Infobase change: A first approximation [Book Review]

Abstract

Generalisations of theory change involving operations on arbitrary sets ofwffs instead of on belief sets (i.e., sets closed under a consequencerelation), have become known as base change. In one view, a base should bethought of as providing more structure to its generated belief set, whichmeans that it can be employed to determine the theory contraction operationassociated with a base contraction operation. In this paper we follow suchan approach as the first step in defining infobase change. We think of an infobase as a finite set of wffs consisting of independently obtainedbits of information. Taking AGM theory change (Alchourrón et al. 1985) as the general framework, we present a method that uses the structure of aninfobase B to obtain an AGM theory contraction operation for contractingthe belief set Cn(B). Both the infobase and the obtained theory contraction operation then play a role in constructing a unique infobasecontraction operation. Infobase revision is defined in terms of an analogueof the Levi Identity, and it is shown that the associated theory revisionoperation satisfies the AGM postulates for revision. Because every infobaseis associated with a unique infobase contraction and revision operation, the method also allows for iterated base change.

Download options

PhilArchive



    Upload a copy of this work     Papers currently archived: 72,694

External links

Setup an account with your affiliations in order to access resources via your University's proxy server

Through your library

Analytics

Added to PP
2009-01-28

Downloads
44 (#261,325)

6 months
1 (#388,319)

Historical graph of downloads
How can I increase my downloads?

References found in this work

Two Modellings for Theory Change.Adam Grove - 1988 - Journal of Philosophical Logic 17 (2):157-170.
Knowledge in Flux.Henry E. Kyburg & Peter Gardenfors - 1993 - Noûs 27 (4):519-521.
On the Logic of Iterated Belief Revision.Adnan Darwiche & Judea Pearl - 1997 - Artificial Intelligence 89 (1-2):1-29.

View all 13 references / Add more references

Citations of this work

Non-Prioritized Ranked Belief Change.Samir Chopra, Aditya Ghose & Thomas Meyer - 2003 - Journal of Philosophical Logic 32 (4):417-443.
On the Semantics of Combination Operations.Thomas Meyer - 2001 - Journal of Applied Non-Classical Logics 11 (1-2):59-84.

Add more citations

Similar books and articles

Foundational Belief Change.Abhaya C. Nayak - 1994 - Journal of Philosophical Logic 23 (5):495 - 533.
Resource-Bounded Belief Revision and Contraction.Mark Jago - 2006 - In P. Torroni, U. Endriss, M. Baldoni & A. Omicini (eds.), Declarative Agent Languages and Technologies III. Springer. pp. 141--154.
Reversing the Levi Identity.Sven Ove Hansson - 1993 - Journal of Philosophical Logic 22 (6):637 - 669.
Severe Withdrawal (and Recovery).Hans Rott & Maurice Pagnucco - 1999 - Journal of Philosophical Logic 28 (5):501-547.
Basic Infobase Change.Thomas Meyer - 2001 - Studia Logica 67 (2):215-242.