论"引文索引"的特性及其对发展中国家的适用性

引文索引以十分接近自然语言的引用文献为检索语言,摆脱了传统检索工具必须用特定的检索语言"词典"的种种制约;引文索引自有一套特殊的结构和运作程序,它以文章的主题思想将各种相关文献组合起来,从而取得跨越学科、时间和空间以及高引得深度的检索功效.引文索引与核心期刊相结合,可以不足10%的期刊,取得相当于全部期刊的90%的信息量.这些特殊功效对于急需建立适合本国国情的信息系统的发展中国家来说,具有十分重要的现实意义.

The Characters of Citation Index and Its Suitability for Developing Country

In Citation Index (I), references of papers are used as oticeval language. CI needs not any man -made "Dictionaries of subject terms" which are other traditional research tools needed in general. Reference terms are very closed with natural language. Consequently, it can extricate some major shackles produced in the process of traditional method of retrieval. The special structure of CI could relign a lot of related documents through the similar subject term of references used in CI and leap over the sealm of different sciences time and space. In CI 10% core periodicals could provid almost 90% main informations of all periodicals as a whole. These efficacies are very practical and important for developing countries.