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Any global consideration of the theme 'Evolution and Cognition' requires a clear definition of what we mean by the term 'cognition'. In contemporary cognitive science, there are two distinct paradigms with contrasting definitions of cognition. The computational theory of mind is based on the syntaxical manipulation of symbolic representations; this paradigm… (More)
The concept of shape space proposed by Perelson and Oster (1979, J. Theor. Biol. 81, 645-670) has been a useful tool for the theoretical immunologists, who have invoked it to model idiotypic binding, which plays a significant role in mathematical models of immune networks. The actual construction of such a space from its definition requires specialized… (More)
In this paper we present POEMS a postoperative expert medical system currently under development in Leeds. The knowledge representation scheme using KR, an object oriented system , and its relation to this medical domain is described. A diagnostic engine based on KR's constraint propagation mechanism is outlined, and a knowledge acquisition scheme… (More)
False positive hepatitis B surface and e antigen results on the Abbott Axsym analyser are causing concern. All users of this technology should be aware of the problem.