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| Databases | 4 |
| Mathematical Formulas | 4 |
| Evaluation Methods | 2 |
| Information Retrieval | 2 |
| Models | 2 |
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| Tables (Data) | 2 |
| Algorithms | 1 |
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| Aigrain, Philippe | 1 |
| Burrell, Quentin L. | 1 |
| Fenton, Michael R. | 1 |
| Larson, Ray R. | 1 |
| Longueville, Veronique | 1 |
| Savoy, Jacques | 1 |
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| Information Analyses | 4 |
| Journal Articles | 4 |
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Peer reviewedBurrell, Quentin L.; Fenton, Michael R. – Journal of the American Society for Information Science, 1993
Discusses the generalized inverse Gaussian-Poisson (GIGP) process for informetric modeling. Negative binomial distribution is discussed, construction of the GIGP process is explained, zero-truncated GIGP is considered, and applications of the process with journals, library circulation statistics, and database index terms are described. (50…
Descriptors: Bibliometrics, Databases, Library Circulation, Library Statistics
Peer reviewedAigrain, Philippe; Longueville, Veronique – Journal of the American Society for Information Science, 1994
Describes an evaluation model for expansion systems in information retrieval, i.e., systems expanding a user selection of documents to provide the user with a larger set of documents sharing the same or related characteristics. Highlights include a test protocol and evaluation measures for the efficiency of expansion systems. (Contains 29…
Descriptors: Correlation, Databases, Efficiency, Evaluation Methods
Peer reviewedSavoy, Jacques – Information Processing and Management, 1994
Proposes a new learning algorithm to improve the retrieval effectiveness of the search system used in the hypertext environment using an extended Boolean model with links to improve the ranking of retrieved items. Highlights include the basic retrieval scheme, the learning scheme, and a review of basic probabilistic retrieval models. (Contains 32…
Descriptors: Algorithms, Database Design, Databases, Hypermedia
Peer reviewedLarson, Ray R. – Journal of the American Society for Information Science, 1992
Discusses subject searching problems in online library catalogs; explains advanced information retrieval (IR) techniques; and describes experiments conducted on a test collection database, CHESHIRE (California Hybrid Extended SMART for Hypertext and Information Retrieval Experimentation), which was created to evaluate IR techniques in online…
Descriptors: Classification, College Libraries, Databases, Evaluation Methods
