6 research outputs found
Future applications of associative processor systems to operational KSC systems for optimizing cost and enhancing performance characteristics
The application of associative memory processor equipment to conventional host processors type systems is discussed. Efforts were made to demonstrate how such application relieves the task burden of conventional systems, and enhance system speed and efficiency. Data cover comparative theoretical performance analysis, demonstration of expanded growth capabilities, and demonstrations of actual hardware in simulated environment
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An investigation to study the feasibility of on-line bibliographic information retrieval system using an APP
This thesis was submitted for the degree of Doctor of Philosophy and was awarded by Brunel University.This thesis reports an investigation on the feasibility study of a
searching mechanism using an APP suitable for an on-line bibliographic
retrieval, operation, especially for retrospective searches.
From the study of the searching methods used in the conventional
systems it is seen that elaborate file- and data- structures are
introduced to improve the response time of the system. These
consequently lead to software and hardware redundancies. To mask
these complexities of the system an expensive computer with higher
capabilities and more powerful instruction set is commonly used.
Thus the service of the systen becomes cost-ineffective.
On the other hand the primitive operations of a searching mechanism,
such as, association, domain selection, intersection and unions, are
the intrinsic features of an associative parallel processor. Therefore
it is important to establish the feasibility of an APP as a cost-effective
searching mechanise.
In this thesis a searching mechanism using an 'ON-THE-FLY' searching
technique has been proposed. The parallel search unit uses a Byte-oriented
VRL-APP for efficient character string processing.
At the time of undertaking this work the specification for neither the
retrieval systems nor the BO-VRL APP's were well established; hence a
two-phase investigation was originated. In the Phase I of the work a
bottom up approach was adopted to derive a formal and precise
specification for the BO-VRL-APP. During the Phase II of the work
a top-down approach was opted for the implementation of the searching
mechanism.
An experimental research vehicle has been developed to establish
the feasibility of an APP as a cost-effective searching mechanism.
Although rigorous proof of the feasibility has not been obtained,
the thesis establishes that the APP is well suited for on-line
bibligraphic information retrieval operations where substring searches
including boolean selection and threshold weights are efficiently
supported