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Peer reviewedAnd Others; Zipperer, William C. – Journal of Chemical Documentation, 1974
The relative retrieval performances of the CA Integrated Subject File (CAISF), CA Condensates, and a Merged File created from these two data bases were measured. Retrieval performance is reported in terms of recall, precision values, and costs. (Author/JB)
Descriptors: Chemistry, Comparative Analysis, Cost Effectiveness, Data Processing
Peer reviewedKim, Won; Wilbur, W. John – Journal of the American Society for Information Science and Technology, 2001
Presents three different statistical techniques for identifying content-bearing phrases within a natural language database. Describes results on the effectiveness of the scoring methods when applied to MEDLINE phrases, and how the three methods can be combined to improve performance. Processing results for an example document are provided.…
Descriptors: Data Processing, Databases, Document Delivery, Indexing
Gaillardin, R.; And Others – 1980
This report on the multidisciplinary PASCAL database describes the files and the indexing rules for chemistry, biology, and medicine. PASCAL deals with all aspects of chemistry within two subfiles whose combined yearly growth is about 100,000 references. The Biopascal file, organized in the two subfiles of Plant Science and Biology and Medicine,…
Descriptors: Biology, Chemistry, Computers, Data Processing
Vance, David – 1975
This manual describes information processing procedures for Museum Computer Network (MCN) systems. The first section contains general rules for preparation of input: conventions for all data; conventions for controlling the appearance of output; conventions for automatic sorting of data; conventions for user specified sorting of data; and…
Descriptors: Classification, Computer Programs, Data Collection, Data Processing
Download full textSchuegraf, Ernst J. – 1975
A description of a retrospective document retrieval system is given in which equifrequent fragments are used as language elements for compression coding and retrieval. The critical parameters governing the system are identified, and restrictions imposed by the parameters on the selection of fragments are outlined. Changes necessary in the…
Descriptors: Computational Linguistics, Computer Programs, Computers, Data Processing
Evans, Max J.; And Others – 1982
This document comprises four reports related to the Midwest State Archives Guide Project. The first report, "Producing In-House Finding Aids and Administrative Reports: An Expanded Data Base Design," details an expanded SPINDEX database design that could be used to produce a variety of administrative reports. Specific examples are given…
Descriptors: Archives, Computers, Data Processing, Databases
Rigby, Malcolm – 1974
The development of machine or computer applications for the arrangement, storage, retrieval, and display of literature references or classification schedules, vocabularies, and indexes used with the Universal Decimal Classification (UDC) System as an access point is reviewed. Activities of the Subcommittee on Mechanization of the UDC Central…
Descriptors: Bibliographies, Cataloging, Classification, Computer Programs
