An adaptive information retrieval system on the connection machine." Abstract This paper reports the state of development of PThomas, a network based document retrieval system implemented on a massively parallel fine-grained computer, the Connection Machine. The program is written in C*, an enhancement of the C programming language which exploits the… (More)
This paper is an exploratory study of one approach to incorporating situational information into information retrieval systems, drawing on principles and methods of discourse linguistics. A tenet of discourse linguistics is that texts of a specific type possess a structure above the syntactic level, which follows conventions known to the people using such… (More)
1. Abstract This work explores the use of plausible inferences as a means of retrieving relevant documents. Collins and Michal-ski's theory of plausible reasoning has been modified to accommodate information retrieval. Methods are proposed to represent document contents by logical terms and statements, and queries by incomplete logical statements.… (More)
All opinions and observations are those of the authors, and not necessarily those of the British Library.ABSTRACT Chapter 1.
A conceptual framework for teaching online catalog use. The user's mental model of an information retrieval system: an experiment on a prototype online catalog. Borgman, C.L. (1986b) Why are online catalogs hard to use? Lessons learned from information retrieval studies. Retrieval by reformulation in two library catalogs: toward a cognitive model of… (More)
A laboratory is a sheltered place where one constrains the enthusiastic abandon of the real world in order to attempt to lay the blame for one apparently capricious phenomenon upon another. The extraordinary difficulties experienced in all areas of science when designing experiments testify to the complexity of the interactions between natural phenomena.… (More)