نتایج جستجو برای: anatomical situation

تعداد نتایج: 291946  

2008
Mehul Bhatt

A dynamical systems approach for modeling changing spatial environments is formalised. The formalisation adheres to the representational and computational semantics of situation calculus and includes a systematic account of all aspects necessary to implement a domain-independent qualitative spatial theory that is applicable across diverse application areas. Foundational to the formalisation is ...

2011
Harmish Khambhaita Geert-Jan M. Kruijff Matei Mancas Mario Gianni Panagiotis Papadakis Fiora Pirri Matia Pizzoli

The robot, on the other hand, is eager to learn both the best sequence of actions, their timing and how they interlace. The cross relation among actions is specified both in terms of time intervals for their execution, and in terms of location in space to cope with the instruction interaction with people and objects in the scene. We outline this process: how to transform the rich information de...

1996
Michael Thielscher

Most solutions to the technical frame problem in theories of actions depend on special axioms like the frame axioms, the law of inertia, or the successor state axioms. In these solutions facts about a situation are regarded and represented as properties which hold in the situation. In this article it is argued that it is often more adequate to view facts about a situation as resources which are...

2005
Steven Shapiro

We model belief change due to noisy sensing, and belief introspection in the framework of the situation calculus. We give some properties of our axiomatization and show that it does not suffer from the problems with combining sensing, introspection, and plausibility update described in Shapiro et al. [2000].

2005
Robert Demolombe Ana María Otermin Fernandez

A method to recognize agent’s intentions is presented in a framework that combines the logic of Situation Calculus and Probability Theory. The method is restricted to contexts where the agent only performs procedures in a given library of procedures, and where the system that intends to recognize the agent’s intentions has a complete knowledge of the actions performed by the agent. An original ...

2006
Keith Devlin

Initially, situation semantics was conceived as essentially synthetic, with a mathematical ontology built up on set theory. Soon after the appearance of [4], however, the authors changed their approach and decided to handle the topic in an analytic fashion, abstracting a mathematical ontology from analyses of natural language use. Situation theory is the name they gave to the underlying mathema...

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...

Journal: :Endoscopy 2002
P Born F Käser T Rösch

rn P et al,A n U n u su lC om m on B ile D u ct Sictu re ... En d ocop y 20034:681 A 75-year-old woman presented at an outside institution with cholestasis following a cholecystectomy procedure, which started laparoscopically but had to be switched to open surgery as a sealed perforation of the gallbladder was detected during the operation. Generally, the anatomical situation was described as v...

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 ...

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