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QPLEX: A Computational Modeling and Analysis Methodology for Stochastic Systems / by Antonius B. Dieker, Steven T. Hackman

By: Contributor(s): Resource type: Ressourcentyp: Buch (Online)Book (Online)Language: English Series: Springer Series in Operations Research and Financial EngineeringPublisher: Cham : Springer Nature Switzerland, 2025Publisher: Cham : Imprint: Springer, 2025Edition: 1st ed. 2025Description: 1 Online-Ressource(XIV, 355 p. 122 illus., 51 illus. in color.)ISBN:
  • 9783031748707
Subject(s): Additional physical formats: 9783031748691 | 9783031748714 | 9783031748721 | Erscheint auch als: QPLEX: a computational modeling and analysis methodology for stochastic systems. Druck-Ausgabe Cham : Springer Nature Switzerland, 2025. xiv, 355 Seiten | Erscheint auch als: 9783031748714 Druck-Ausgabe | Erscheint auch als: 9783031748721 Druck-AusgabeDDC classification:
  • 003.3 23
DOI: DOI: 10.1007/978-3-031-74870-7Online resources: Summary: -- Preliminaries. -- First Look at QPLEX. -- Part 1 QPLEX Modeling and Calculus. -- Introduction to QPLEX Modeling and Calculus. -- Simple Transition Dynamics. -- Models with Simple Transition Dynamics. -- Advanced Transition Dynamics. -- Models with Advanced Transition Dynamics. -- Conditional and Joint Probabilities. -- Part 2 Graphical QPLEX Calculus. -- Introduction to Graphical QPLEX Calculus. -- Subsystem QPLEX Calculus. -- Conditional Independence. -- Information Structure. -- Graphical QPLEX Calculus with Distributional Programs. -- Efficient Calculation for Distributional Programs. -- Part 3 Foundations. -- Introduction to Foundations. -- Optimality of QPLEX Iterates. -- Exactness Results.Summary: This book introduces QPLEX, a powerful computational framework designed for modeling and analyzing nonstationary stochastic systems with large state spaces. The methodology excels at rapidly and accurately generating approximate distributions of system performance over time, offering a robust tool for understanding the dynamics of such systems. QPLEX circumvents the curse of dimensionality by imposing conditional independence, which may be represented via a probabilistic graphical model, and exploiting model dynamics. It is specifically crafted for transient analysis of nonstationary systems, often encountered in practical applications but rarely addressed by traditional techniques. It can work directly with empirical distributions and requires no stability assumptions. Since its output is not noisy, QPLEX is tailor-made for sensitivity analysis and optimization. The methodology’s few model primitives are flexible enough to specify a rich array of models. For example, models representing queueing networks can exhibit challenging characteristics such as short operational horizons; time-varying arrival rates, service durations, and numbers of servers; and complex routing of entities. The text is accessible to those with engineering, computer science, or mathematics backgrounds and knowledge of probability and stochastic models at the advanced undergraduate level. Many fully worked-out examples aid the comprehension of the concepts and calculations, ensuring readers can effectively apply the methods to real-world systems and making this book a valuable resource for researchers and practitioners alike. This is an open access book.PPN: PPN: 1913348741Package identifier: Produktsigel: ZDB-2-SEB | ZDB-2-SMA | ZDB-2-SXMS | ZDB-2-SOB
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