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联机目录可大大提高主题检索能力 ,人们早已达成共识。F· W·兰开斯特等人于 1991年提出了篇名与分类号更多的是与著作固有的主题发生重合 ,而不是提供更深层次的检索点。据此 ,许红和兰开斯特从 OCLC的联机目录中进行提样研究 ,认为联机目录在检索方面比在提供每本书详尽的主题表达式方面具有更高的区别能力。表 5。图 1。参考文献 6。
Online catalog can greatly improve the subject search capabilities, people have long been reached a consensus. Frying Lancaster et al. In 1991 proposed that the topic name and classification number more coincide with the subject’s inherent theme rather than providing deeper points of search. Based on this, Xu Hong and Lancaster conducted a sample study from OCLC’s online catalog, arguing that online catalogs have a much higher discernibility in retrieval than in providing a detailed thematic expression for each book. table 5. figure 1. Reference 6.