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What is Conditional Ranking Function

Chapter 198
Encyclopedia of Artificial Intelligence
The conditional ranking function ?(·|·): A×A ? N?{8} based on the ranking function ? on A is defined such that for all propositions A, B in A: ?(A|B) = ?(AnB) – ?(B) if A ? Ø, and ?(Ø|B) = 8.
Published in Chapter:
Ranking Functions
Franz Huber (California Institute of Technology, USA)
Copyright: © 2009 |Pages: 5
DOI: 10.4018/978-1-59904-849-9.ch198
Abstract
Ranking functions have been introduced under the name of ordinal conditional functions in Spohn (1988; 1990). They are representations of epistemic states and their dynamics. The most comprehensive and up to date presentation is Spohn (manuscript).
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