Getting the Envisionment Right
نویسنده
چکیده
The central component of commonsense reasoning about causdity is the envisionment: a description of the behavior of a phvsical system that is derived from its structural description by qualitative simulation. Two problems with creating the envisionmcnt are the qualitative representation of quentlty and the detection of previously-unsuspcctcd points ot qualitative change. The representation presetlted here has the expressive power of differenil;ll equations, and the qualitarive envisionment strategy needed ior commonsense knowledge. A detailed example shows IICW it is able to detect a previously unsuspected point at which the system is in stable equilibrium.
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