Precision and Recall in Title Keyword Searches.
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ERIC Institute of Education Sciences
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| Format: | Recurso educativo Open Access |
| Language: | en |
| Published: |
1994
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| _version_ | 1867181367451713536 |
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| author | McJunkin, Monica Cahill |
| author_facet | McJunkin, Monica Cahill McJunkin, Monica Cahill |
| collection | Education Resources Information Center |
| contents | Precision and Recall in Title Keyword Searches. McJunkin, Monica Cahill Bibliographic Databases Bibliographic Records Cataloging Comparative Analysis Keywords Library Catalogs Online Searching Performance Relevance (Information Retrieval) Search Strategies This study examines precision and recall for title and keyword searches performed in the "FirstSearch" WorldCat database when keywords are used with and without adjacency of terms specified. A random sample of 68 titles in economics were searched in the OCLC (Online Computer Library Center) Online Union Catalog in order to obtain their Library of Congress subject headings. After limiting by year and language, keywords were searched in "FirstSearch" with and without adjacency of the keywords specified. Subject headings of titles retrieved in keyword searches were compared with sample title subject headings to determine the degree of match, or relevancy. Figures for precision (the percentage of retrieved elements which are relevant) and recall (the percentage of relevant items in the database that were retrieved) were compared to determine whether the use of adjacency operators significantly alters the effectiveness of title keyword searches. Precision was improved with little degradation in recall when the keywords were discipline-specific. Other factors affecting overall levels of precision and recall include the number of terms and number of subject headings assigned to the sample titles. It is hoped that the results of this study will help build a framework in which to view keyword search strategies. (Contains 22 references.) (Author) |
| format | Recurso educativo Open Access |
| id | eric_ED376852 |
| institution | ERIC Institute of Education Sciences |
| language | en |
| publishDate | 1994 |
| record_format | eric |
| spellingShingle | Precision and Recall in Title Keyword Searches. McJunkin, Monica Cahill Bibliographic Databases Bibliographic Records Cataloging Comparative Analysis Keywords Library Catalogs Online Searching Performance Relevance (Information Retrieval) Search Strategies Precision and Recall in Title Keyword Searches. McJunkin, Monica Cahill Bibliographic Databases Bibliographic Records Cataloging Comparative Analysis Keywords Library Catalogs Online Searching Performance Relevance (Information Retrieval) Search Strategies This study examines precision and recall for title and keyword searches performed in the "FirstSearch" WorldCat database when keywords are used with and without adjacency of terms specified. A random sample of 68 titles in economics were searched in the OCLC (Online Computer Library Center) Online Union Catalog in order to obtain their Library of Congress subject headings. After limiting by year and language, keywords were searched in "FirstSearch" with and without adjacency of the keywords specified. Subject headings of titles retrieved in keyword searches were compared with sample title subject headings to determine the degree of match, or relevancy. Figures for precision (the percentage of retrieved elements which are relevant) and recall (the percentage of relevant items in the database that were retrieved) were compared to determine whether the use of adjacency operators significantly alters the effectiveness of title keyword searches. Precision was improved with little degradation in recall when the keywords were discipline-specific. Other factors affecting overall levels of precision and recall include the number of terms and number of subject headings assigned to the sample titles. It is hoped that the results of this study will help build a framework in which to view keyword search strategies. (Contains 22 references.) (Author) |
| title | Precision and Recall in Title Keyword Searches. |
| topic | Bibliographic Databases Bibliographic Records Cataloging Comparative Analysis Keywords Library Catalogs Online Searching Performance Relevance (Information Retrieval) Search Strategies |
| url | https://eric.ed.gov/?id=ED376852 |