The Qualitative Difference Resolution Rule

نویسنده

  • Tom Bylander
چکیده

Consolidation is inferring the behavioral description of a device by composing the behavioral descriptions of its components, e.g ., deriving the qualitative differential equations (QDEs) of adevice from those of its components . In previous work, Dormoy and Raiman described the qualitative resolution rule, which is a general rule for deriving QDEs of combinations of components . However, the qualitative resolution rule is intractable in general . As a step toward understanding tractable qualitative reasoning, I present a new QDE resolution rule, the qualitative difference resolution rule, that supports the tractable consolidation of components in which direction of flow is dependent on the signs of pressure differences . Pipes and containers are general types of components that match this rule . The pressure regulator example also matches this rule .

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تاریخ انتشار 1991