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Predicting Document Retrieval System Performance: An Expected Precision Measure.
Peer reviewed Peer reviewed
Losee, Robert M., Jr. – Information Processing and Management, 1987
Describes an expected precision (EP) measure designed to predict document retrieval performance. Highlights include decision theoretic models; precision and recall as measures of system performance; EP graphs; relevance feedback; and computing the retrieval status value of a document for two models, the Binary Independent Model and the Two Poisson…
Descriptors: Documentation, Feedback, Graphs, Information Retrieval
Implementations of Partial Document Ranking Using Inverted Files.
Peer reviewed Peer reviewed
Wong, Wai Yee Peter; Lee, Dik Lun – Information Processing and Management, 1993
Discussion of search strategies in information retrieval systems focuses on the implementation of document ranking based on inverted files. Highlights include descriptions of three heuristic methods for implementing a weighting strategy and a comparison of two methods for estimating retrieval accuracy, including document movement and linear…
Descriptors: Comparative Analysis, Graphs, Heuristics, Information Retrieval
On the Distribution of Relevance Judgments.
Janes, Joseph W. – Proceedings of the ASIS Annual Meeting, 1993
Examines the statistical distribution of relevance judgments by reviewing and comparing the results of several studies over the last three decades. A characteristic distribution is examined, and a hypothesis is offered to explain it based on human judging characteristics and the nature of relevance experimentation. (Contains 13 references.) (LRW)
Descriptors: Charts, Comparative Analysis, Evaluative Thinking, Graphs
Information Retrieval by Logical Imaging.
Peer reviewed Peer reviewed
Crestani, F.; Van Rijsbergen, C. J. – Journal of Documentation, 1995
Discusses the use of logical imaging in information retrieval. Topics include the use of nonclassical logic in information retrieval; imaging and possible worlds semantics; retrieval by imaging; evaluation processes; worlds mass and worlds distance; and future work. (LRW)
Descriptors: Evaluation Methods, Futures (of Society), Graphs, Information Retrieval
Hypermedia and Free Text Retrieval.
Peer reviewed Peer reviewed
Dunlop, Mark D.; van Rijsbergen, C. J. – Information Processing and Management, 1993
Discusses access to nontextual documents in large multimedia document bases. A hybrid information retrieval model, using queries in a hypertext environment for location of browsing areas, is presented; and two experiments using cluster-based descriptions of content are reported. (23 references) (EA)
Descriptors: Computer System Design, Graphs, Hypermedia, Indexing
Electronic Document Management Systems: Where Are They Today?
Peer reviewed Peer reviewed
Koulopoulos, Thomas M.; Frappaolo, Carl – CD-ROM Professional, 1993
Discusses developments in document management systems based on a survey of over 400 corporations and government agencies. Text retrieval and imaging markets, architecture and integration, purchasing plans, and vendor market leaders are covered. Five graphs present data on user preferences for improvements. A sidebar article reviews the development…
Descriptors: Full Text Databases, Graphs, Information Management, Information Retrieval
Evaluation of an Automated Keywording System.
Malone, Linda C.; And Others – Microcomputers for Information Management, 1990
Discussion of automated indexing techniques focuses on ways to statistically document improvements in the development of an automated keywording system over time. The system developed by the Joint Chiefs of Staff to automate the storage, categorization, and retrieval of information from military exercises is explained, and performance measures are…
Descriptors: Artificial Intelligence, Automatic Indexing, Evaluation Methods, Graphs