Download or read book Changes of Problem Representation written by Eugene Fink and published by . This book was released on 2014-01-15 with total page 372 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Changes of Problem Representation written by Eugene Fink and published by Physica. This book was released on 2013-03-20 with total page 360 pages. Available in PDF, EPUB and Kindle. Book excerpt: The purpose of our research is to enhance the efficiency of AI problem solvers by automating representation changes. We have developed a system that improves the description of input problems and selects an appropriate search algorithm for each given problem. Motivation. Researchers have accumulated much evidence on the impor tance of appropriate representations for the efficiency of AI systems. The same problem may be easy or difficult, depending on the way we describe it and on the search algorithm we use. Previous work on the automatic im provement of problem descriptions has mostly been limited to the design of individual learning algorithms. The user has traditionally been responsible for the choice of algorithms appropriate for a given problem. We present a system that integrates multiple description-changing and problem-solving algorithms. The purpose of the reported work is to formalize the concept of representation and to confirm the following hypothesis: An effective representation-changing system can be built from three parts: • a library of problem-solving algorithms; • a library of algorithms that improve problem descriptions; • a control module that selects algorithms for each given problem.
Download or read book Problem Representation in Foreign Policy Decision Making written by Donald A. Sylvan and published by Cambridge University Press. This book was released on 1998-09-13 with total page 364 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume explains the representation of a problem as well as the choice among specified options for its solution.
Download or read book Change of Representation and Inductive Bias written by D. Paul Benjamin and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 359 pages. Available in PDF, EPUB and Kindle. Book excerpt: Change of Representation and Inductive Bias One of the most important emerging concerns of machine learning researchers is the dependence of their learning programs on the underlying representations, especially on the languages used to describe hypotheses. The effectiveness of learning algorithms is very sensitive to this choice of language; choosing too large a language permits too many possible hypotheses for a program to consider, precluding effective learning, but choosing too small a language can prohibit a program from being able to find acceptable hypotheses. This dependence is not just a pitfall, however; it is also an opportunity. The work of Saul Amarel over the past two decades has demonstrated the effectiveness of representational shift as a problem-solving technique. An increasing number of machine learning researchers are building programs that learn to alter their language to improve their effectiveness. At the Fourth Machine Learning Workshop held in June, 1987, at the University of California at Irvine, it became clear that the both the machine learning community and the number of topics it addresses had grown so large that the representation issue could not be discussed in sufficient depth. A number of attendees were particularly interested in the related topics of constructive induction, problem reformulation, representation selection, and multiple levels of abstraction. Rob Holte, Larry Rendell, and I decided to hold a workshop in 1988 to discuss these topics. To keep this workshop small, we decided that participation be by invitation only.
Download or read book Use of Representations in Reasoning and Problem Solving written by and published by Routledge. This book was released on 2010 with total page 271 pages. Available in PDF, EPUB and Kindle. Book excerpt: Within an increasingly multimedia focused society, the use of external representations in learning, teaching and communication has increased dramatically. This book explores: how we can theorise the relationship between processing internal and external representations.
Download or read book Automatic Representation Changes in Problem Solving written by Eugene Fink and published by . This book was released on 1999 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Capturing and Assessing Conceptual Change in Problem Solving written by Chwee Beng Lee and published by . This book was released on 2006 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Many studies have shown that using cognitive conflict strategy, which is a common approach to foster conceptual change, is insufficient to induce change (Alervemann & Hague, 1989; Hynd & Alvermann, 1989). Some researchers have advocated problem solving to induce learners in conceptual change process (Jonassen, Howland, Moore, & Marra, 2003; Lesh and Lamon, 1992) as it is central to problem representation (Jonassen, 2003). One way to help learners develop their problem representations is through encouraging learners to build dynamic models of the real world systems. This study argues that the relationship between conceptual change and problem solving is dynamic as they constantly interact with each other. Analyses of this study reveal that students who constructed problem representation did significantly perform better in the post Knowledge Test, and problem solving is to a certain extent determined by the formation of conceptual models. Also, the types of strategies students used to build a coherent understanding which is the central phenomenon are influenced by domain knowledge, structural knowledge, and epistemological beliefs. Students who are more likely to adopt the self questioning strategy not only able to construct better problem representations, but they also undergo significant conceptual changes.
Download or read book Knowledge Representation Reasoning and Declarative Problem Solving written by Chitta Baral and published by Cambridge University Press. This book was released on 2003-01-09 with total page 546 pages. Available in PDF, EPUB and Kindle. Book excerpt: Baral shows how to write programs that behave intelligently, by giving them the ability to express knowledge and to reason. This book will appeal to practising and would-be knowledge engineers wishing to learn more about the subject in courses or through self-teaching.
Download or read book Representations for Genetic and Evolutionary Algorithms written by Franz Rothlauf and published by Physica. This book was released on 2012-12-06 with total page 295 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the field of genetic and evolutionary algorithms (GEAs), much theory and empirical study has been heaped upon operators and test problems, but problem representation has often been taken as given. This monograph breaks with this tradition and studies a number of critical elements of a theory of representations for GEAs and applies them to the empirical study of various important idealized test functions and problems of commercial import. The book considers basic concepts of representations, such as redundancy, scaling and locality and describes how GEAs'performance is influenced. Using the developed theory representations can be analyzed and designed in a theory-guided manner. The theoretical concepts are used as examples for efficiently solving integer optimization problems and network design problems. The results show that proper representations are crucial for GEAs'success.
Download or read book Systematic Approach to the Design of Representation changing Algorithms written by Eugene Fink and published by . This book was released on 1995 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract: "We explore methods for improving the performance of AI problem-solvers by automatically changing problem representations. The performance of all problem-solving systems depends crucially on problem representation. The same problem may be easy or difficult to solve depending on the way we describe it. Researchers have designed a variety of learning algorithms that deduce important information from the description of the problem domain and used the deduced information to improve the representation. Examples of these representation improvements include generating abstraction hierarchies, replacing operators with macros, and decomposing complex problems into subproblems. There has, however, been little research on the common principles underlying representation-improving algorithms and the notion of useful representation changes has remained at an informal level. We present preliminary results on a systematic approach to the design of algorithms for automatically improving representations. We identify the main desirable properties of such algorithms, present a framework for formally specifying these properties, and show how to implement a representation-improving algorithm based on the specification of its properties. We illustrate the use of this approach by developing novel algorithms that improve problem representations."
Download or read book Use of Representations in Reasoning and Problem Solving written by Lieven Verschaffel and published by Routledge. This book was released on 2010-09-13 with total page 351 pages. Available in PDF, EPUB and Kindle. Book excerpt: Within an increasingly multimedia focused society, the use of external representations in learning, teaching and communication has increased dramatically. Whether in the classroom, university or workplace, there is a growing requirement to use and interpret a large variety of external representational forms and tools for knowledge acquisition, problem solving, and to communicate with others. Use of Representations in Reasoning and Problem Solving brings together contributions from some of the world’s leading researchers in educational and instructional psychology, instructional design, and mathematics and science education to document the role which external representations play in our understanding, learning and communication. Traditional research has focused on the distinction between verbal and non-verbal representations, and the way they are processed, encoded and stored by different cognitive systems. The contributions here challenge these research findings and address the ambiguity about how these two cognitive systems interact, arguing that the classical distinction between textual and pictorial representations has become less prominent. The contributions in this book explore: how we can theorise the relationship between processing internal and external representations what perceptual and cognitive restraints can affect the use of external representations how individual differences affect the use of external representations how we can combine external representations to maximise their impact how we can adapt representational tools for individual differences. Using empirical research findings to take a fresh look at the processes which take place when learning via external representations, this book is essential reading for all those undertaking postgraduate study and research in the fields of educational and instructional psychology, instructional design and mathematics and science education.
Download or read book Diagrammatic Representation and Inference written by Amrita Basu and published by Springer Nature. This book was released on 2021-09-21 with total page 570 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book constitutes the refereed proceedings of the 12th International Conference on the Theory and Application of Diagrams, Diagrams 2021, held virtually in September 2021. The 16 full papers and 25 short papers presented together with 16 posters were carefully reviewed and selected from 94 submissions. The papers are organized in the following topical sections: design of concrete diagrams; theory of diagrams; diagrams and mathematics; diagrams and logic; new representation systems; analysis of diagrams; diagrams and computation; cognitive analysis; diagrams as structural tools; formal diagrams; and understanding thought processes. 10 chapters are available open access under a Creative Commons Attribution 4.0 International License via link.springer.com.
Download or read book Principles and Practice of Case based Clinical Reasoning Education written by Olle ten Cate and published by Springer. This book was released on 2017-11-06 with total page 208 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is open access under a CC BY 4.0 license. This volume describes and explains the educational method of Case-Based Clinical Reasoning (CBCR) used successfully in medical schools to prepare students to think like doctors before they enter the clinical arena and become engaged in patient care. Although this approach poses the paradoxical problem of a lack of clinical experience that is so essential for building proficiency in clinical reasoning, CBCR is built on the premise that solving clinical problems involves the ability to reason about disease processes. This requires knowledge of anatomy and the working and pathology of organ systems, as well as the ability to regard patient problems as patterns and compare them with instances of illness scripts of patients the clinician has seen in the past and stored in memory. CBCR stimulates the development of early, rudimentary illness scripts through elaboration and systematic discussion of the courses of action from the initial presentation of the patient to the final steps of clinical management. The book combines general backgrounds of clinical reasoning education and assessment with a detailed elaboration of the CBCR method for application in any medical curriculum, either as a mandatory or as an elective course. It consists of three parts: a general introduction to clinical reasoning education, application of the CBCR method, and cases that can used by educators to try out this method.
Download or read book Principles of Knowledge Representation and Reasoning written by Luigia Carlucci Aiello and published by Morgan Kaufmann. This book was released on 1996 with total page 696 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Equal Representation without Legislation written by Lenita Freidenvall and published by Rowman & Littlefield. This book was released on 2021-04-14 with total page 241 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sweden has for many years been recognized as a model of gender equality, particularly with regards to its high proportion of female parliamentarians. This book traces this path to equal representation between women and men in elected bodies, with a special focus on candidate selection process and the implementation of special measures such as party quotas. Using an approach that is based on feminist institutionalism and discursive institutionalism, the author focuses on institutional reform and change and the ways in which both formal and informal institutions, including rules, practices and norms, as well as key actors’ strategies and alliances, may contribute to our understanding of women’s political representation in Sweden and what these gendered outcomes mean in a wider context.
Download or read book Systematic Approach to the Design of Representation changing Algorithms written by Eugene Fink and published by . This book was released on 1995 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract: "We explore methods for improving the performance of AI problem-solvers by automatically changing problem representations. The performance of all problem-solving systems depends crucially on problem representation. The same problem may be easy or difficult to solve depending on the way we describe it. Researchers have designed a variety of learning algorithms that deduce important information from the description of the problem domain and used the deduced information to improve the representation. Examples of these representation improvements include generating abstraction hierarchies, replacing operators with macros, and decomposing complex problems into subproblems. There has, however, been little research on the common principles underlying representation-improving algorithms and the notion of useful representation changes has remained at an informal level. We present preliminary results on a systematic approach to the design of algorithms for automatically improving representations. We identify the main desirable properties of such algorithms, present a framework for formally specifying these properties, and show how to implement a representation-improving algorithm based on the specification of its properties. We illustrate the use of this approach by developing novel algorithms that improve problem representations."
Download or read book Climate Change Fictions Representations of the Dark Anthropocene written by Jiang Lifu and published by Scientific Research Publishing, Inc. USA. This book was released on 2022-08-11 with total page 348 pages. Available in PDF, EPUB and Kindle. Book excerpt: Climate change fiction to some extent is all about the imagination and representation of the dark Anthropocene, which demonstrates writers’ concerns and anxieties of the predicament humanity might face resulting from dramatic climate change. This book selects and delves into some most crucial climate change novels analyzing how climate change and its consequences are imagined and represented by Western writers from the perspective of risks, community, imagology in the phase of Anthropocene 3.0.
