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Bak, Peter; Meyer, Joachim – Behaviour & Information Technology, 2011
Information systems increasingly provide options for visually inspecting data during the process of information discovery and exploration. Little research has dealt so far with user interactions with these systems, and specifically with the effects of characteristics of the displayed data and the user on performance with such systems. The study…
Descriptors: Foreign Countries, Graphs, Criteria, Information Retrieval
Coulson, John – 1970
Differences in judged relevance of Educational Resources Information Center (ERIC) abstracts identified by two different information systems were investigated. A national semi-private educational service agency which utilizes mechanical searching of the research literature was one information system, while the other was a regional,…
Descriptors: Automation, Comparative Analysis, Information Retrieval, Information Systems

Cooper, Michael D. – Journal of the American Society for Information Science, 1983
Examines usage patterns of ELHILL retrieval program of National Library of Medicine's MEDLARS system. Based on sample of 6,759 searches, the study analyzes frequency of various commands, classifies messages issued by system, and investigates searcher error rates. Suggestions for redesigning program and query language are noted. Seven references…
Descriptors: Computer Programs, Databases, Information Retrieval, Information Systems

Hill, Janette R. – Educational Technology Research and Development, 1999
Describes a theoretically and empirically based framework for how users formulate and employ information-seeking strategies in open-ended information systems (OEISs). Discusses challenges related to OEISs. Describes OEIS theoretical and users' perspectives. Presents an example based on a recent study to illustrate use of the OEIS…
Descriptors: Information Networks, Information Seeking, Information Systems, Information Utilization

Hawkins, Donald T. – Online Review, 1985
This 910-item annual update (1984 through early 1985) covers: online systems, databases, services; man-machine studies, database creation, user interface, system design and evaluation; profile development, searching techniques, indexing; usage studies, economics, promotion, online searching services management; user training, microcomputer…
Descriptors: Databases, Indexing, Information Retrieval, Information Services
Slawsky, Dorothy A., Ed.; Brandhorst, Ted, Ed. – 1978
The result of a comprehensive search for documents about ERIC, this bibliography lists 269 entries which approach ERIC in several different ways, e.g., documents of historical interest in the development of the system; "how to" items designed to initiate the user into the system; user surveys; evaluations of ERIC performance; reports…
Descriptors: Annotated Bibliographies, Background, Evaluation, Federal Programs
Smith, William A., Jr.; And Others – 1968
An existing experimental document and reference retrieval system operating in batch processing, tape oriented mode was converted to an on-line mode with user interaction. Objectives were faster response time, integration of functions, and system accessibility at user location. Effects on file organization, addressing techniques, file maintenance,…
Descriptors: Computer Storage Devices, Information Retrieval, Information Science, Information Storage
Kiewitt, Eva L. – 1976
PROBE, a batch-mode information retrieval program used to search the Educational Resources Information Center (ERIC) data base, was developed by Indiana University. To evaluate the effectiveness of the program, questionnaires were given to the users of 200 consecutive searches during February 1973. Relevance ratios were computed by comparing the…
Descriptors: Computer Programs, Cost Effectiveness, Costs, Databases
Saracevic, Tefko, Ed.; Rothenberg, Leslie, Ed. – 1967
The report deals with experiments in testing and evaluation of an information retrieval system within the Comparative Systems Laboratory (CSL). Section I outlines the approach and the general methodology developed in CSL, the operational design of the experiments, the construction and use of the manuals, and the general significance of the…
Descriptors: Abstracting, Codification, Comparative Testing, Computer Programs
Cornell Univ., Ithaca, NY. Dept. of Computer Science. – 1970
On-line retrieval system design is discussed in the two papers which make up Part Five of this report on Salton's Magical Automatic Retriever of Texts (SMART) project report. The first paper: "A Prototype On-Line Document Retrieval System" by D. Williamson and R. Williamson outlines a design for a SMART on-line document retrieval system…
Descriptors: Automation, Computer Programs, Design, Information Retrieval
Bourne, Charles P.; And Others – 1974
In order to identify and explain the reasons for differences in average on-line search rates among terminal installations, the operations and performance of several facilities using the Lockheed DIALOG system for on-line searching of the ERIC data base were studied. Detailed examinations were made of such aspects as the DIALOG system response time…
Descriptors: Databases, Electronic Equipment, Information Retrieval, Information Systems

Wiberley, Stephen E., Jr.; Daugherty, Robert Allen – College and Research Libraries, 1988
This review of the literature on the effect of information overload on users' information-seeking behavior focuses on librarians' opinions about the number of references that constitute too many, and users' preferences for maximum numbers of references from online searches, online public access catalog postings, and manual indexes. (35 references)…
Descriptors: Comparative Analysis, Indexes, Information Seeking, Information Systems
Vollaro, Alice J.; Hawkins, Donald T. – Online, 1986
Reports results of study of a group of end users (patent attorneys) doing their own online searching at AT&T Bell Laboratories. Highlights include DIALOG databases used by the attorneys, locations and searching modes, characteristics of patent attorney searchers, and problem areas. Questionnaire is appended. (5 references) (EJS)
Descriptors: Case Studies, Databases, Information Services, Information Systems
Brandhorst, Ted, Ed. – 1985
The result of a comprehensive search for documents about the Educational Resources Information Center (ERIC) published between 1979 and 1984, this bibliography lists 131 entries which approach ERIC in several different ways: documents of historical interest in the development of ERIC; "how to" items whose object is to initiate the user…
Descriptors: Annotated Bibliographies, Background, Clearinghouses, Educational Research
Zull, Carolyn Gifford, Ed.; And Others – 1968
This third volume of the Comparative Systems Laboratory (CSL) Final Technical Report is a collection of relatively independent studies performed on CSL materials. Covered in this document are studies on: (1) properties of files, including a study of the growth rate of a dictionary of index terms as influenced by number of documents in the file and…
Descriptors: Classification, Comparative Analysis, Content Analysis, Data Analysis