The Robustness of Periodic Orchestrations in Uncertain Evolving Environments

Jorge Castro, Joaquim Gabarro, Maria Serna, Alan Stewart

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

A framework for assessing the robustness of long-duration repetitive orchestrations in uncertain evolving environments is proposed. The model assumes that service-based evaluation environments are stable over short time-frames only; over longer periods service-based environments evolve as demand fluctuates and contention for shared resources varies. The behaviour of a short-duration orchestration E in a stable environment is assessed by an uncertainty profile U and a corresponding zero-sum angel-daemon game Γ(U) [2]. Here the angel-daemon approach is extended to assess evolving environments by means of a subfamily of stochastic games. These games are called strategy oblivious because their transition probabilities are strategy independent. It is shown that the value of a strategy oblivious stochastic game is well defined and that it can be computed by solving a linear system. Finally, the proposed stochastic framework is used to assess the evolution of the Gabrmn IT system.
Original languageEnglish
Title of host publicationSymbolic and Quantitative Approaches to Reasoning with Uncertainty: 13th European Conference, ECSQARU 2015, Compiègne, France, July 15-17, 2015. Proceedings
PublisherSpringer
Pages129-140
Number of pages11
ISBN (Electronic)9783319208077
ISBN (Print)9783319208060
DOIs
Publication statusPublished - 12 Jul 2015
EventThe 13th European Conferences on Symbolic and Quantitative Approaches to Reasoning with Uncertainty (ECSQARU'15) - Compiegne, France
Duration: 15 Jul 201517 Jul 2015

Publication series

NameLecture Notes in Computer Science
PublisherSpringer
Volume9161

Conference

ConferenceThe 13th European Conferences on Symbolic and Quantitative Approaches to Reasoning with Uncertainty (ECSQARU'15)
CountryFrance
CityCompiegne
Period15/07/201517/07/2015

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