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An Investigation of the Coauthor Graph.
Peer reviewed Peer reviewed
Logan, Elisabeth L.; Shaw, W. M., Jr. – Journal of the American Society for Information Science, 1987
The role of the coauthor relationship in the structure of informal communications networks within disciplines is explored, and the validity of coauthor graphs used to map these relationships is tested for both small and large databases. (CLB)
Descriptors: Authors, Bibliometrics, Cluster Grouping, Cooperation
A Technical Evaluation of the Linked Systems Project Protocols in the Name Authority Distribution Application.
Peer reviewed Peer reviewed
McGill, Michael J.; And Others – Information Technology and Libraries, 1987
Reviews the Linked Systems project protocols in the Name Authority Distribution Application and describes the requirements they were designed to meet. A technical evaluation of the protocols in actual operation at OCLC is presented, and suggestions for improved performance are made. (Author/CLB)
Descriptors: Bibliographic Utilities, Case Studies, Databases, Evaluation Criteria
Testing of a Natural Language Retrieval System for a Full Text Knowledge Base.
Peer reviewed Peer reviewed
Bernstein, Lionel M.; Williamson, Robert E. – Journal of the American Society for Information Science, 1984
The Hepatitis Knowledge Base (text of prototype information system) was used for modifying and testing "A Navigator of Natural Language Organized (Textual) Data" (ANNOD), a retrieval system which combines probabilistic, linguistic, and empirical means to rank individual paragraphs of full text for similarity to natural language queries…
Descriptors: Algorithms, Databases, Graphs, Information Retrieval
The Profile-Query Relationship.
Peer reviewed Peer reviewed
Shepherd, Michael A.; Phillips, W. J. – Journal of the American Society for Information Science, 1986
Defines relationship between user profile and user query in terms of relationship between clusters of documents retrieved by each, and explores the expression of cluster similarity and cluster overlap as linear functions of similarity existing between original pairs of profiles and queries, given the desired retrieval threshold. (23 references)…
Descriptors: Cluster Analysis, Cluster Grouping, Databases, Equations (Mathematics)
An Intelligent System for Document Retrieval in Distributed Office Environments.
Peer reviewed Peer reviewed
Mukhopadhyay, Uttam; And Others – Journal of the American Society for Information Science, 1986
MINDS (Multiple Intelligent Node Document Servers) is a distributed system of knowledge-based query engines for efficiently retrieving multimedia documents in an office environment of distributed workstations. By learning document distribution patterns and user interests and preferences during system usage, it customizes document retrievals for…
Descriptors: Artificial Intelligence, Charts, Databases, Graphs
The Relationship between Journal Productivity and Obsolescence.
Peer reviewed Peer reviewed
Wallace, Danny P. – Journal of the American Society for Information Science, 1986
Examines relationship between journal productivity (number of references to particular journal) and journal obsolescence (median age of references to particular journal) for database of references dealing with desalination. Citation age by Bradford zones, continuous measurement of productivity and citation age, and underlying structure of observed…
Descriptors: Citations (References), Databases, Graphs, Hypothesis Testing
Calibrating Databases.
Peer reviewed Peer reviewed
Fischhoff, Baruch; MacGregor, Donald – Journal of the American Society for Information Science, 1986
Reports on study that used set of measures for characterizing performance with different databases and set of hypotheses for predicting search difficulties based on cognitive processes involved in decision-making aspects of information search. Highlights include confidence assessment, system design criteria, transparency, metatransparency, and…
Descriptors: Databases, Decision Making, Graphs, Information Systems