理学 自动问答技术 释 knowledge extraction 知识抽取 把蕴含于信息源中的知识经过识别、理解、筛选、归纳等过程抽取出来，存储形成知识元库。
人工智能 知识工程 释文 knowledge extraction 知识提取
- covariate measure error
- covariation
- covaseal
- covector
- covellite
- covenant
- Covenanters
- Covenant of Union of Central America
- covenant texts
- covenant theology
- Coventry
- cover
- coverability
- coverability graph
- coverability tree
- coverage
- coverage criteria
- coverage factor
- coverage function
- coverage of urban park service radius
- coverage on the Lincheng Outrage
- coverage probability
- coverage ratio of documents
- cover and cut method
- Cover and Edit News