受控标引

主题标引依是否使用词表，分为自由标引和受控标引两种。网架节点球全球面数控分度夹紧装置研制

Thematic indexing is divided into free indexing and controlled indexing according to the post-trial world-list . The Study of a Numerical Controlled Indexing Mechanism for All the Surface of Bolted Sphere Node of Grid 's Machining

分析了建立情报检索系统时受控主题标引的不足之处：标引效率低、语义网得不到扩充、不一致的组配标引。

Some problems in controlled thesaurus indexing are pointed out : low indexing efficiency , relation net among the descriptors and new terms aren 't developed , and uncertain coordinate indexing .

在手工检索、机检条件下形成的受控语言从标引到检索两方面都已基本成熟，网络信息资源的组织与检索涉及到自然语言如何与受控语言兼容并蓄问题。

We must solve the problem how to combine natural language and artificial language when we talk about organizing and retrieving Internet information resources .

介绍了标引词、关键词、关键短语、主题词、术语和受控词等自动标引相关的概念，确立关键词、关键短语或主题词为自动标引主体。

Describes automatic indexing related concepts , such as the indexing terms , keywords , key phrases , subject headings , terms and controlled vocabularies , and determine keywords , key phrases or subject headings as the automatic indexing subject .