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  • 1
    Digitale Medien
    Digitale Medien
    Springer
    Queueing systems 17 (1994), S. 213-234 
    ISSN: 1572-9443
    Schlagwort(e): Point processes ; stochastic intensity kernels ; (A,m)-processes ; asymptotic stationarity ; coupling
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Informatik
    Notizen: Abstract We show convergence in variation to a unique stationary state for a class of point processes (respectively, stochastic sequences) with stochastic intensity kernels (respectively, transition probabilities) including the (A,m)-processes of Lindvall [12]. This is done under two basic conditions: first, the random memory of the processes considered is consistent or non-reusable (that is, past information not used at a given time cannot be recalled at a later time) and secondly, the kernels have a deterministic fixed component for which the memory is almost surely finite.
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 2
    Digitale Medien
    Digitale Medien
    Springer
    Queueing systems 10 (1992), S. 249-269 
    ISSN: 1572-9443
    Schlagwort(e): Sensitivity analysis ; queues ; point processes ; perturbation analysis ; likelihood ratios ; routing
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Informatik
    Notizen: Abstract The Rare Perturbation Analysis (RPA) method is presented using two approaches: a direct one and an indirect one via a pathwise interpretation of the Likelihood Ratio Method (LRM). These two approaches give a new point of view for the Smoothed Perturbation Analysis (SPA) discussed in Gong [4] and extend the validity of the formulas therein, in particular to the estimation of derivatives of quantities that can be computed over a busy cycle. A heuristic comparison with LRM is given and simulation results are presented to compare the performance of LRM, RPA, and a finite difference RPA in a simple system.
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 3
    Digitale Medien
    Digitale Medien
    Springer
    Discrete event dynamic systems 3 (1993), S. 347-374 
    ISSN: 1573-7594
    Schlagwort(e): sensitivity analysis ; perturbation analysis ; point processes ; Palm distributions ; level-crossing analysis
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Mathematik
    Notizen: Abstract We give stationary estimates for the derivative of the expectation of a nonsmooth function of bounded variationf of the workload in a G/G/1/∞ queue, with respect to a parameter influencing the distribution of the input process. For this, we use an idea of Konstantopoulos and Zazanis [1992] based on the Palm inversion formula, however avoiding a limiting argument by performing the level-crossing analysis thereof globally, via Fubini's theorem. This method of proof allows to treat the case where the workload distribution has a mass at discontinuities off and where the formula of Konstantopoulos and Zazanis [1992] has to be modified. The case where the parameter is the speed of service or/and the time scale factor of the input process is also treated using the same approach.
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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