kavuri@cb.ecn.purdue.edu (Surya N Kavuri ) (05/03/89)
(Ref: AI-journal) Dekleer and Brown seem to have a different
understanding of Causality in device behavior compared to the
views of Simon and Iwasaki.
My understanding is as follows:
Simon etal:
Causality is inherent in the structure of the device.
Simon's approach is based on ordering of variables
in the structural equations given the influence of the
environment(through "exogenous variables").
Dekleer et al:
Causality is evident only from the behavior of the device.
In other words, causality is seen only when the inputs are
specified and propagated through the system.
What is the general feeling about these ?
I agree with the Simon's idea of identifying causality from
the overall structure of the device.
SURYA KAVURI