作者:PETERSON, MD; BERTSIMAS, DJ; ODONI, AR
作者单位:Massachusetts Institute of Technology (MIT)
摘要:We develop a new model for studying the phenomenon of congestion in a transient environment, focusing on the problem of aircraft landings at a busy ''hub'' airport. Our model is based on a Markov/semi-Markov treatment of changes in the weather, the principal source of uncertainty governing service times, together with a treatment of the arrival stream as time-varying but deterministic. The model is employed to compute moments of queue length and waiting time via a recursive algorithm. To test ...
作者:STRAUB, D; LIMAYEM, M; KARAHANNAEVARISTO, E
作者单位:University of Cyprus; Laval University
摘要:There is widespread agreement among researchers that system usage, defined as the utilization of information technology (IT) by individuals, groups, or organizations, is the primary variable through which IT affects white collar performance. Despite the number of studies targeted at explaining system usage, there are crucial differences in the way the variable has been conceptualized and operationalized. This wide variation of system usage measures hinders the efforts of MIS researchers to com...