Artificial Intelligence - Special volume on qualitative reasoning about physical systems
Compositional modeling: finding the right model for the job
Artificial Intelligence - Special issue: Qualitative reasoning about physical systems II
Qualitative models of interactions between two populations
AI Communications - Binding Environmental Sciences and Artificial Intelligence
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Ecological theories often explain the behaviour of communities in terms of the underlying interactions that take place between the species that are part of the community. This closely relates to the idea of compositionality within Qualitative Reasoning, in which the model that simulates the behaviour of a larger system is automatically assembled from previously defined elementary units. A recurring question however concerns the viability of this approach, particularly the scalability of such small partial descriptions. In this article we present a fully implemented model and accompanying simulations of the Ants' Garden, a complex system consisting of multiple species with multiple interactions. The Qualitative Reasoning engine automatically assembles these models by reusing a previously created library with partial models of basic processes that govern population behaviour and interactions. The simulations show the typical behaviour of the Ants' Garden as currently known and described by experts, and support the idea that our previously developed library is adequate and scalable to simulate complex system behaviour.