A qualitative physics based on confluences
Artificial Intelligence - Special volume on qualitative reasoning about physical systems
Artificial Intelligence - Special volume on qualitative reasoning about physical systems
Commonsense reasoning about causality: deriving behavior from structure
Artificial Intelligence - Special volume on qualitative reasoning about physical systems
Qualitative analysis of MOS circuits
Artificial Intelligence - Special volume on qualitative reasoning about physical systems
Qualitative reasoning about physical systems
Qualitative reasoning about physical systems
Artificial Intelligence
Artificial Intelligence
Qualitative reasoning: modeling and simulation with incomplete knowledge
Automatica (Journal of IFAC)
Readings in qualitative reasoning about physical systems
Readings in qualitative reasoning about physical systems
The qualitative process engine
Readings in qualitative reasoning about physical systems
Towards a theory of access-limited logic for knowledge representation
Proceedings of the first international conference on Principles of knowledge representation and reasoning
Building Large Knowledge-Based Systems; Representation and Inference in the Cyc Project
Building Large Knowledge-Based Systems; Representation and Inference in the Cyc Project
AI Research in the Context of a Multifunctional Knowledge Base: The BotanyKnowledge Base Project
AI Research in the Context of a Multifunctional Knowledge Base: The BotanyKnowledge Base Project
Model-based monitoring of dynamic systems
IJCAI'89 Proceedings of the 11th international joint conference on Artificial intelligence - Volume 2
The limits of qualitative simulation
IJCAI'85 Proceedings of the 9th international joint conference on Artificial intelligence - Volume 1
Taming intractible branching in qualitative simulation
IJCAI'87 Proceedings of the 10th international joint conference on Artificial intelligence - Volume 2
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Qualitative reasoning can, and should, be decomposed into a model-building task, which creates a qualitative differential equation (QDE) as a model of a physical situation, and a qualitative simulation task, which starts with a QDE, and predicts the possible behaviors following from the model. In support of this claim, we present QPC, a model builder that takes the general approach of Qualitative Process Theory [Forbus, 1984], describing a scenario in terms of views, processes, and influences. However, QPC builds QDEs for simulation by QSIM, which gives it access to a variety of mathematical advances in qualitative simulation incorporated in QSIM. We present QPC and its approach to Qualitative Process Theory, provide an example of building and simulating a model of a non-trivial mechanism, and compare the representation and implementation decisions underlying QPC with those of QPE [Falkenhainer and Forbus, 1988; Forbus, 1990].