Semantics Of Belief Change Operators For Intelligent Agents Iteration Postulates And Realizability
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Semantics Of Belief Change Operators For Intelligent Agents Iteration Postulates And Realizability
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Author : K. Sauerwald
language : en
Publisher: IOS Press
Release Date : 2022-11-03
Semantics Of Belief Change Operators For Intelligent Agents Iteration Postulates And Realizability written by K. Sauerwald and has been published by IOS Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022-11-03 with Computers categories.
One of the core problems in artificial intelligence is the modelling of human reasoning and intelligent behaviour. The representation of knowledge, and reasoning about it, are of crucial importance in achieving this. This book, Semantics of Belief Change Operators for Intelligent Agents: Iteration, Postulates, and Realizability, addresses a number of significant research questions in belief change theory from a semantic point of view; in particular, the connection between different types of belief changes and plausibility relations over possible worlds is investigated. This connection is characterized for revision over general classical logics, showing which relations are capturing AGM revision. In addition, those classical logics for which the correspondence between AGM revision and total preorders holds are precisely characterized. AGM revision in the Darwiche-Pearl framework for belief change over arbitrary sets of epistemic states is considered, demonstrating, especially, that for some sets of epistemic states, no AGM revision operator exists. A characterization of those sets of epistemic states for which AGM revision operators exist is presented. The expressive class of dynamic limited revision operators is introduced to provide revision operators for more sets of epistemic states. Specifications for the acceptance behaviour of various belief-change operators are examined, and those realizable by dynamic-limited revision operators are described. The iteration of AGM contraction in the Darwiche-Pearl framework is explored in detail, several known and novel iteration postulates for contraction are identified, and the relationships among these various postulates are determined. With a convincing presentation of ideas, the book refines and advances existing proposals of belief change, develops novel concepts and approaches, rigorously defines the concepts introduced, and formally proves all technical claims, propositions and theorems, significantly advancing the state-of-the-art in this field.
Semantics Of Belief Change Operators For Intelligent Agents
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Author : Kai Sauerwald
language : en
Publisher:
Release Date : 2022
Semantics Of Belief Change Operators For Intelligent Agents written by Kai Sauerwald and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022 with Artificial intelligence categories.
Belief Change In Reasoning Agents
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Author :
language : en
Publisher:
Release Date : 2001
Belief Change In Reasoning Agents written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2001 with categories.
The capability of changing beliefs upon new information in a rational and efficient way is crucial for an intelligent agent. Belief change therefore is one of the central research fields in Artificial Intelligence (AI) for over two decades. In the AI literature, two different kinds of belief change operations have been intensively investigated: belief update, which deal with situations where the new information describes changes of the world; and belief revision, which assumes the world is static. As another important research area in AI, reasoning about actions mainly studies the problem of representing and reasoning about effects of actions. These two research fields are closely related and apply a common underlying principle, that is, an agent should change its beliefs (knowledge) as little as possible whenever an adjustment is necessary. This lays down the possibility of reusing the ideas and results of one field in the other, and vice verse. This thesis aims to develop a general framework and devise computational models that are applicable in reasoning about actions. Firstly, I shall propose a new framework for iterated belief revision by introducing a new postulate to the existing AGM/DP postulates, which provides general criteria for the design of iterated revision operators. Secondly, based on the new framework, a concrete iterated revision operator is devised. The semantic model of the operator gives nice intuitions and helps to show its satisfiability of desirable postulates. I also show that the computational model of the operator is almost optimal in time and space-complexity. In order to deal with the belief change problem in multi-agent systems, I introduce a concept of mutual belief revision which is concerned with information exchange among agents. A concrete mutual revision operator is devised by generalizing the iterated revision operator. Likewise, a semantic model is used to show the intuition and many nice properties of the mutual revision opera.
Flexible Workflows
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Author : L. Grumbach
language : en
Publisher: IOS Press
Release Date : 2023-07-07
Flexible Workflows written by L. Grumbach and has been published by IOS Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2023-07-07 with Computers categories.
Traditional workflow management systems support the fulfillment of business tasks by providing guidance along a predefined workflow model. Due to the shift from mass production to customization, flexibility has become important in recent decades, but the various approaches to workflow flexibility either require extensive knowledge acquisition and modeling, or active intervention during execution. Pursuing flexibility by deviation compensates for these disadvantages by allowing alternative paths of execution at run time without requiring adaptation to the workflow model. This work, Flexible Workflows: A Constraint- and Case-Based Approach, proposes a novel approach to flexibility by deviation, the aim being to provide support during the execution of a workflow by suggesting items based on predefined strategies or experiential knowledge, even in case of deviations. The concepts combine two familiar methods from the field of AI - constraint satisfaction problem solving, and process-oriented case-based reasoning. The combined model increases the capacity for flexibility. The experimental evaluation of the approach consisted of a simulation involving several types of participant in the domain of deficiency management in construction. The book contains 7 chapters covering foundations; domains and potentials; prerequisites; constraint based workflow engine; case based deviation management; prototype; and evaluation, together with an introduction, a conclusion and 3 appendices. Demonstrating high utility values and the promise of wide applicability in practice, as well as the potential for an investigation into the transfer of the approach to other domains, the book will be of interest to all those whose work involves workflow management systems.
From Narratology To Computational Story Composition And Back
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Author : L. Berov
language : en
Publisher: IOS Press
Release Date : 2023-03-10
From Narratology To Computational Story Composition And Back written by L. Berov and has been published by IOS Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2023-03-10 with Computers categories.
Although both deal with narratives, the two disciplines of Narrative Theory (NT) and Computational Story Composition (CSC) rarely exchange insights and ideas or engage in collaborative research. The former has its roots in the humanities, and attempts to analyze literary texts to derive an understanding of the concept of narrative. The latter is in the domain of Artificial Intelligence, and investigates the autonomous composition of fictional narratives in a way that could be deemed creative. The two disciplines employ different research methodologies at contradistinct levels of abstraction, making simultaneous research difficult, while a close exchange between the two disciplines would undoubtedly be desirable, not least because of the complementary approach to their object of study. This book, From Narratology to Computational Story Composition and Back, describes an exploratory study in generative modeling, a research methodology proposed to address the methodological differences between the two disciplines and allow for simultaneous NT and CSC research. It demonstrates how implementing narratological theories as computational, generative models can lead to insights for NT, and how grounding computational representations of narrative in NT can help CSC systems to take over creative responsibilities. It is the interplay of these two strands that underscores the feasibility and utility of generative modeling. The book is divided into 6 chapters: an introduction, followed by chapters on plot, fictional characters, plot quality estimation, and computational creativity, wrapped up by a conclusion. The book will be of interest to all those working in the fields of narrative theory and computational creativity.
Belief Change
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Author : Eduardo Fermé
language : en
Publisher: Springer
Release Date : 2018-05-23
Belief Change written by Eduardo Fermé and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-05-23 with Computers categories.
This book explains how the logic of theory change employs formal models in the investigation of changes in belief states and databases. The topics covered include equivalent characterizations of AGM operations, extended representations of the belief states, change operators not included in the original framework, iterated change, applications of the model, its connections with other formal frameworks, and criticism of the model.
Belief Revision
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Author : Peter Gärdenfors
language : en
Publisher: Cambridge University Press
Release Date : 2003-12-04
Belief Revision written by Peter Gärdenfors and has been published by Cambridge University Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2003-12-04 with Computers categories.
Belief revision is a topic of much interest in theoretical computer science and logic, and it forms a central problem in research into artificial intelligence. This book contains a collection of research articles on belief revision that are right up to date and an introductory chapter that presents a survey of current research in the area and the fundamentals of the theory.
Belief Revision
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Author : Fouad Sabry
language : en
Publisher: One Billion Knowledgeable
Release Date : 2023-06-30
Belief Revision written by Fouad Sabry and has been published by One Billion Knowledgeable this book supported file pdf, txt, epub, kindle and other format this book has been release on 2023-06-30 with Computers categories.
What Is Belief Revision The process of altering one's views in order to take into account a new piece of knowledge is referred to as belief revision. Philosophy, database design, and artificial intelligence are all areas of study that are contributing to research on the logical formalization of belief revision for the construction of rational beings. How You Will Benefit (I) Insights, and validations about the following topics: Chapter 1: Belief revision Chapter 2: Axiom Chapter 3: Deductive reasoning Chapter 4: Abductive reasoning Chapter 5: Inductive logic programming Chapter 6: Non-monotonic logic Chapter 7: Description logic Chapter 8: Dempster-Shafer theory Chapter 9: Default logic Chapter 10: Epistemic modal logic (II) Answering the public top questions about belief revision. (III) Real world examples for the usage of belief revision in many fields. Who This Book Is For Professionals, undergraduate and graduate students, enthusiasts, hobbyists, and those who want to go beyond basic knowledge or information for any kind of belief revision. What is Artificial Intelligence Series The artificial intelligence book series provides comprehensive coverage in over 200 topics. Each ebook covers a specific Artificial Intelligence topic in depth, written by experts in the field. The series aims to give readers a thorough understanding of the concepts, techniques, history and applications of artificial intelligence. Topics covered include machine learning, deep learning, neural networks, computer vision, natural language processing, robotics, ethics and more. The ebooks are written for professionals, students, and anyone interested in learning about the latest developments in this rapidly advancing field. The artificial intelligence book series provides an in-depth yet accessible exploration, from the fundamental concepts to the state-of-the-art research. With over 200 volumes, readers gain a thorough grounding in all aspects of Artificial Intelligence. The ebooks are designed to build knowledge systematically, with later volumes building on the foundations laid by earlier ones. This comprehensive series is an indispensable resource for anyone seeking to develop expertise in artificial intelligence.
Frontiers In Belief Revision
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Author : M. Williams
language : en
Publisher: Springer Science & Business Media
Release Date : 2013-04-17
Frontiers In Belief Revision written by M. Williams and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-04-17 with Computers categories.
Frontiers in Belief Revision is a unique collection of leading edge research in Belief Revision. It contains the latest innovative ideas of highly respected and pioneering experts in the area, including Isaac Levi, Krister Segerberg, Sven Ove Hansson, Didier Dubois, and Henri Prade. The book addresses foundational issues of inductive reasoning and minimal change, generalizations of the standard belief revision theories, strategies for iterated revisions, probabilistic beliefs, multiagent environments and a variety of data structures and mechanisms for implementations. This book is suitable for students and researchers interested in knowledge representation and in the state of the art of the theory and practice of belief revision.
Belief Change In The Presence Of Actions And Observations
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Author : Aaron Hunter
language : en
Publisher:
Release Date : 2006
Belief Change In The Presence Of Actions And Observations written by Aaron Hunter and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006 with Act (Philosophy) categories.
The beliefs of an agent should change due to actions and observations. In particular, actions cause an agent to perform belief update, and observations cause an agent to perform belief revision. However, the interaction between actions and observations can be non-elementary; there are simple examples where it is clear that simply updating and revising in succession does not lead to plausible results. In this dissertation, we consider the belief change that occurs due to an iterated sequence of actions and observations. We assume that the effects of actions are given by a transition system, which can be used to define a belief update operator. We introduce a set of basic postulates that should intuitively be satisfied when a revision is followed by an update, and we use these postulates to define a new belief change operator. The new operator provides a plausible model of iterated belief change in the presence of actions, and it can be characterized by a modified class of systems of spheres. One limitation of this approach to iterated belief change is that it assumes the agent has perfect knowledge of the history of actions executed. We relax this assumption by using ranking functions to represent uncertainty about the actions executed at each point in time. The resulting formalism is able to represent fallible knowledge, erroneous perception, exogenous actions, and failed actions. Our work is distinguished from related work in that we explicitly consider the manner in which action histories affect the interpretation of observations. Our formal tools are useful not only for the representation of simple action domains, but also for the evaluation of related formalisms involving iterated belief change due to action.