Download A Future for Knowledge Acquisition: 8th European Knowledge by Luc Steels, Guus Schreiber, Walter Van de Velde PDF

By Luc Steels, Guus Schreiber, Walter Van de Velde

This quantity contains a range of the major papers offered on the 8th eu wisdom Acquisition Workshop (EKAW '94), held in Hoegaarden, Belgium in September 1994.
The ebook demonstrates that paintings within the mainstream of information acquisition results in important sensible effects and places the information acquisition company in a broader theoretical and technological context. The 21 revised complete papers are rigorously chosen key contributions; they handle wisdom modelling frameworks, the identity of well-known parts, technique features, and architectures and purposes. the quantity opens with a considerable preface via the quantity editors surveying the contents.

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Extra info for A Future for Knowledge Acquisition: 8th European Knowledge Acquisition Workshop, EKAW '94 Hoegaarden, Belgium, September 26–29, 1994 Proceedings

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32). Bibliographic notes for first-order logic are provided in Appendix A. The conjunction of axioms EC and associated definitions are taken from a paper by R. Miller and Shanahan (1999), which was later revised and expanded (R. Miller and Shanahan, 2002). 8 Reasoning Types 45 The conjunction of axioms DEC was introduced by Mueller (2004a). R. Miller and Shanahan (2002, p. 452) provide a list of the many formulations of the event calculus in forms of logic programming, in classical logic, in modal logic, and as action languages.

We discuss positive and negative effect axioms, commonly used effect axiom idioms, preconditions, and state constraints. 1 Positive and Negative Effect Axioms In the event calculus, the effects of events are described by two predicates. The predicate Initiates(a,/3, 3) represents that, if an event a occurs at timepoint 3, then fluent fi will be true after 3. The predicate Terminates(a, fi, 3) represents that, if an event a occurs at timepoint 3, then fluent fi will be false after 3. We represent the effects of events using effect axioms.

Miller and Shanahan, 1994) to represent event occurrences with duration (a) Causal constraints (Shanahan, 1999a, sec. 2) (b) Concurrent events and continuous change (sec. 5); adds Cancels, Cancelled, and Trajectory predicates 4. Classical logic event calculus (R. Miller and Shanahan, 1999); forced separation version with more variations (a) Narrative information and planning (sec. 3) (b) Nonnegative time (sec. 1) (c) Initiating and terminating a fluent at the same time produces inconsistency (sec.

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