B. J. Hurley
Abstract
This paper is the result of an effort to support and supplement the development of a specialized information retrieval computer, EUREKA, presently being built at the University of Illinois, Urbana. We begin by defining a basic machine architecture from which many text retrieval systems can be configured. This architecture includes two features that are designed to increase the efficiency and performance of these systems. First, a special processor is used to merge and coordinate postings lists obtained from an inverted file. Second, there are facilities for parallel data transfer which will allow the postings lists to be moved rapidly through the memory hierarchy. Our next step is to identify the design variables that exist within this basic architecture. These are the parameters that can be varied to configure specific retrieval machines. Finally, simulation results are, studied to evaluate the effect the design variables have on each other as well as on the architecture as a whole. From these results we will develop an understanding of how to construct a retrieval machine using information on the various speeds and capacities of its components.
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