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| Experiments | 2 |
| Information Retrieval | 2 |
| Relevance (Information… | 2 |
| Search Strategies | 2 |
| Automatic Indexing | 1 |
| Costs | 1 |
| Documentation | 1 |
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| Information Processing and… | 1 |
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| Jones, K. Sparck | 1 |
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Peer reviewedJones, K. Sparck – Information Processing and Management, 1979
Describes large scale experiments to test the value of index term weighting based on relevance information, and presents results showing that weighting leads to remarkable improvements in retrieval performance. (Author/CWM)
Descriptors: Automatic Indexing, Experiments, Information Retrieval, Performance Factors
Westat Research, Inc., Rockville, MD. – 1968
The following topics are included in this document: (1) evaluation of plans for implementation of new systems; (2) macroevaluation of document retrieval systems; (3) microevaluation of retrospective searching; (4) evaluation of document acquisition functions; evluation of indexing and indexing languages; (5) evaluation of document screening; (6)…
Descriptors: Costs, Documentation, Evaluation Methods, Experiments
