Descriptor
Source
| Information Storage and… | 6 |
Author
| Gray, W. A. | 1 |
| Hall, J. L. | 1 |
| Hansen, Inge Berg | 1 |
| Hillman, Donald J. | 1 |
| Katzer, Jeffrey | 1 |
| Negus, A. E. | 1 |
| Rettenmayer, John W. | 1 |
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Rettenmayer, John W. – Information Storage and Retrieval, 1972
This study proposes and investigates file ordering and retrieval techniques which, it is hypothesized, will: (a) reduce the average cost of retrieving records which satisfy a query, and (b) increase the rate of retrieval in the initial portion of the response period. (8 references) (Author)
Descriptors: Cluster Grouping, Cost Effectiveness, Databases, Information Retrieval
Hansen, Inge Berg – Information Storage and Retrieval, 1973
A retrospective test search on one year of CA Condensates was carried out in order to calculate the costs per profile and to get an impression of how CA Condensates would suffice as a database for retrospective use. (11 references) (Author)
Descriptors: Cost Effectiveness, Information Retrieval, Information Storage, Information Systems
Katzer, Jeffrey – Information Storage and Retrieval, 1973
The cost-performance evaluation of an on line free-text bibliographic retrieval system, SUPARS, is reported. Two measures of cost were used in the evaluation: a computer processing charge expressed in dollars, and the number of documents retrieved. The measure of performance was an estimate of the recall ratio. (11 references) (Author/SJ)
Descriptors: Citations (References), Cost Effectiveness, Evaluation, Information Retrieval
Negus, A. E.; Hall, J. L. – Information Storage and Retrieval, 1971
Descriptors: Computers, Cost Effectiveness, Costs, Information Retrieval
Gray, W. A. – Information Storage and Retrieval, 1971
The technique described enables an on line computer based information retrieval system to aid indexers by selecting possible indexing terms to be assigned to a new document entering the system. The economic aspect of implementing the technique in a working information retrieval system is considered. (16 references) (Author/MM)
Descriptors: Automatic Indexing, Cost Effectiveness, Indexing, Information Systems
Hillman, Donald J. – Information Storage and Retrieval, 1973
The development of special-purpose information products for clients of the LEADERMART information retrieval system is described. (9 references) (RS)
Descriptors: Cost Effectiveness, Databases, Information Needs, Information Retrieval
