We propose to use a mathematical method based on stochastic comparisons of Markov chains in order to derive performance indice bounds‎. ‎The main goal of this paper is to investigate various monotonicity properties of a single server retrial queue with first-come-first-served (FCFS) orbit and general retrial times using the stochastic ordering techniques‎.

anthropometric measurements is a simple and reliable tool for assessment of nutritional status of children. in this study height and weight of 23,170 middle class school children of 6-14 years in the city of shiraz and four rural areas were measured. results showed no difference among the rural and urban children. they were close to the third percentile of boston standard for height and weight ...

Résumé. La mesure de la qualité des connaissances est une étape clef d’un processus de découverte de règles d’association. Dans cet article, nous présentons IPEE, un indice de qualité de règle qui a la particularité unique d’associer les deux caractéristiques suivantes : d’une part, il est fondé sur un modèle probabiliste, et d’autre part, il mesure un écart à l’équilibre (incertitude maximum d...