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Awareness has been shown to be a useful addition to standard epistemic logic for many applications. However, standard propositional logics for knowledge and awareness cannot express the fact that an… (More)

- Joseph Y. Halpern, Leandro Chaves Rêgo
- AAMAS
- 2006

Standard game theory assumes that the structure of the game is common knowledge among players. We relax this assumption by considering extensive games where agents may be unaware of the complete… (More)

- Joseph Y. Halpern, Leandro Chaves Rêgo
- IJCAI
- 2007

There has been a great deal of work on characterizing the complexity of the satisfiability and validity problem for modal logics. In particular, Ladner showed that the satisfiability problem for all… (More)

- Leandro Chaves Rêgo, Terrence L. Fine
- ISIPTA
- 2005

A Chaotic Probability model is a usual set of probability measures, M, the totality of which is endowed with an objective, frequentist interpretation as opposed to being viewed as a statistical… (More)

- Joseph Y. Halpern, Leandro Chaves Rêgo
- TARK
- 2005

We analyze a model of interactive unawareness introduced by Heifetz, Meier and Schipper (HMS). We consider two axiomatizations for their model, which capture different notions of validity. These… (More)

- Joseph Y. Halpern, Leandro Chaves Rêgo
- Mathematical Social Sciences
- 2009

In earlier work [Halpern and Rêgo 2006b], we proposed a logic that extends the Logic of General Awareness of Fagin and Halpern [1988] by allowing quantification over primitive propositions. This… (More)

- Leandro Chaves Rêgo, Joseph Y. Halpern
- TARK
- 2007

Most work in game theory assumes that players are perfect reasoners and have common knowledge of all significant aspects of the game. In earlier work [Halpern and Rêgo 2006], we proposed a… (More)

Applying unawareness belief structures introduced in Heifetz, Meier, and Schipper (2013a), we develop Bayesian games with unawareness, define equilibrium, and prove existence. We show how equilibria… (More)

- Cecilio Pimentel, Leandro Chaves Rêgo
- WCNC
- 1999

We study the performance of a decision feedback decoder (DFD) for convolutional codes over an interleaved burst channel. The DFD adaptively estimates channel reliability information from previous… (More)

- Aviad Heifetz, Martin Meier, +6 authors Klaus Nehring
- 2011

We define a generalized state-space model with interactive unawareness and probabilistic beliefs. Such models are desirable for potential applications of asymmetric unawareness. Applying our… (More)