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The theory of argumentation is a rich, interdisciplinary area of research straddling the fields of artificial intelligence, philosophy, communication studies, linguistics, and psychology. In the last years, significant progress has been made in understanding the theoretical properties of different argumentation logics. However, one major barrier to the(More)
Approaches to computer game playing based on (typically α −β) search of the tree of possible move sequences combined with an evaluation function have been successful for many games, notably Chess. For games with large search spaces and complex positions, such as Go, these approaches are less successful and we are led to seek alternative approaches. One such(More)
As Service Descriptions formalisms increase in maturity, significant issues remain regarding how the description instances will actually be published, shared and discovered. By way of discussion and description of a prototype Service Description Search service, this paper discusses the distinction between the registry based approaches currently underway for(More)
When shall I fly to New York? Which airline should I choose? How are these related to which airport I arrive at, to how I might travel into the city and to where I choose to stay? Many current and potential applications of agents involve reasoning and communicating about multiple interel-lated choices. To date however, most proposals for communication in(More)
Coalition formation problems arise when groups of agents need to work together to achieve tasks in an environment ¿ such as bidding for a contract or bulk buying goods. The work presented here shows how current theories for coalition formation can be combined with notions from iterative games to cover cases where populations of agents must solve coalition(More)
The use of ICT solutions applied to Healthcare in distributed scenarios should not only provide improvements in the distributed processes and services they are targeted to assist but also provide ways to trace all the meaningful events and decisions taken in such distributed scenario. Provenance may be an innovative way to trace such events and decisions in(More)
Despite several examples of deployed agent systems, there remain barriers to the large-scale adoption of agent technologies. In order to understand these barriers, this paper considers aspects of marketing theory which deal with diffusion of innovations and their relevance to the agents domain and the current state of diffusion of agent technologies. In(More)
The notion of autonomous agents populating large-scale open environments, such as the public Internet, that are able to dynamically discover one another, interact and synthesise new software applications or results has become one of the key technology visions of the past few years. This Agentcities testbed represents one of the largest attempts to date to(More)