Art of Finding Hidden Risks
Sidney Resnick
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Naturwissenschaften, Medizin, Informatik, Technik / Mathematik
Beschreibung
This text gives a comprehensive, largely self-contained treatment of multivariate heavy tail analysis. Emphasizing regular variation of measures means theory can be presented systematically and without regard to dimension. Tools are developed that allow a flexible definition of "e;extreme"e; in higher dimensions and permit different heavy tails to coexist on the same state space leading to "e;hidden regular variation"e; and "e;steroidal regular variation"e;. This emphasizes when estimating risks, it is important to choose the appropriate heavy tail. Theoretical foundations lead naturally to statistical techniques; examples are drawn from risk estimation, finance, climatology and network analysis. Treatments target a broad audience in insurance, finance, data analysis, network science and probability modeling. The prerequisites are modest knowledge of analysis and familiarity with the definition of a measure; regular variation of functions is reviewed but is not a focal point.