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This paper presents a technique that supports a knowledge engineer in constructing a qualitative model of a physical device. The technique is specifically aimed at achieving a parsimonious model of device behaviour. First we explain why a model that is composed of general model fragments may still contain irrelevant particles. Then we present a technique(More)
We describe our approach to support the construction of qualitative models used for predicting the behaviour of physical devices. Model speciication is the process of specifying the properties of a particular device at hand and specifying the domain knowledge needed to predict its behaviour. It can be supported by a set of dedicated editors. Model(More)
In this paper we present a technique for automatically generating constraints on parameter derivatives that reduce ambiguity in the behaviour prediction. Starting with a behaviour prediction using an initial library containing general domain knowledge the technique employs feedback about correct and incorrect states of behaviour and knowledge about the(More)
In this paper we investigate the cognitive plau-sibility of an integrated framework for qualitative prediction of behaviour. The framework is based on the KADS expertise modeling approach and integrates diierent approaches to qualitative reasoning. The framework is implemented in a program called GARP. To test the cognitive plau-sibility a physics problem(More)
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