A COMPARISON OF 2 METHODS FOR INDEXING AND RETRIEVAL FROM A FULL-TEXT MEDICAL DATABASE

被引:0
|
作者
HERSH, WR
HICKAM, DH
机构
来源
PROCEEDINGS OF THE ASIS ANNUAL MEETING | 1992年 / 29卷
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中图分类号
TP [自动化技术、计算机技术];
学科分类号
0812 ;
摘要
This study evaluated the use of two information retrieval systems on a 2,000-document full-text database. The first system, SAPHIRE, features concept-based automated indexing and statistical retrieval techniques, while the second system, SWORD, features traditional word-based Boolean techniques. Sixteen medical students each conducted ten queries. Their results, as measured by recall and precision, showed nearly equal performance for both methods. A post-study questionnaire indicated that this was a novice group of searchers who had about equal preference for each approach. SAPHIRE was also compared with a version of SWORD modified to use automated indexing and ranked retrieval. Using batch input of queries, the latter method performed slightly better.
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页码:221 / 230
页数:10
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