James R. Kenevan

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In multicomputer architectures, in which processors communicate through message-passing, the overhead encountered because of the need to relay messages can significantly affect performance. Based upon some simplifying assumptions including the rate at which a processor generates messages being proportional to its current potential utilization, processor(More)
In recent years the belief network has been used increasingly to model systems in AI that must perform uncertain inference. The de­ velopment of efficient algorithms for proba­ bilistic inference in belief networks has been a focus of much research in AI. Efficient al­ gorithms for certain classes of belief networks have been developed, but the problem of(More)
The CPU cycles that are stolen to relay messages can significantly affect the performance of a multicomputer system. This degradation in performance in turn affects the overall cost-effectiveness of such a system. This paper compares the cost-effectiveness of four multicomputer architectures that have received a great deal of recent attention: the(More)
Abstract: In this paper we design a model of a complex process known as the WEB information retrieval. An open queuing network represents the Internet. The TCP channel delivery and multi-facility requirements to serve an information retrieval request are incorporated into the model. We further use this model to determine analytical solutions for mean values(More)