Physica nov 1999 (14 risultati)

Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Fuzzy sets were introduced by Zadeh (1965) as a means of representing and manipulating data that was not precise, but rather fuzzy. Fuzzy logic pro vides an inference morphology that enables approximate human reasoning capabilities to be applied to knowledge-based systems. The theory of fuzzy logic provides a mathematical strength to capture the uncertainties associ ated with human cognitive processes, such as thinking and reasoning. The conventional approaches to knowledge representation lack the means for rep resentating the meaning of fuzzy concepts. As a consequence, the approaches based on first order logic and classical probablity theory do not provide an appropriate conceptual framework for dealing with the representation of com monsense knowledge, since such knowledge is by its nature both lexically imprecise and noncategorical. The developement of fuzzy logic was motivated in large measure by the need for a conceptual framework which can address the issue of uncertainty and lexical imprecision. Some of the essential characteristics of fuzzy logic relate to the following [242]. - In fuzzy logic, exact reasoning is viewed as a limiting case of ap proximate reasoning. - In fuzzy logic, everything is a matter of degree. - In fuzzy logic, knowledge is interpreted a collection of elastic or, equivalently, fuzzy constraint on a collection of variables. - Inference is viewed as a process of propagation of elastic con straints. - Any logical system can be fuzzified. There are two main characteristics of fuzzy systems that give them better performance für specific applications. 289 pp. Englisch.…

Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Real world investors differ in their tastes and attitudes and they do not have, in general, perfect information about the future prospects of the economy. Most theoretical models, however, assume to the contrary that investors are homogeneous and perfectly informed about the market. In this book, an attempt is made to overcome these shortcomings. In three different case studies, the effect of heterogeneous time preferences, heterogeneous beliefs and imperfect information about the economy's growth on the term structure of interest rates are studied. The initial chapter gives an introduction to the theory of financial markets in continuous time under imperfect information and establishes the existence of an equilibrium with complete markets. 118 pp. Englisch.…

Taschenbuch. Condizione: Neu. This item is printed on demand - Print on Demand Titel. Neuware -Real world investors differ in their tastes and attitudes and they do not have, in general, perfect information about the future prospects of the economy. Most theoretical models, however, assume to the contrary that investors are homogeneous and perfectly informed about the market. In this book, an attempt is made to overcome these shortcomings. In three different case studies, the effect of heterogeneous time preferences, heterogeneous beliefs and imperfect information about the economy's growth on the term structure of interest rates are studied. The initial chapter gives an introduction to the theory of financial markets in continuous time under imperfect information and establishes the existence of an equilibrium with complete markets.Physica Verlag, Tiergartenstr. 17, 69121 Heidelberg 128 pp. Englisch.…

Taschenbuch. Condizione: Neu. This item is printed on demand - Print on Demand Titel. Neuware -Fuzzy sets were introduced by Zadeh (1965) as a means of representing and manipulating data that was not precise, but rather fuzzy. Fuzzy logic pro vides an inference morphology that enables approximate human reasoning capabilities to be applied to knowledge-based systems. The theory of fuzzy logic provides a mathematical strength to capture the uncertainties associ ated with human cognitive processes, such as thinking and reasoning. The conventional approaches to knowledge representation lack the means for rep resentating the meaning of fuzzy concepts. As a consequence, the approaches based on first order logic and classical probablity theory do not provide an appropriate conceptual framework for dealing with the representation of com monsense knowledge, since such knowledge is by its nature both lexically imprecise and noncategorical. The developement of fuzzy logic was motivated in large measure by the need for a conceptual framework which can address the issue of uncertainty and lexical imprecision. Some of the essential characteristics of fuzzy logic relate to the following [242]. ¿ In fuzzy logic, exact reasoning is viewed as a limiting case of ap proximate reasoning. ¿ In fuzzy logic, everything is a matter of degree. ¿ In fuzzy logic, knowledge is interpreted a collection of elastic or, equivalently, fuzzy constraint on a collection of variables. ¿ Inference is viewed as a process of propagation of elastic con straints. ¿ Any logical system can be fuzzified. There are two main characteristics of fuzzy systems that give them better performance für specific applications.Physica Verlag, Tiergartenstr. 17, 69121 Heidelberg 304 pp. Englisch.…

Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Das zweibändige Lehrbuch Betriebswirtschaftslehre im Grundstudium wird nun durch ein Übungsbuch ergänzt, in dem der relevante Lehrstoff durch verschiedene Arten von Übungsaufgaben wiederholt und vertieft wird. Dabei liegt der Schwerpunkt teilweise auf der theoretischen Durchdringung von Sachverhalten, teilweise auf der Anwendung der erlernten Methoden auf konkrete Problemstellungen. Das Buch kann sowohl vorlesungsbegleitend als auch im Selbststudium sowie zur Prüfungsvorbereitung eingesetzt werden. Anhand der sorgfältig erstellten Musterlösungen ist eine Leistungskontrolle in Lehrgebieten, die üblicherweise in einem betriebswirtschaftlichen Grundstudium vermittelt werden, möglich. 358 pp. Deutsch.…

Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -When writing the preface the main work has been done. What remains is thanking all those people who directly or indirectly contributed to the out come. My thanks go to my family and friends for their encouragement towards the completion of this book. Among the academic profession, I would like to thank Prof. Dr. Dr. Harald Scherf, my academic teacher, first. During the years at Hamburg University I benefitted especially from his profound knowledge of Keynesian theory. His way of examining an argument in an unbiased way helped me a lot to carry out the reseach I wanted to do. His confidence enabled me to finish the work. A part of the book was written while I was a visiting fellow at DELTA, Paris, where I am particularly indebted to Roger Guesnerie. I have benefitted from his encouragement, advice, and gentle criticism during discussions and seminars, especially on the topic of the time structure of economic dynamics. I would like to acknowledge the hospitality and stimulating atmosphere at DELTA. Different versions of the manuscript, or parts of it have been read by Prof. Dr. Manfred Holler, Dr. Jorg Bibow and Dr. Gabriele Kasten. Their comments and suggestions were quite helpul and are gratefully acknowledged. Additionally, I have to thank Prof. Dr. M. Funke and Prof. Dr. V. Timmer mann. 204 pp. Englisch.…

Taschenbuch. Condizione: Neu. This item is printed on demand - Print on Demand Titel. Neuware -When writing the preface the main work has been done. What remains is thanking all those people who directly or indirectly contributed to the out come. My thanks go to my family and friends for their encouragement towards the completion of this book. Among the academic profession, I would like to thank Prof. Dr. Dr. Harald Scherf, my academic teacher, first. During the years at Hamburg University I benefitted especially from his profound knowledge of Keynesian theory. His way of examining an argument in an unbiased way helped me a lot to carry out the reseach I wanted to do. His confidence enabled me to finish the work. A part of the book was written while I was a visiting fellow at DELTA, Paris, where I am particularly indebted to Roger Guesnerie. I have benefitted from his encouragement, advice, and gentle criticism during discussions and seminars, especially on the topic of the time structure of economic dynamics. I would like to acknowledge the hospitality and stimulating atmosphere at DELTA. Different versions of the manuscript, or parts of it have been read by Prof. Dr. Manfred Holler, Dr. Jorg Bibow and Dr. Gabriele Kasten. Their comments and suggestions were quite helpul and are gratefully acknowledged. Additionally, I have to thank Prof. Dr. M. Funke and Prof. Dr. V. Timmer mann.Physica Verlag, Tiergartenstr. 17, 69121 Heidelberg 204 pp. Englisch.…

Buch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Presented are innovative teaching and learning techniques for the teaching of knowledge-based paradigms. The main knowledge-based intelligent paradigms are expert systems, artificial neural networks, fuzzy systems and evolutionary computing. Expert systems are designed to mimic the performance of biological systems. Artificial neural networks can mimic the biological information processing mechanism in a very limited sense. Evolutionary computing algorithms are used for optimization applications, and fuzzy logic provides a basis for representing uncertain and imprecise knowledge. 334 pp. Englisch.…

Buch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -1. When I was asked by the editors of this book to write a foreword, I was seized by panic. Obviously, neither I am an expert in Knowledge Representation in Fuzzy Databases nor I could have been beforehand unaware that the book's contributors would be some of the most outstanding researchers in the field. However, Amparo Vila's gentle insistence gradually broke down my initial resistance, and panic then gave way to worry. Which paving stones did I have at my disposal for making an entrance to the book After thinking about it for some time, I concluded that it would be pretentious on my part to focus on the subjects which are dealt with directly in the contributions presented, and that it would instead be better to confine myself to making some general reflections on knowledge representation given by imprecise information using fuzzy sets; reflections which have been suggested to me by some words in the following articles such as: graded notions, fuzzy objects, uncertainty, fuzzy implications, fuzzy inference, empty intersection, etc. 386 pp. Englisch.…

Buch. Condizione: Neu. This item is printed on demand - Print on Demand Titel. Neuware -1. When I was asked by the editors of this book to write a foreword, I was seized by panic. Obviously, neither I am an expert in Knowledge Representation in Fuzzy Databases nor I could have been beforehand unaware that the book's contributors would be some of the most outstanding researchers in the field. However, Amparo Vila's gentle insistence gradually broke down my initial resistance, and panic then gave way to worry. Which paving stones did I have at my disposal for making an entrance to the book After thinking about it for some time, I concluded that it would be pretentious on my part to focus on the subjects which are dealt with directly in the contributions presented, and that it would instead be better to confine myself to making some general reflections on knowledge representation given by imprecise information using fuzzy sets; reflections which have been suggested to me by some words in the following articles such as: graded notions, fuzzy objects, uncertainty, fuzzy implications, fuzzy inference, empty intersection, etc.Physica Verlag, Tiergartenstr. 17, 69121 Heidelberg 404 pp. Englisch.…

Buch. Condizione: Neu. This item is printed on demand - Print on Demand Titel. Neuware -Presented are innovative teaching and learning techniques for the teaching of knowledge-based paradigms. The main knowledge-based intelligent paradigms are expert systems, artificial neural networks, fuzzy systems and evolutionary computing. Expert systems are designed to mimic the performance of biological systems. Artificial neural networks can mimic the biological information processing mechanism in a very limited sense. Evolutionary computing algorithms are used for optimization applications, and fuzzy logic provides a basis for representing uncertain and imprecise knowledge.Physica Verlag, Tiergartenstr. 17, 69121 Heidelberg 352 pp. Englisch.…

Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Die Mikrosystemtechnik gilt als eine der Schlüsseltechnologien zur Standortsicherung Deutschlands. Marktstudien haben in den letzten Jahren versucht, das Potential dieser Technologie zu quantifizieren, ohne dabei Firmenstrategien, konkurrierende Technologien und nationale Spezialisierungsmuster der Industrie zu berücksichtigen. Dieses Buch beleuchtet die Potentiale der Mikrosystemtechnik qualitativ aus industriestrategischer Sicht. Die Miniaturisierung verläuft danach noch auf vielen Einzelpfaden. Ein querschnitthafter Marktdurchbruch wird erst mittelfristig erwartet. Die deutsche Technologieposition ist vergleichsweise stark. Ausnahmen bestehen in den Bereichen Präzisions- und Feinwerktechnik, dem Werkzeugmaschinenbau und in der Biomedizin und Gentechnik, wo Wettbewerbsrisiken identifiziert wurden. Strategische Handlungsempfehlungen an Industrie und Politik zeichnen dieses Buch aus. 232 pp. Deutsch. …

Taschenbuch. Condizione: Neu. This item is printed on demand - Print on Demand Titel. Neuware -Das zweibändige Lehrbuch Betriebswirtschaftslehre im Grundstudium wird nun durch ein Übungsbuch ergänzt, in dem der relevante Lehrstoff durch verschiedene Arten von Übungsaufgaben wiederholt und vertieft wird. Dabei liegt der Schwerpunkt teilweise auf der theoretischen Durchdringung von Sachverhalten, teilweise auf der Anwendung der erlernten Methoden auf konkrete Problemstellungen. Das Buch kann sowohl vorlesungsbegleitend als auch im Selbststudium sowie zur Prüfungsvorbereitung eingesetzt werden. Anhand der sorgfältig erstellten Musterlösungen ist eine Leistungskontrolle in Lehrgebieten, die üblicherweise in einem betriebswirtschaftlichen Grundstudium vermittelt werden, möglich.Physica Verlag, Tiergartenstr. 17, 69121 Heidelberg 376 pp. Deutsch.…

Taschenbuch. Condizione: Neu. This item is printed on demand - Print on Demand Titel. Neuware -Die Mikrosystemtechnik gilt als eine der Schlüsseltechnologien zur Standortsicherung Deutschlands. Marktstudien haben in den letzten Jahren versucht, das Potential dieser Technologie zu quantifizieren, ohne dabei Firmenstrategien, konkurrierende Technologien und nationale Spezialisierungsmuster der Industrie zu berücksichtigen.Dieses Buch beleuchtet die Potentiale der Mikrosystemtechnik qualitativ aus industriestrategischer Sicht. Die Miniaturisierung verläuft danach noch auf vielen Einzelpfaden. Ein querschnitthafter Marktdurchbruch wird erst mittelfristig erwartet. Die deutsche Technologieposition ist vergleichsweise stark. Ausnahmen bestehen in den Bereichen Präzisions- und Feinwerktechnik, dem Werkzeugmaschinenbau und in der Biomedizin und Gentechnik, wo Wettbewerbsrisiken identifiziert wurden. Strategische Handlungsempfehlungen an Industrie und Politik zeichnen dieses Buch aus.Physica Verlag, Tiergartenstr. 17, 69121 Heidelberg 252 pp. Deutsch. …