This note deals with two related approximations that were recently proposed for the loss probability in finite-buffer queues. The purpose of the paper is two-fold. First, to provide better insight and more theoretical support for both approximations. Second, to show by an experimental study how well both approximations perform. An interesting empirical finding is that in many cases of practical...

Abstract At the facility which has limited capacity, users can not always be provided service, but be passed around. In the situation that the total number of servers is constant, more facilities reduce servers of individual facility. Therefore though the distance from users to facility decreases, the loss probability increases. We consider the number of facilities and their location which mini...

Involuntary weight loss is a symptom of protein energy malnutrition often reported among elderly people, especially those with dementia. In this study, we examined whether dementia-related eating difficulties increase the probability of weight loss in the elderly. This cross-sectional observation study was conducted in 60 community-dwelling elderly people with dementia (84.1±6.7 yr of age). Ove...

This paper considers an M/G/1/K queueing system with push-out scheme which is one of the loss priority controls at a multiplexer in communication networks. The loss probability for the model with push-out scheme has been analyzed, but the waiting times are not available for the model. Using a set of recursive equations, this paper derives the LaplaceStieltjes transforms (LSTs) of the waiting ti...

In this paper we investigate various performance measures of interest, when comparing fast packetswitched networks that operate with either fixed or variable packet sizes. These performance measures include queue length distribution, packet loss probability, as well as user frame loss probability. The focus of the paper is on identifying key parameters that influence the outcome of this compari...

Estimating the cell loss probability in an ATM multiplexer is a key issue in network management and traac control tasks such as call admission control and bandwidth allocation. In this paper, we derive a new approximation to estimate the total and individual cell loss probabilities in an ATM multiplexer fed by a superposition of heterogeneous on-oo sources. Based on this approximation, a simple...

C. Pereira and J. Stern have recently introduced a measure of evidence of a precise hypothesis consisting of the posterior probability of the set of points having smaller density than the supremum over the hypothesis. The related procedure is seen to be a Bayes test for specific loss functions. The nature of such loss functions and their relation to stylised inference problems are investigated....