Accession Number : ADA183877

Title :   Bayesian Failure Probability Model Sensitivity Study.

Descriptive Note : Final rept.

Corporate Author : BOOZ-ALLEN AND HAMILTON INC BETHESDA MD

PDF Url : ADA183877

Report Date : 30 May 1986

Pagination or Media Count : 70

Abstract : The Office of the Manager, National Communications System (OMNCS) has developed a system-level approach for estimating the effects of High-Altitude Electromagnetic Pulse (HEMP) on the connectivity of telecommunications networks. This approach incorporates a Bayesian statistical model which estimates the HEMP-induced failure probabilities of telecommunications switches and transmission facilities. the purpose of this analysis is to address the sensitivity of the Bayesian model. This is done by systematically varying two model input parameters--the number of observations, and the equipment failure rates. Throughout the study, a non-informative prior distribution is used. The sensitivity of the Bayesian model to the non-informative prior distribution is investigated from a theoretical mathematical perspective. Keywords: probability density functions; cumulative distribution functions; statistical models.

Descriptors :   *BAYES THEOREM, *COMMUNICATION AND RADIO SYSTEMS, *RADIO INTERFERENCE, *COMMUNICATIONS NETWORKS, DISTRIBUTION FUNCTIONS, ELECTROMAGNETIC PULSES, FACILITIES, FAILURE, HIGH ALTITUDE, MATHEMATICAL MODELS, PROBABILITY DENSITY FUNCTIONS, RATES, STATISTICAL ANALYSIS, SWITCHES, TELECOMMUNICATIONS, COMMUNICATION SWITCHING CENTERS

Subject Categories : Radio Communications
      Electromagnetic Pulses
      Statistics and Probability

Distribution Statement : APPROVED FOR PUBLIC RELEASE