Christopher Walton

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This paper is concerned with the problem of obtaining predictable interactions between groups of agents in open environments when individual agents do not expose their BDI logic. The most popular approaches to this in practise have been to model interaction protocols and to model the deontic constraints imposed by individual agents. Both of these approaches(More)
Two key issues in building multi-agent systems concern their scalability and engineering open systems. We offer solutions to these potential problems by introducing a lifecycle for models of large multi-agent systems. Our proposal connects a model for the collective analysis of agent systems with an individual-based model. This approach leads on to a(More)
Inspired by computational linguistic approaches to annotate the structures that occur in human dialogue, this paper describes a technique which encodes these structures as transformations applied to a protocol language. Agents can have a controlled mechanism to synthesise and communicate their interaction protocol during their participation in a multiagent(More)
This paper is concerned with the problem of obtaining predictable interactions between groups of agents in open environments when individual agents do not expose their bdi logic. The most popular approaches to this in practise have been to model interaction protocols and to model the deontic constraints imposed by individual agents. Both of these approaches(More)
Representation is a fluent. A mismatch between the real world and an agent's representation of it can be signalled by unexpected failures (or successes) of the agent's reasoning. The 'real world' may include the ontologies of other agents. Such mismatches can be repaired by refining or abstracting an agent's ontology. These refinements or abstractions may(More)
Conventional wisdom is that breath acetone may be markedly elevated in type 1 diabetes, but that this only occurs during poor blood glucose control and/or intercurrent illness. In contrast, little is known about breath acetone at more representative everyday blood glucose levels in diabetes. We used selected ion flow tube mass spectrometry to monitor the(More)
Gastrointestinal diseases such as irritable bowel syndrome, Crohn’s disease (CD) and ulcerative colitis are a growing concern in the developed world. Current techniques for diagnosis are often costly, time consuming, inefficient, of great discomfort to the patient, and offer poor sensitivities and specificities. This paper describes the development and(More)