Redundancy and Uniqueness of Subject Access Points in Online Catalogs.
Fuente:
ERIC Institute of Education Sciences
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| Autori principali: | , |
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| Natura: | Recurso educativo Open Access |
| Lingua: | en |
| Pubblicazione: |
1998
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| _version_ | 1867181575373848578 |
|---|---|
| author | Xu, Hong Lancaster, F. W. |
| author_facet | Xu, Hong Lancaster, F. W. Xu, Hong Lancaster, F. W. |
| collection | Education Resources Information Center |
| contents | Redundancy and Uniqueness of Subject Access Points in Online Catalogs. Xu, Hong Lancaster, F. W. Classification Comparative Analysis Indexing Online Catalogs Online Searching Performance Permuted Indexes Redundancy Relevance (Information Retrieval) Subject Index Terms Union Catalogs An analysis of 205 records in the OCLC Online Union Catalog (OLUC) found considerable duplication among subject access points provided by title, subject heading, and classification number fields. On average, only 4.12 unique access points were found per record. The results suggest that online catalogs might outperform card catalogs more in precision than recall. (PEN) |
| format | Recurso educativo Open Access |
| id | eric_EJ566595 |
| institution | ERIC Institute of Education Sciences |
| language | en |
| publishDate | 1998 |
| record_format | eric |
| spellingShingle | Redundancy and Uniqueness of Subject Access Points in Online Catalogs. Xu, Hong Lancaster, F. W. Classification Comparative Analysis Indexing Online Catalogs Online Searching Performance Permuted Indexes Redundancy Relevance (Information Retrieval) Subject Index Terms Union Catalogs Redundancy and Uniqueness of Subject Access Points in Online Catalogs. Xu, Hong Lancaster, F. W. Classification Comparative Analysis Indexing Online Catalogs Online Searching Performance Permuted Indexes Redundancy Relevance (Information Retrieval) Subject Index Terms Union Catalogs An analysis of 205 records in the OCLC Online Union Catalog (OLUC) found considerable duplication among subject access points provided by title, subject heading, and classification number fields. On average, only 4.12 unique access points were found per record. The results suggest that online catalogs might outperform card catalogs more in precision than recall. (PEN) |
| title | Redundancy and Uniqueness of Subject Access Points in Online Catalogs. |
| topic | Classification Comparative Analysis Indexing Online Catalogs Online Searching Performance Permuted Indexes Redundancy Relevance (Information Retrieval) Subject Index Terms Union Catalogs |
| url | https://eric.ed.gov/?id=EJ566595 |