自然语言在Pubmed检索系统中的应用

Application of Natural Language in Pubmed Retrieval System

自然语言检索是情报检索的发展趋势。Ｐｕｂｍｅｄ检索系统通过自然语言自动转换及截词检索、词组的自动识别及特定符号的使用、限定检索范围、Ｐｒｅｖｉｅｗ／Ｉｎｄｅｘ等功能，有效地克服了自然语言检索的局限，提高了检索效率。

Natural language retrieval is the trend of information retrieval. It is by natural language automatic translation and truncation retrieval, automaticly recognizing phrase and specific symbol, refining retrieval fields and Preview/Index, and so on that can effectively avoid disadvantage of natural language retrieval, and enhancingr etrieval efficient.