Discusses the probabilistic nature of information retrieval, and describes a front end system designed to permit searchers to attach probabilistically interpreted weights to query terms, which could be adapted for conventional information retrieval systems without requiring radical changes in current indexing procedures. (37 references) (CLB)

Discusses the issues influencing the design, implementation, and promotion of the Towers Perrin in-house text retrieval system. The discussion of factors influencing system design includes the organizational culture, the existing computer and communications network, and the availability of text retrieval software. Suggestions for in-house systems…

Describes the development and implementation of a full-text image retrieval system at the Boeing Commercial Airplane Group. The conversion of card formats to a microcomputer-based system using HyperCard is described; the online system architecture is explained; and future plans are discussed, including conversion to digital images. (LRW)

Provides an overview of methods for improving the effectiveness of Boolean retrieval systems, including document clustering, relevance feedback, weighted term searching, ranked output, and fuzzy set theory. The discussion of experimental studies with the SMART and SIRE systems focuses on the implementation and results of these methods. (69…

In the first of three articles, the producer of Energyline, Energynet, and Tele/Scope recalls the development of the databases and database business strategies. The second describes the development of biomedical online databases, and the third discusses future developments, including full text databases, database producers as online host, and…

The impact of emerging information technologies on the information industry is discussed in four papers. Topics covered include electronic delivery of full text primary literature; a brief evaluation of new information processing technologies and software; networking technologies; and the use of gateway technologies to create new products and…

Discusses expected future developments in full text databases (FTDs) in three main areas: host-based menu-driven systems; menu and front end interfaces on gateway and mailbox services; and microcomputer or front end computer-based systems which already have good retrieval interactions and input output processing features. (24 references)…

Five papers discuss factors affecting human interactions with online information systems. Topics covered include the use of discourse analysis for interaction functions specification; the impact of optical data disks; the need for research into the search process; user access to data dictionaries; and the development of full text systems. (CLB)