Colin G. Harrison

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LIMITED DISTRIBUTION NOTICE This report has been submitted for publication outside of IBM and will probably be copyrighted if accepted for publication. It has been issued as a Research Report for early dissemination of its contents. In view of the transfer of copyright to the outside publisher, its distribution outside of IBM prior to publication should be(More)
The geographic placement of application function is determined by our attempts to optimize the costs of factors such as computation, storage, communication bandwidth, management and development. Forty years ago this meant that application integration was achieved at the register level and since that time a certain fraction of the increases in performance of(More)
NOTICE This report will be distributed outside of IBM up to one year after the IBM publication date. Abstract: Mobile agents are programs, typically written in a script language, which may be dispatched from a client computer and transported to a remote server computer for execution. Several authors have suggested that mobile agents offer an important new(More)
A decoder for soft-decision decoding is much more complex than the corresponding hard-decision decoder, however it has a significant performance advantage over a hard-decision decoder. Minimum Weight Decoding (MWD) is a modified error trapping technique for cyclic block codes. In this paper a hardware VLSI chip design implementation is described which(More)
Security issues in a distributed system are always crucial and existing distributed computing security technologies do not adequately address for its scalability, performance and heterogeneity. In this paper, an agent-based authentication model is designed and uses a mobile agent which is an object that migrates through many nodes of a heterogeneous network(More)
– A prototype Internet Research Support System is presented based on earlier work on the modeling of online reading behavior and evaluating the reading process and its outcomes. Users complete a reading task by browsing the Web and writing a short essay. The online browsing data is captured in real-time, which, along with the essay, reflects the(More)