نتایج جستجو برای: situation analysis

تعداد نتایج: 2924352  

1991
Richard S. Sutton

Dyna is an AI architecture that integrates learning, planning, and reactive execution. Learning methods are used in Dyna both for compiling planning results and for updating a model of the eeects of the agent's actions on the world. Planning is incre-mental and can use the probabilistic and ofttimes incorrect world models generated by learning processes. Execution is fully reactive in the sense...

2008
Stavros Vassos Gerhard Lakemeyer Hector J. Levesque

In a seminal paper Lin and Reiter introduced the notion of progression for basic action theories in the situation calculus. The idea is to replace an initial database by a new set of sentences which reflect the changes due to an action. Unfortunately, progression requires secondorder logic in general. In this paper, we introduce the notion of strong progression, a slight variant of Lin and Reit...

2015
Christoph Schwering Gerhard Lakemeyer

A fundamental task in reasoning about action and change is projection, which refers to determining what holds after a number of actions have occurred. A powerful method for solving the projection problem is regression, which reduces reasoning about the future to reasoning about the initial state. In particular, regression has played an important role in the situation calculus and its epistemic ...

2012
Giuseppe De Giacomo Yves Lespérance Fabio Patrizi

We define a notion of bounded action theory in the situation calculus, where the theory entails that in all situations, the number of ground fluent atoms is bounded by a constant. Such theories can still have an infinite domain and an infinite set of states. We argue that such theories are fairly common in applications, either because facts do not persist indefinitely or because one eventually ...

Journal: :Journal of Applied Non-Classical Logics 2003
Robert Demolombe

We propose a translation into Modal Logic of the ideas that formalise belief change in the Situation Calculus. This translation is extended to the case of revision. In the conclusion is presented a set of open issues.

2007
Lars Niklasson Maria Riveiro Fredrik Johansson Anders Dahlbom Göran Falkman Tom Ziemke Christoffer Brax Thomas Kronhamn Martin Smedberg Håkan Warston Per M. Gustavsson

The use of technology to assist human decision making is not a novel idea. However, we argue that there is a need for a unified model which synthesizes and extends existing models. In this paper, we give two perspectives on situation analysis: a technological perspective and a human perspective. These two perspectives are merged into a unified situation analysis model for semi-automatic, automa...

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