Descriptor
| Mathematical Models | 2 |
| Research Needs | 2 |
| Statistical Distributions | 2 |
| Bibliometrics | 1 |
| Heuristics | 1 |
| Information Retrieval | 1 |
| Mathematical Formulas | 1 |
| Measurement Techniques | 1 |
Publication Type
| Journal Articles | 2 |
| Reports - Research | 2 |
Education Level
Audience
Location
Laws, Policies, & Programs
Assessments and Surveys
What Works Clearinghouse Rating
Peer reviewedRousseau, Ronald – Journal of the American Society for Information Science, 1992
Proposes a mathematical model to explain the observed concentration or diversity of nominal classes in information retrieval systems. The Lorenz Curve is discussed, Information Production Process (IPP) is explained, and a heuristic explanation of circumstances in which the model might be used is offered. (30 references) (LRW)
Descriptors: Heuristics, Information Retrieval, Mathematical Models, Research Needs
Peer reviewedBurrell, Quentin L. – Information Processing and Management, 1992
Investigates the Leimkuhler curve and the Gini index from a probabilistic viewpoint for studying the concentration of bibliometric distributions. The importance of the time parameter and the special nature of the "nonproducers" in bibliometric studies are examined, standard models of bibliometric processes are described, and further…
Descriptors: Bibliometrics, Mathematical Formulas, Mathematical Models, Measurement Techniques
