An experimental computer-stored, augmented catalog of professional literature

Marcus, Richard S.; Kugel, Peter; Kusik, Robert L.

doi:10.1145/1476793.1476863

Cited by 4 publications

(5 citation statements)

References 5 publications

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“…Suppose the hash function distributes the transformed keys uniformly over all hash addresses. The probability that a new, or misspelled, key maps into an existing entry is given by (14) Pc = NjV The probability that a search leads to a mismatch is therefore ( 15)…”

Section: Search Phase and Problem Of Mismatchmentioning

confidence: 99%

File Structure for an On-Line Catalog of One Million Titles

Dimsdale¹

1973

ITAL

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A description is given of the file organization and design of an on-line catalog suitable for automation of a library of one million books. A method of virtual hash addressing allows rapid search of the indexes to the catalog file. Storage of textual material in a compressed form allows considerable reduction in storage costs.

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Section: Search Phase and Problem Of Mismatchmentioning

confidence: 99%

File Structure for an On-Line Catalog of One Million Titles

Dimsdale¹

1973

ITAL

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“…However, if the index space has not been precisely defined to the user in structure and vocabulary, or unless the user brings this precise, complete description of structure and vocabulary to the search with him (which Meadow and Taylor indicate he normally does not) then the attempt to formulate a query describing his problem under the constraints of his system will tend to result in the frustrations Taylor talks about. Even though appropriate reading references are made available to the user, both Marcus (1971) and Kent (1967) have found that the system designer cannot assume the user has read them. Moreover, Kent argues that, the user's "questions directed to the system will not come from the text of the documents on file [used in indexing and classifying] but rather from the user's own paradigms.…”

Section: Problems Of Query Formationmentioning

confidence: 99%

“…Samuelson (1968) argues that if the searcher is to arrive at an appropriate information destination within a reasonable period of time, he must be given a goal directed performance structure and not just "left alone in the woods on a random walk.'' Marcus (1969) whose project INTREX at MIT is one of the better experimental information retrieval systems in the country. claims that what is still needed is, among other things, a greatly simplified way to learn the system's structure and vocabulary.…”

Section: Problems Of Query Formationmentioning

confidence: 99%

“…Whereas precision and recall were suggested by some as appropriate measures of system efficiency in batch systems (Salton, 1967), they seem to be inappropriate for interactive systems as a measure of single requests since "users tend to use sequences of such requests to formulate their problems," says Marcus (1971). He goes on to say that what is more appropriate would be "some measure of the rapidity with which they can 'home in' on their goal.''…”

Section: Comments On Measures Of System Performancementioning

confidence: 99%

“…Moreover, the speed of CRT display increases the breadth of the search (and apparent recall) since, as Marcus (1971) found, "the user who scans 50 references on a CRT may limit himself to 20 or less on a typewriter and 5 or less in a traditional library. ''…”

Section: Economic Feasibility Of Using a Cathode Ray Tube Display In mentioning

confidence: 99%

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Interface design for an interactive information retrieval system: A literature survey and a research system description

Thompson¹

1971

J. Am. Soc. Inf. Sci.

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This article focuses on the human interaction characteristics of an information retrieval system, suggests some design considerations to improve man‐machine cooperation, and describes a research system at Stanford that is exploring some of these techniques. Librarians can only be of limited assistance in helping the naive user formulate an unstructured feeling in his mind into an appropriate search query that maps into the retrieval system. Consequently, the process of query formulation by the user, interactively with the information available in the system, remains one of the principal problems in information retrieval today. In an attempt to solve this problem by improving the interface communication between man and the computer, we have pursued the objective of displaying hierarchically structured index trees on a CRT in a decision tree format permitting the user merely to point (with a light pen) at alternatives which seem most appropriate to him. Using his passive rather than his active vocabulary expands his interaction vocabulary by at least an order of magnitude. Moreover, a hierarchically displayed index is a modified thesaurus, and may be augmented by adding lateral links to provide semantic assistance to the user. A hierarchical structure was chosen because it seems to replicate the structure of cognitive thought processes most closely, thus allowing the simplest, most direct transfer of the man's problem into the structure and vocabulary of the system.

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Computer-based structural analysis in the development and administration of educational materials

Smith

1976

International Journal of Man-Machine Studies

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An experimental computer-stored, augmented catalog of professional literature

Cited by 4 publications

References 5 publications

File Structure for an On-Line Catalog of One Million Titles

File Structure for an On-Line Catalog of One Million Titles

Interface design for an interactive information retrieval system: A literature survey and a research system description

Computer-based structural analysis in the development and administration of educational materials

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