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Summary: LogicBased Subsumption Architecture: Empirical Evaluation
(Status Report)
Eyal Amir and Pedrito MaynardReid II
Computer Science Department
Stanford University
Stanford, CA 94305
{eyal.amir,pedmayn}@cs.stanford.edu
Abstract
We describe an implementation of the Logic
based Subsumption Architecture (LSA) [Amir and
MaynardReid, 1999] , an AI architecture inspired
by Brooks' subsumption architecture but based on
logic. In this architecture, layers of control are
axiomatized in FirstOrder Logic (FOL) and inde
pendent theorem provers derive each layer's goals
given its inputs. Default assumptions in the lower
layers implement subsumption by higher layers.
These assumptions are nonmonotonically retracted
when higher layers draw new conclusions. We de
scribe four layers designed for the task of robot
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