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Mediation services are becoming increasingly important in multiagent systems. An agent that can act on behalf of another agent is one important example of mediation functionality commonly required. Within this paper, we define and analyze PROXY and PROXY-WEAK communicative acts that formally specify semantics for interacting with middle agents that provide proxy services. These two communicative acts...
Agent communication languages defined using joint intention theory have enjoyed a long research history. A number of performatives have been defined and refined in this literature with particular emphasis on the basic performatives of REQUEST and INFORM, which subsequently have many subtle versions. Even these less common performatives have been extended and refined multiple times. In many cases the...
Less than half of the individuals of working age with visual impairments are employed and a significant barrier to employment is effective computer access. Screen reader applications offer some help but have limited context sensitivity and are of limited use in applications with dynamic “interfaces” like web pages. Sophisticated screen readers provide aid through application-specific scripts but their...
As interactions between agents become more common, it will become very important to be able to characterize and perhaps even guarantee an agent's level of autonomy. We will both want agents to perform tasks on their own while at the same time both remaining controllable by ourselves and secure from control and manipulation by others. Most intuitions of autonomy seem to involve the notion that it is...
Many agents are fielded within environments requiring modeling traditional organizational structures such as military hierarchies and corporations, with their associated authority relationships and a strong form of responsibility associated with subordinate agents. Addressing the needs above, we have developed an integrated semantic framework for modeling and operationalizing authority relationships...
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