Uncertainty analysis with high dimensional dependence modelling [[electronic resource] /] / Dorota Kurowicka and Roger Cooke

• Record Nr.: UNINA9910143550903321
• Autore: Kurowicka Dorota <1967->
• Pubbl/distr/stampa: Chichester, England ; ; Hoboken, NJ, : Wiley, c2006
• ISBN: 1-280-64995-X; 9786610649952; 0-470-86307-2; 0-470-86308-0
• Descrizione fisica: 1 online resource (308 p.)
• Collana: Wiley series in probability and statistics
• Altri autori (Persone): CookeRoger <1942->
• Disciplina: 003.54; 003/.54
• Soggetti: Uncertainty (Information theory) - Mathematics; Electronic books.
• Lingua di pubblicazione: Inglese
• Formato: Materiale a stampa
• Livello bibliografico: Monografia
• Note generali: Description based upon print version of record.
• Nota di bibliografia: Includes bibliographical references (p. [273]-279) and index.
• Nota di contenuto: Uncertainty Analysis with High Dimensional Dependence Modelling; Contents; Preface; 1 Introduction; 1.1 Wags and Bogsats; 1.2 Uncertainty analysis and decision support: a recent example; 1.3 Outline of the book; 2 Assessing Uncertainty on Model Input; 2.1 Introduction; 2.2 Structured expert judgment in outline; 2.3 Assessing distributions of continuous univariate uncertain quantities; 2.4 Assessing dependencies; 2.5 Unicorn; 2.6 Unicorn projects; 3 Bivariate Dependence; 3.1 Introduction; 3.2 Measures of dependence; 3.2.1 Product moment correlation; 3.2.2 Rank correlation; 3.2.3 Kendall's tau; 3.3 Partial, conditional and multiple correlations3.4 Copulae; 3.4.1 Fr ́echet copula; 3.4.2 Diagonal band copula; 3.4.3 Generalized diagonal band copula; 3.4.4 Elliptical copula; 3.4.5 Archimedean copulae; 3.4.6 Minimum information copula; 3.4.7 Comparison of copulae; 3.5 Bivariate normal distribution; 3.5.1 Basic properties; 3.6 Multivariate extensions; 3.6.1 Multivariate dependence measures; 3.6.2 Multivariate copulae; 3.6.3 Multivariate normal distribution; 3.7 Conclusions; 3.8 Unicorn projects; 3.9 Exercises; 3.10 Supplement; 4 High-dimensional Dependence Modelling; 4.1 Introduction; 4.2 Joint normal transform4.3 Dependence trees; 4.3.1 Trees; 4.3.2 Dependence trees with copulae; 4.3.3 Example: Investment; 4.4 Dependence vines; 4.4.1 Vines; 4.4.2 Bivariate- and copula-vine specifications; 4.4.3 Example: Investment continued; 4.4.4 Partial correlation vines; 4.4.5 Normal vines; 4.4.6 Relationship between conditional rank and partial correlations on a regular vine; 4.5 Vines and positive definiteness; 4.5.1 Checking positive definiteness; 4.5.2 Repairing violations of positive definiteness; 4.5.3 The completion problem; 4.6 Conclusions; 4.7 Unicorn projects; 4.8 Exercises; 4.9 Supplement4.9.1 Proofs; 4.9.2 Results for Section 4.4.6; 4.9.3 Example of fourvariate correlation matrices; 4.9.4 Results for Section 4.5.2; 5 Other Graphical Models; 5.1 Introduction; 5.2 Bayesian belief nets; 5.2.1 Discrete bbn's; 5.2.2 Continuous bbn's; 5.3 Independence graphs; 5.4 Model inference; 5.4.1 Inference for bbn's; 5.4.2 Inference for independence graphs; 5.4.3 Inference for vines; 5.5 Conclusions; 5.6 Unicorn projects; 5.7 Supplement; 6 Sampling Methods; 6.1 Introduction; 6.2 (Pseudo-) random sampling; 6.3 Reduced variance sampling; 6.3.1 Quasi-random sampling; 6.3.2 Stratified sampling6.3.3 Latin hypercube sampling; 6.4 Sampling trees, vines and continuous bbn's; 6.4.1 Sampling a tree; 6.4.2 Sampling a regular vine; 6.4.3 Density approach to sampling regular vine; 6.4.4 Sampling a continuous bbn; 6.5 Conclusions; 6.6 Unicorn projects; 6.7 Exercise; 7 Visualization; 7.1 Introduction; 7.2 A simple problem; 7.3 Tornado graphs; 7.4 Radar graphs; 7.5 Scatter plots, matrix and overlay scatter plots; 7.6 Cobweb plots; 7.7 Cobweb plots local sensitivity: dike ring reliability; 7.8 Radar plots for importance; internal dosimetry; 7.9 Conclusions; 7.10 Unicorn projects
• Sommario/riassunto: Mathematical models are used to simulate complex real-world phenomena in many areas of science and technology. Large complex models typically require inputs whose values are not known with certainty. Uncertainty analysis aims to quantify the overall uncertainty within a model, in order to support problem owners in model-based decision-making. In recent years there has been an explosion of interest in uncertainty analysis. Uncertainty and dependence elicitation, dependence modelling, model inference, efficient sampling, screening and sensitivity analysis, and probabilistic inversion are among t

Blue-chip Black [[electronic resource] ] : Race, class, and status in the new Black middle class / / Karyn Lacy

• Record Nr.: UNINA9910784420703321
• Autore: Lacy Karyn R. <1965->
• Pubbl/distr/stampa: Berkeley, : University of California Press, 2007
• ISBN: 1-282-77218-X; 9786612772184; 0-520-25115-6; 1-4294-8228-1; 0-520-94069-5; 1-4337-0856-6
• Descrizione fisica: 1 online resource (303 p.)
• Collana: George Gund Foundation Imprint in African American Studies
• Disciplina: 305.896/0730722
• Soggetti: African Americans - Social conditions - 1975-; African Americans - Race identity; Middle class - United States; Social status - United States; African Americans - Washington Region - Social conditions; African Americans - Race identity - Washington Region; Middle class - Washington Region; Social status - Washington Region; United States Race relations Case studies; Washington Region Race relations
• Lingua di pubblicazione: Inglese
• Formato: Materiale a stampa
• Livello bibliografico: Monografia
• Note generali: Description based upon print version of record.
• Nota di bibliografia: Includes bibliographical references and index.
• Nota di contenuto: Front matter -- Contents -- Illustrations -- Preface -- Acknowledgments -- Introduction -- 1. Defining the Post-Integration Black Middle Classes -- 2. Social Organization in Washington's Suburbia -- 3. Public Identities: Managing Race in Public Spaces -- 4. Status-Based Identities: Protecting and Reproducing Middle-Class Status -- 5. Race- and Class-Based Identities: Strategic Assimilation in Middle-Class Suburbia -- 6. Suburban Identities: Building Alliances with Neighbors -- Conclusion -- Appendix: A Recipe for Studying the ; Black Middle Class -- Notes -- References -- Index
• Sommario/riassunto: As Karyn R. Lacy's innovative work in the suburbs of Washington, DC, reveals, there is a continuum of middle-classness among blacks, ranging from lower-middle class to middle-middle class to upper-middle class. Focusing on the latter two, Lacy explores an increasingly important social and demographic group: middle-class blacks who live in middle-class suburbs where poor blacks are not present. These "blue-chip black" suburbanites earn well over fifty thousand dollars annually and work in predominantly white professional environments. Lacy examines the complicated sense of identity that individuals in these groups craft to manage their interactions with lower-class blacks, middle-class whites, and other middle-class blacks as they seek to reap the benefits of their middle-class status.