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Quickest Detection

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Hardcover | 20 November 2008

At a Glance

Hardcover
244 Pages

Dimensions(cm)
24.41 x 16.99 x 1.42

Hardcover

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The problem of detecting abrupt changes in the behavior of an observed signal or time series arises in a variety of fields, including climate modeling, finance, image analysis, and security. Quickest detection refers to real-time detection of such changes as quickly as possible after they occur. Using the framework of optimal stopping theory, this book describes the fundamentals underpinning the field, providing the background necessary to design, analyze, and understand quickest detection algorithms. For the first time the authors bring together results which were previously scattered across disparate disciplines, and provide a unified treatment of several different approaches to the quickest detection problem. This book is essential reading for anyone who wants to understand the basic statistical procedures for change detection from a fundamental viewpoint, and for those interested in theoretical questions of change detection. It is ideal for graduate students and researchers of engineering, statistics, economics, and finance.

Industry Reviews

'Nothing endures but change. This timely book applies Heraclitus' fundamental principle to the processes used to describe change itself. As financial markets ebb and flow, practitioners schooled in quickest detection stand the greatest chance for survival.' Peter Carr, Head of Quantitative Financial Research, Bloomberg
'Quickest Detection is a fascinating read and a nice summary of the state of the art in this area. I would recommend it for use in either coursework or practical engineering.' IEEE Microwave Magazine

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You Can Find This Book In

Non-Fiction Engineering & Technology Energy Technology & Engineering Electrical Engineering Technology in General Engineering in General Mathematics Probability & Statistics Electronics & Communications Engineering Communications Engineering & Telecommunications Electronics Engineering

List of figures	p. x
Preface	p. xi
Frequently used notation	p. xiii
Introduction	p. 1
Probabilistic framework	p. 6
Introduction	p. 6
Basic setting	p. 6
Probability spaces	p. 6
Random variables	p. 7
Expectation	p. 8
Radon-Nikodym derivatives	p. 10
Conditional expectation and independence	p. 11
Random sequences	p. 15
Martingales and stopping times	p. 18
Martingales	p. 19
Stopping times	p. 24
Continuous-time analogs	p. 26
Brownian motion and Poisson processes	p. 27
Brownian motion	p. 28
Poisson processes	p. 30
Continuous-time semimartingales	p. 32
Stochastic integration	p. 34
Markov optimal stopping theory	p. 40
Introduction	p. 40
Markov optimal stopping problems	p. 40
The finite-horizon case: dynamic programming	p. 41
The general case	p. 41
The Markov case	p. 46
The infinite-horizon case	p. 50
A martingale interpretation of the finite-horizon results	p. 51
The infinite-horizon case for bounded reward	p. 52
The general infinite-horizon case	p. 55
The infinite-horizon case with Markov rewards	p. 59
Markov optimal stopping in continuous time	p. 60
Appendix: a proof of Lemma 3.8	p. 61
Sequential detection	p. 65
Introduction	p. 65
Optimal detection	p. 65
Performance analysis	p. 74
The continuous-time case	p. 81
The Brownian case	p. 81
The Brownian case - an alternative proof	p. 86
An interesting extension of Wald-Wolfowitz	p. 90
The case of Itô processes	p. 91
The Poisson case	p. 93
The compound Poisson case	p. 100
Discussion	p. 101
Bayesian quickest detection	p. 102
Introduction	p. 102
Shiryaev's problem	p. 103
The continuous-time case	p. 109
Brownian observations	p. 109
Poisson observations	p. 115
A probability maximizing approach	p. 122
Other penalty functions	p. 124
A game theoretic formulation	p. 125
Discussion	p. 128
Non-Bayesian quickest detection	p. 130
Introduction	p. 130
Lorden's problem	p. 130
Performance of Page's test	p. 142
The continuous-time case	p. 144
Brownian observations	p. 144
It&ocaron; processes	p. 150
Brownian motion with an unknown drift parameter	p. 152
Poisson observations	p. 154
Asymptotic results	p. 157
Lorden's approach	p. 158
Brownian motion with two-sided alternatives	p. 167
Comments on the false-alarm constraint	p. 171
Discussion	p. 172
Additional topics	p. 174
Introduction	p. 174
Decentralized sequential and quickest detection	p. 175
Decentralized sequential detection with a fusion center	p. 176
Decentralized quickest detection with a fusion center	p. 184
Decentralized sequential detection without fusion	p. 189
Quickest detection with modeling uncertainty	p. 194
Robust quickest detection	p. 194
Adaptive quickest detection	p. 200
Quickest detection with dependent observations	p. 201
Quickest detection with independent likelihood ratio sequences	p. 201
Locally asymptotically normal distributions	p. 203
Sequential detection (local hypothesis approach)	p. 205
Quickest detection (local hypothesis approach)	p. 210
Bibliography	p. 213
Index	p. 225
Table of Contents provided by Ingram. All Rights Reserved.

Quickest Detection

At a Glance

Hardcover

Industry Reviews

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Defective items

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