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9 produkter
9 produkter
Del 165 - Lecture Notes in Statistics
Multivariate Dispersion, Central Regions, and Depth
The Lift Zonoid Approach
Häftad, Engelska, 2002
1 073 kr
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This book introduces a new representation of probability measures, the lift zonoid representation, and demonstrates its usefulness in statistical applica tions. The material divides into nine chapters. Chapter 1 exhibits the main idea of the lift zonoid representation and surveys the principal results of later chap ters without proofs. Chapter 2 provides a thorough investigation into the theory of the lift zonoid. All principal properties of the lift zonoid are col lected here for later reference. The remaining chapters present applications of the lift zonoid approach to various fields of multivariate analysis. Chap ter 3 introduces a family of central regions, the zonoid trimmed regions, by which a distribution is characterized. Its sample version proves to be useful in describing data. Chapter 4 is devoted to a new notion of data depth, zonoid depth, which has applications in data analysis as well as in inference. In Chapter 5 nonparametric multivariate tests for location and scale are in vestigated; their test statistics are based on notions of data depth, including the zonoid depth. Chapter 6 introduces the depth of a hyperplane and tests which are built on it. Chapter 7 is about volume statistics, the volume of the lift zonoid and the volumes of zonoid trimmed regions; they serve as multivariate measures of dispersion and dependency. Chapter 8 treats the lift zonoid order, which is a stochastic order to compare distributions for their dispersion, and also indices and related orderings.
605 kr
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Del 401 - Lecture Notes in Economics and Mathematical Systems
Stochastic Orders and Applications
A Classified Bibliography
Häftad, Engelska, 1993
1 073 kr
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A bibliography on stochastic orderings. Was there a real need for it? In a time of reference databases as the MathSci or the Science Citation Index or the Social Science Citation Index the answer seems to be negative. The reason we think that this bibliog raphy might be of some use stems from the frustration that we, as workers in the field, have often experienced by finding similar results being discovered and proved over and over in different journals of different disciplines with different levels of mathematical so phistication and accuracy and most of the times without cross references. Of course it would be very unfair to blame an economist, say, for not knowing a result in mathematical physics, or vice versa, especially when the problems and the languages are so far apart that it is often difficult to recognize the analogies even after further scrutiny. We hope that collecting the references on this topic, regardless of the area of application, will be of some help, at least to pinpoint the problem. We use the term stochastic ordering in a broad sense to denote any ordering relation on a space of probability measures. Questions that can be related to the idea of stochastic orderings are as old as probability itself. Think for instance of the problem of comparing two gambles in order to decide which one is more favorable.
356 kr
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Das Buch bietet eine Einführung in die wichtigsten Methoden der beschreibenden Statistik und ausgewählte Kapitel der Wirtschaftsstatistik, insbesondere in die Indexzahlen und die Messung von Konzentration und Disparität. Die Darstellung zielt auf klare Begriffe, nachvollziehbare Verfahren und Motivation aus den Wirtschaftswissenschaften.
455 kr
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Das Buch bietet eine Einführung in die wichtigsten Methoden der Wahrscheinlichkeitsrechnung und des statistischen Schließens, das heißt, der Schätzung von Parametern und des Testens von Hypothesen. Hinweise zur Durchführung der Verfahren am Computer mit Excel® und SPSS® ergänzen den Text.
1 105 kr
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Martin Beckmann is going to celebrate his sixtieth birthday. This is almost unbelievable considering the vitality, ingenuity, and activity which he continues to show as he always did. It is an honor able and pleasant duty for the whole economics community to show hirn the respect, gratitude, and affection which he deserves. Thus, those' who have contributed to this festschrift may be thought of as a dele gation from a much larger community in which all of us are joined; the editors in particular feel deeply connected with and enriched by the personality and scientific work of Martin Beckmann. Martin Beckmann is one of those rare scholars who are not narrow minded specialists in one field; he has been active in many areas of economics and operations research which rapidly developed since World War 11, and he has contributed original and fruitful ideas in almost all of them. The variety of topics treated in this volume aims to re flect the impressive width of his scientific interests.
286 kr
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Dieses Lehrbuch erklärt die Grundkonzepte der Datenanalyse sowie des statistischen Schätzens und Testens in kompakter Form. Die Darstellung zielt dabei auf eine klare Begriffsbildung und deren Begründung ab. So ist es ein Leichtes, sich das nötige Basiswissen über die Auswertung von Daten, den Umgang mit Wahrscheinlichkeiten und statistische Schlussweisen anzueignen. Zahlreiche Beispiele und Grafiken veranschaulichen die Begriffe. Das Buch richtet sich vornehmlich an Studierende der BWL und der technischen Disziplinen an Fachhochschulen und Universitäten. Es kann aber auch in allen anderen Gebieten zum Einsatz kommen, in denen statistische Methoden gebraucht werden.
520 kr
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Dieses Lehrbuch richtet sich an Studierende im Bachelor- und Masterstudium der wirtschaftswissenschaftlichen Fächer. Es soll die Studierenden in die Lage versetzen, ökonomische Texte zu verstehen und Optimierungsverfahren einzusetzen, und sie auch im gesamten Studium als Nachschlagewerk begleiten. Eine Besonderheit des Buches ist die enge Verknüpfung von mathematischen Begriffen mit solchen der Volkswirtschaftslehre und des Operations Research. Die Autoren legen dabei besonderen Wert auf die anschauliche Darstellung der relevanten Begriffe und Modelle. Vorausgesetzt wird das übliche Schulwissen in Mathematik; jedoch werden die inhaltlichen Schwerpunkte des Abiturs in knapper Form aufgegriffen und wiederholt. Zahlreiche Lernhilfen, durchgerechnete Beispiele und Aufgaben mit Kurzlösungen ermöglichen ein Selbststudium.
Operations Research ’92
Extended Abstracts of the 17th Symposium on Operations Research held at the Universität der Bundeswehr Hamburg at August 25–28, 1992
Häftad, Engelska, 1993
540 kr
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The 17th Symposium on Operations Research was held at Universitat der Bundeswehr Hamburg, August 25-28, 1992, as the annual meeting of the Gesellschaft fur Mathematik, Okonomie and Operations Research (GMOOR). The aim of this book is to provide a timely and comprehensive documentation of the symposium's scientific activities. It contains extended abstracts of most of the papers there. The symposium fell into twelve sections and an overlapping cross-section workshop. The sections covered established fields of theory and application such as (1) mathematical modelling in OR, (2) stochastic models of OR, (3) combinatorial optimization and discrete mathematics, (4) linear and non-linear optimization, (5) systems and control theory, (6) decision support and information systems (7) applications in business and economics, (8) econometrics and statistics, (9) micro-economics and game theory, (10) macro-economics and applied economics, (11) decision theory, utility and risk, (12) banking, finance and insurance.As a novelty and an experiment, a cross-section workshop on Environmental Systems and Economics had been included in the programme which was devoted to a topic of current political and scientific interest.