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3 results on '"Rubinoff, Elayne R."'

1. Experimental Evaluation of Information Retrieval Through a Teletypewriter.

Author

Rubinoff, Morris, Bergman, Samuel, Franks, Winifred, and Rubinoff, Elayne R.

Subjects
INFORMATION retrieval, HUMAN-computer interaction, INFORMATION storage & retrieval systems, INFORMATION services, INFORMATION resources, TELETYPEWRITERS
Abstract

Experiments designed to evaluate the capabilities of mechanized information retrieval systems, with emphasis on interactive (man-machine) language and on some of the mechanical and psychological limitations in their design, were conducted at the Moore School Information Systems Laboratory The bask assumption of the research is that an information retrieval system that provides for man-machine dialogue cat a remote inquiry terminal should provide a searcher with many of the tools Which would be available to him were he actually performing his search at a library or repository of documents. Factors involved in evaluation of such a system include ease of use, learning time, and effectiveness of actual retrieval. Three experiments and the conclusions resulting from them are detailed. [ABSTRACT FROM AUTHOR]

Published
1968
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3. EXPERIMENTAL EVALUATION OF INFORMATION RETRIEVAL THROUGH A TELETYPEWRITER

Author

MOORE SCHOOL OF ELECTRICAL ENGINEERING PHILADELPHIA PA, Rubinoff, Morris, Bergman, Samuel, Franks, Winifred, Rubinoff, Elayne R., MOORE SCHOOL OF ELECTRICAL ENGINEERING PHILADELPHIA PA, Rubinoff, Morris, Bergman, Samuel, Franks, Winifred, and Rubinoff, Elayne R.

Abstract

A minimum of 30 minutes is required to learn even the rudiments of the command language (Symbolic Language). Although written instructions are helpful, practice is essential. The programmed instruction routines, which took approximately 20 minutes, were mostly of the 'yes-no' variety. Expanded routines, which would require other replies and would give student-users actual practice in formation of retrieval requests would have been better, but would have taken considerably more time (and would have tried the patience of more astute students). Flexibility was sacrificed for the sake of simplicity in the command language, and this was pointed out as a definite deficiency by many of the subjects. Increased flexibility would have, of course, added to the required learning time. The slow typing speed of the teletypewriter (slower than the average reading rate) and the high noise level were pointed out as distracting factors by many of the subjects.

Published
1967

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