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Summary: Learning Partially Observable Deterministic Action Models
Eyal Amir
Computer Science Department
University of Illinois, UrbanaChampaign
Urbana, IL 61801, USA
eyal@cs.uiuc.edu
Abstract
We present the first tractable, exact solution for
the problem of identifying actions' effects in
partially observable STRIPS domains. Our al
gorithms resemble Version Spaces and Logical
Filtering, and they identify all the models that
are consistent with observations. They apply in
other deterministic domains (e.g., with condi
tional effects), but are inexact (may return false
positives) or inefficient (we could not bound
the representation size). Our experiments ver
ify the theoretical guarantees, and show that
we learn STRIPS actions efficiently, with time
that is significantly better than approaches for
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