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
- Balfour Declaration（1926）
- Bal Gangadhar Tilak
- B*-algebra
- Bali
- Balian-Werthamer state
- Balian Werthamer states
- Baligang
- Baligang Site
- Balihe Zhen
- Balikun horse
- Balinese
- Balinese dance
- baling
- Baling Bridge
- baling hay
- baling machine for staple fiber
- Baling opera
- Baliqiao
- Bali Road Map
- Bali roadmap
- Bali sardinella
- Balkan League
- Balkan Wars
- Balkars
- balking