Library and Information Science

Library and Information Science ISSN: 2435-8495
三田図書館・情報学会 Mita Society for Library and Information Science
〒108‒8345 東京都港区三田2‒15‒45 慶應義塾大学文学部図書館・情報学専攻内 c/o Keio University, 2-15-45 Mita, Minato-ku, Tokyo 108-8345, Japan
Library and Information Science 17: 121-132 (1979)

原著論文Original Article

LISAデータベースの特色と利用上の考慮事項索引ファイルの観点からThe characteristics of search keys for LISA databases

慶鷹義塾大学図書館・情報学科助教授Associate Professor, School of Library and Information Science, Keio University ◇ 〒108-8345 東京都港区三田二丁目15番45号 ◇ Mita 2-15-45, Minato-ku, Tokyo 108-8345, Japan

発行日:1980年3月25日Published: March 25, 1980

LISA machine-readable tapes have been produced since 1976 and become an important database for the information retrieval systems which provide “library and information fields” with document information. LISA tapes are the replica of the printed-versions and they also have following unique access points; 1) classification codes, made of CRG classification schedule. 2) two kinds of uncontrolled keywords sets, one is classification headings and the other is the entries to be appeared in the printed alphabetical subject index.

These access points themselves are powerful tools as search keys for machine systems, but search methods will be different between machine and manual systems. Therefore, it is not wise to use them which are devised for the printed-versions in the machine system without any modification. For example, manual searches from multiple aspects can only be done in the alphabetical subject index. Classification codes and classification headings are made only for single aspect searches.

This paper analyzes three kinds of access points from the point of recall and precision, and presents access procedure from their constituents to the access points and reasons why they are valuable.

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