Full text database retrieval performance
Full text database retrieval performance
复制标题
全文数据库检索性能
DOI：
10.1108/eb024180
复制
发表时间：
1985
影响因子：
3.1
通讯作者：
C. Tenopir
中科院分区：
文献类型：
--
作者：
C. Tenopir
许多期刊的全文现在都可以在线搜索。这些全文数据库中的大多数都可以在提供书目信息访问的相同或类似的搜索系统上使用。该系统使用保留有限上下文信息(例如，段落和单词在段落中的位置)的倒排文件。所使用的检索技术只是早先为书目数据库开发的技术。检索依赖于布尔逻辑、带截断的词干搜索和单词邻近度规范。对全文数据库的显示进行了小幅调整，允许在上下文中显示导致检索的词语；但检索技术没有改变。这是因为依赖搜索系统提供对许多类型数据库的访问，所有这些数据库都是创建印刷出版物的改进技术的副产品。
Complete texts of many journals are now available for online searching. Most of these full text databases have been made available on the same or similar search systems that provide access to bibliographic information. The systems use inverted files that retain limited context information (e.g., paragraphs and location of words within paragraphs). The retrieval techniques used are simply those that were developed earlier for bibliographic databases. Retrieval relies on Boolean logic, word stem searching with truncation, and word proximity specification. Minor adjustments have been made for the display of full text databases, allowing words resulting in retrieval to be displayed in context; but changes have not been made in retrieval techniques. This is due to the reliance on search systems that provide access to many types of databases, all of which are by‐products of improved techniques for creating printed publications.