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Overlap in Bibliographic Databases.
Peer reviewed Peer reviewed
Hood, William W.; Wilson, Concepcion S. – Journal of the American Society for Information Science and Technology, 2003
Examines the topic of Fuzzy Set Theory to determine the overlap of coverage in bibliographic databases. Highlights include examples of comparisons of database coverage; frequency distribution of the degree of overlap; records with maximum overlap; records unique to one database; intra-database duplicates; and overlap in the top ten databases.…
Descriptors: Bibliographic Databases, Comparative Analysis, Literature Reviews, Statistical Distributions
The Scatter of Documents over Databases in Different Subject Domains: How Many Databases Are Needed?
Peer reviewed Peer reviewed
Hood, William W.; Wilson, Concepcion S. – Journal of the American Society for Information Science and Technology, 2001
Examines the distribution of bibliographic records in online bibliographic databases using 14 different search topics on DIALOG. Discusses the presence of duplicate records and problems with lexical ambiguity, and concludes that the number of databases needed for searches with varying complexities of search strategies is much more topic dependent…
Descriptors: Bibliographic Databases, Bibliographic Records, Intellectual Disciplines, Online Searching
Indexing Terms in the LISA Database on CD-ROM.
Peer reviewed Peer reviewed
Hood, William; Wilson, Concepcion S. – Information Processing and Management, 1994
Summarizes the findings of a recent study on the indexing practices used in the Library and Information Science Abstracts (LISA) database. Descriptors, or indexing terms, from the thesaurus are analyzed; searching implications are discussed; and the relationship between the classification code and the descriptors is examined. (Contains 21…
Descriptors: Bibliographic Databases, Classification, Indexing, Library Science