PRECIS; its Theory and Application — an Extended State-of-the-Art Review from the Beginning up to 1982

Statistical analysis of the frequency of application of a pair of role operators within the input strings, where the terms are set according to the context-dependent order, would not only help us to determine the concept cooccurrences within the subject literature, but also to study the amount of interdependency among the role op erators. This article analyzes the associations among dif. ferent role operators quantitatively by taking the input strings from 200 abstracts each related to the subject fields of taxation, genetic psychology, and Shakespearian drama and subjecting them to x*--test. The concepts specifying key system occurred significantly with those of action in both taxation and genetic psy chology; whereas in the former the action concepts remained independent of agent concepts, they showed significant associations in the latter. The subject literature of genetic psychology contained associations of parts/ properties with concepts specifying key systems, actions, and agents more than that of taxation. Only action and agent concepts of taxation were associated with its parts/properties. The concepts specifying dates as dif. ference showed a good alliance with action concepts in Shakespearian drama. The paper also discusses signifi. cant associations by other differencing operators and connectives. Though no generalizations have been made in this paper, it hopes to throw some light on the nature of concepts within the subject literature as well as on the relationships of different role operators for their effective and efficient application in the future.

Interdependence of PRECIS role operators: A quantitiative analysis of their associations

Mahapatra

Biswas

1986

Subject access in online catalogs: A design model

Bates

1986

222

A model based on strikingly different philosophical assumptions from those currently popular is proposed for the design of online subject catalog access. Three design principles are presented and discussed: uncertainty (subject indexing is indeterminate and probabilistic beyond a certain point), variety (by Ashby's law of requisite variety, variety of searcher query must equal variety of document indexing), and complexity (the search process, particularly during the entry and orientation phases, is subtler and more complex, on several grounds, than current models assume). Design features presented are an access phase, including entry and orientation, a hunting phase, and a selection phase. An end‐user thesaurus and a front‐end system mind are presented as examples of online catalog system components to improve searcher success during entry and orientation. The proposed model is “wrapped around” existing Library of Congress subject‐heading indexing in such a way as to enhance access greatly without requiring reindexing. It is argued that both for cost reasons and in principle this is a superior approach to other design philosophies. © 1986 John Wiley & Sons, Inc.

Interdependence of PRECIS role operators: A quantitiative analysis of their associations

Mahapatra¹,

Biswas²

1986

Statistical analysis of the frequency of application of a pair of role operators within the input strings, where the terms are set according to the context-dependent order, would not only help us to determine the concept cooccurrences within the subject literature, but also to study the amount of interdependency among the role op erators. This article analyzes the associations among dif. ferent role operators quantitatively by taking the input strings from 200 abstracts each related to the subject fields of taxation, genetic psychology, and Shakespearian drama and subjecting them to x*--test. The concepts specifying key system occurred significantly with those of action in both taxation and genetic psy chology; whereas in the former the action concepts remained independent of agent concepts, they showed significant associations in the latter. The subject literature of genetic psychology contained associations of parts/ properties with concepts specifying key systems, actions, and agents more than that of taxation. Only action and agent concepts of taxation were associated with its parts/properties.The concepts specifying dates as dif. ference showed a good alliance with action concepts in Shakespearian drama. The paper also discusses signifi. cant associations by other differencing operators and connectives. Though no generalizations have been made in this paper, it hopes to throw some light on the nature of concepts within the subject literature as well as on the relationships of different role operators for their effective and efficient application in the future.