocols (for analysis, validation, monitoring, etc) is an important aspect of multi-agent applications. Recently, Petri nets(More)
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