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Belief change in branching time: AGM-consistency and iterated revision
Bonanno, Giacomo - Economics Department, University of California-Davis - 2010
We study belief change branching-time structures. First, we identify a property of branching-time frames that is equivalent to AGM-consistency, which is defined as follows. A frame is AGM-consistent if the partial belief revision function associated with an arbitrary state-instant pair and an...
Persistent link: https://www.econbiz.de/10008620361
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Temporal interaction of information and belief
Bonanno, Giacomo - Economics Department, University of California-Davis - 2005
The temporal updating of an agent’s beliefs in response to a flow of information is modeled in a simple modal logic … that, for every date t , contains a normal belief operator B_t and a non-normal information operator I_t which is analogous …
Persistent link: https://www.econbiz.de/10008620408
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Temporal Belief Revision Rationalized by Plausibility Orderings
Bonanno, Giacomo - Economics Department, University of California-Davis - 2007
Within the class of structures introduced in [G. Bonanno, Axiomatic characterization of the AGM theory of belief revision in a temporal logic, Artificial Intelligence, 171 (2007), 144-160] we consider the subclass satisfying the property that, for every state-instant pair (omega,t), there is an...
Persistent link: https://www.econbiz.de/10008620457
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Axiomatization of the AGM theory of belief revision in a temporal logic
Bonanno, Giacomo - Economics Department, University of California-Davis - 2006
It is natural to think of belief revision as the interaction of belief and information over time. Thus branching …, besides the ""next-time"" temporal operator, contains a belief operator and an information operator. The first logic is shown …
Persistent link: https://www.econbiz.de/10008620515
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Interactive Unawareness and Speculative Trade
Heifetz, Aviad; Meier, Martin; Schipper, Burkhard C. - 2003
The standard state-spaces of asymmetric information preclude non- trivial forms of unawareness (Dekel, Lipman and … standard information structures with strong properties of knowledge. …
Persistent link: https://www.econbiz.de/10010263088
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Unawareness, Beliefs and Games
Heifetz, Aviad; Meier, Martin; Schipper, Burkhard C. - 2007
We define a generalized state-space model with interactive unawareness and probabilistic beliefs. Such models are desirable for many potential applications of asymmetric unawareness. We develop Bayesian games with unawareness, define equilibrium, and prove existence. We show how equilibria are...
Persistent link: https://www.econbiz.de/10010276586
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Unawareness, beliefs and games
Heifetz, Aviad; Meier, Martin; Schipper, Burkhard C. - 2007
We define a generalized state-space model with interactive unawareness and probabilistic beliefs. Such models are desirable for many potential applications of asymmetric unawareness. We develop Bayesian games with unawareness, define equilibrium, and prove existence. We show how equilibria are...
Persistent link: https://www.econbiz.de/10010276636
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Belief change in branching time: AGM-consistency and iterated revision
Bonanno, Giacomo - 2010
We study belief change in the branching-time structures introduced in [4]. First, we identify a property of branching-time frames that is equivalent to AGM-consistency, which is defined as follows. A frame is AGM-consistent if the partial belief revision function associated with an arbitrary...
Persistent link: https://www.econbiz.de/10010282096
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Filtered belief revision and generalized choice structures
Bonanno, Giacomo - 2020
generalized notion of) choice structure in terms of belief revision by adding: (1) the possibility that an item of ''information …'' might be discarded as not credible (thus dropping the AGM success axiom) and (2) the possibility that an item of information …, while not accepted as fully credible, may still be ''taken seriously'' (we call such items of information ''allowable''). We …
Persistent link: https://www.econbiz.de/10012655885
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A Kripke-Stalnaker-Lewis semantics for AGM belief revision
Bonanno, Giacomo - 2023
We provide a new characterization of AGM belief revision in terms of a Kripke-Stalnaker-Lewis semantics. We consider pointed frames consisting of a set of states, a distinguished state interpreted as the actual state, a Kripke belief relation and a Stalnaker-Lewis selection function. Adding a...
Persistent link: https://www.econbiz.de/10014474493