On strong consistency of the variance estimator

  • Authors:
  • Halim Damerdji

  • Affiliations:
  • Department of Industrial Engineering, University of Wisconsin-Madison, Madison, WI

  • Venue:
  • WSC '87 Proceedings of the 19th conference on Winter simulation
  • Year:
  • 1987

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Abstract

One way to construct a confidence interval for the mean constant of a stochastic process, is via consistent estimation of another parameter of the process, namely, the time-average variance constant. In this paper, we discuss strong consistency of the variance estimator for several methods of steady-state output analysis. These are; Batch Means (BM), Overlapping Batch Means (OBM), Spectral methods, and finally, Standardized Time Series (the area estimator of STS). A characterization of the spectral variance estimator is also presented; it is a generalization of OBM. Another estimator, which might be called Overlapping Area estimator, connects the area estimator with spectral methods.