Community Research and Development Information Service - CORDIS

GAMES-II: a general architecture for medical knowledge-based systems

The project team has defined an epistemological model of medical reasoning which may also be considered a state of the art contribution for an exchange of information in future knowledge-based systems (KBS) networks. Physicians are mainly interested in visible and user-friendly tools. The environment is using development tools (UNIX, LISP, KEE) which are considered best suited for achieving this goal.

The GAMES II epistemological model of medical reasoning splits medical reasoning into 2 steps. The first one is aimed at selecting a set of hypotheses representing plausible solutions to the problem at hand, the second one is aimed at testing them. The model, dubbed select and test model (ST-Model), can represent the 3 generic fundamental medical tasks (diagnosis, therapy planning and monitoring). The ST-Model provides 3 basic model for KBS development and considers 2 different kinds of knowledge taking part m the process: the application ontology and the inference model. The former organises domain categories and their relationships, while the latter describes the problem solving process in terms of the basic inference types (ie abstraction, abduction, deduction, and eliminative induction) together with the mappings to the ontological categories of the domain. Hence, the first requirement for GAMES II is that of making available tools for acquiring both the application ontology and the inference model underlying the behaviour of the target KBS.

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