Describes several problems encountered when using the Boolean model of information retrieval, and for each problem offers a nontraditional design principle that overcomes the difficulty. The problems discussed are the unfriendliness of Boolean formulas, null output and output overload, undifferentiated facets, interpreting weights, and term…

Discusses the distinctive differences between the English and Chinese languages from the system designer's point of view and explores the potential problems for Chinese information retrieval systems, focusing on character entry and retrieval. The advantages and disadvantages of current approaches are discussed, and a regular expression search…

This paper reports on a transaction log analysis of 51,473 queries from 18,113 users of Excite, a major World Wide Web search engine. Approximately 2,500 of these queries were from the use of relevance feedback. Given the high level of research activity and historical success of relevance feedback in assisting users in locating relevant…

Discusses the need for knowledge gateway systems to provide access to scattered information and the use of technologies in gateway building, including artificial intelligence and expert systems, networking, online retrieval systems, optical storage, and natural language processing. The status of four existing gateways is described. (20 references)…

Documented in this project report are efforts to create and evaluate an Energy-Environment Information Transfer System (EEITS) for Region VIII of the Environmental Protection Agency (EPA). This system is designed to support government policy-making and implementation decisions regarding energy and the environment. In addition to assisting federal,…

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)

This study (1) examines the university's serials system and identifies its problems; (2) analyzes the current manual operations in the serials department, with emphasis on the serials check-in system; and (3) determines whether or not computerization of some or all of the serials subsystems would improve the department's internal effectiveness and…

The integration of new technology in 500 Army libraries was studied to assess the feasibility of introducing automation techniques to army library technical processing activities, to examine and recommend appropriate systems and configurations for library automation, and to determine the costs of implementing the recommendations. The study…

Analyzes the change that Internet-based OPACs (Online Public Access Catalogs) have represented to the structure, administration, and maintenance of the catalogs, retrieval systems, and user interfaces. Examines the structure of databases and traditional principles that have governed systems development. Discusses repercussions of the application…

Clarifying the meaning of principal effectiveness as a point of departure in the development of an appraisal system in Connecticut is discussed, focusing on the reasons for an appraisal system, how effectiveness should be defined, where to find relevant information, and how best to organize such information. (SLD)

Describes the design and development of a case-based reasoning (CBR) knowledge repository, including its case library and the search engine to support the technology integration community. The process and results of ormative evaluation following the concept of participatory design are reported to set the context for further research and…