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| Main Authors: | , |
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| Format: | Recurso educativo Open Access |
| Language: | en |
| Published: |
1974
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| Subjects: | |
| Online Access: | https://eric.ed.gov/?id=ED143373 |
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| _version_ | 1867181682216402944 |
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| author | Deutsch, Donald R. Kraft, Donald H. |
| author_facet | Deutsch, Donald R. Kraft, Donald H. Deutsch, Donald R. Kraft, Donald H. |
| collection | Education Resources Information Center |
| contents | A Study of an Information Retrieval Performance Measure: Expected Search Length as a Function of File Size and Organization. Deutsch, Donald R. Kraft, Donald H. Evaluation Indexing Information Retrieval Information Storage Information Systems Information Theory Libraries Literature Reviews Measurement Models Organization A framework is developed to evaluate expected search length, an important measure of an information storage and retrieval system's performance, as a function of the size of the information file and its organization in terms of indexing search structure. Previous research pertaining to search length by W.S. Cooper and others is surveyed and extended. A conceptualization recognizing a dichotomy of retrieval activities--intellectual access versus physical access--is presented. Three cases are analyzed to demonstrate the benefits of indexing and organizing an information file. The applicability of such a model to library systems is demonstrated and potential areas for future research are identified. (Author/KP) |
| format | Recurso educativo Open Access |
| id | eric_ED143373 |
| institution | ERIC Institute of Education Sciences |
| language | en |
| publishDate | 1974 |
| record_format | eric |
| spellingShingle | A Study of an Information Retrieval Performance Measure: Expected Search Length as a Function of File Size and Organization. Deutsch, Donald R. Kraft, Donald H. Evaluation Indexing Information Retrieval Information Storage Information Systems Information Theory Libraries Literature Reviews Measurement Models Organization A Study of an Information Retrieval Performance Measure: Expected Search Length as a Function of File Size and Organization. Deutsch, Donald R. Kraft, Donald H. Evaluation Indexing Information Retrieval Information Storage Information Systems Information Theory Libraries Literature Reviews Measurement Models Organization A framework is developed to evaluate expected search length, an important measure of an information storage and retrieval system's performance, as a function of the size of the information file and its organization in terms of indexing search structure. Previous research pertaining to search length by W.S. Cooper and others is surveyed and extended. A conceptualization recognizing a dichotomy of retrieval activities--intellectual access versus physical access--is presented. Three cases are analyzed to demonstrate the benefits of indexing and organizing an information file. The applicability of such a model to library systems is demonstrated and potential areas for future research are identified. (Author/KP) |
| title | A Study of an Information Retrieval Performance Measure: Expected Search Length as a Function of File Size and Organization. |
| topic | Evaluation Indexing Information Retrieval Information Storage Information Systems Information Theory Libraries Literature Reviews Measurement Models Organization |
| url | https://eric.ed.gov/?id=ED143373 |