Descriptor
| Information Retrieval | 3 |
| Research Methodology | 3 |
| Statistical Distributions | 3 |
| Comparative Analysis | 2 |
| Evaluation Methods | 1 |
| Indexing | 1 |
| Measurement Techniques | 1 |
| Navigation (Information… | 1 |
| Online Searching | 1 |
| Predictor Variables | 1 |
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| Bertot, John Carlo | 1 |
| Biswas, S. C. | 1 |
| Mahapatra, M. | 1 |
| McClure, Charles R. | 1 |
| Moen, William E. | 1 |
| Robertson, S. E. | 1 |
| Rubin, Jeffrey | 1 |
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| Journal Articles | 3 |
| Reports - Research | 2 |
| Reports - Evaluative | 1 |
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Peer reviewedRobertson, S. E. – Information Processing and Management, 1990
Discusses the problem of determining an adequate sample size for an information retrieval experiment comparing two systems on separate samples of requests. The application of statistical methods to information retrieval experiments is discussed, the Mann-Whitney U Test is used for determining minimum sample sizes, and variables and distributions…
Descriptors: Comparative Analysis, Information Retrieval, Measurement Techniques, Predictor Variables
Peer reviewedMahapatra, M.; Biswas, S. C. – International Library Review, 1984
Describes research which measured the efficiency of role operators through frequency of appearances in PRECIS input strings for 200 abstracts related to taxation, genetic psychology, and Shakespearian drama. Frequencies of appearance of major categories of role operators, role operators in different subjects, individual main line operators, and…
Descriptors: Comparative Analysis, Indexing, Information Retrieval, Relevance (Information Retrieval)
Peer reviewedBertot, John Carlo; McClure, Charles R.; Moen, William E.; Rubin, Jeffrey – Government Information Quarterly, 1997
One means of Web use evaluation is through analysis of server-generated log files. Various log file analysis techniques and issues are presented that are related to the interpretation of log file data. Study findings indicate a number of problems; recommendations and areas needing further research are outlined. (AEF)
Descriptors: Evaluation Methods, Information Retrieval, Navigation (Information Systems), Online Searching
