Evaluating the reliability of loosely coupled Software as a Service through the paradigm of a cluster-based and non-cluster-based web server is considered to be an important attribute for the service delivery and execution. We proposed a novel method for measuring the reliability of Software as a Service execution through load testing. The fault count of the model against the stresses of users ...

Fermilab has developed and delivered to DESY Hamburg two RF guns for the operation of the phase I of the TESLA Test Facility (TTF) accelerator. The first RF gun (designated G3 in the following) has been operated on TTF from October 1998 to March 2002. G3 presented a reliable behaviour with short RF pulses (< 300 μs ). For longer RF pulses, G3 suffered from breakdowns occurring in the coupling s...

In the standard optimal stopping problems, actions are artificially restricted to the moments of observations of costs or benefits. In the standard experimentation and learning models based on two-armed Poisson bandits, it is possible to take an action between two sequential observations. The latter models do not recognize the fact that timing of decisions depends not only on the rate of arriva...

acoustic experimental data of irib (islamic republic of iran broadcasting) server room was taken to measure the acoustic noise characteristics of frequency and sound pressure level (spl). the purposes of this paper are measuring the noise pollution and its evaluation through the regulations. the measurements were taken in two stages. the first one was taken at 10 points by sound investigator 22...

We propose a model for path-planning based on single performance metric that accurately accounts the potential (spatially inhomogeneous) cost of breakdowns and repairs. These random happen at known (also spatially rate can be one two types: total, which halt all movement until an in-place repair is completed, or partial, after continues in damaged state. use framework piecewise-deterministic Ma...