Abstract

Virtual execution environment control (VEEC) has been proposed to improve the response time of remote knowledge-base access using the satellite communications. In VEEC, the knowledge base is divided into independently executable knowledge-base subsets called “sources,” and their transmission between server and client computers are controlled by the “source search graph,” which represents the execution orders between sources by a directed graph. In this article, source prefetch strategies for improving VEEC performance are proposed, and their effectiveness is assessed by experiments using the JCSAT satellite. A “WWW virtual access system” is proposed as a new VEEC version for the WWW computational environment. New page prefetch strategies are proposed and experimentally assessed using the JCSAT satellite. © 2000 Scripta Technica, Electron Comm Jpn Pt 1, 83(8): 22–31, 2000

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