新闻出版　知识服务 知识元提取与标引 Press and publication—Knowledge services— Extraction and marking up of knowledge element  ICS  01.140.40 CCS  A 19   中华人民共和国国家标准 GB/T 45257—2025 2025-02-2 8发布 2025-06-0 1实施     国家市场监督管理总局 国家标准化管理委员会 发 布目　　次 前言   ·····································································································   Ⅲ 1     范围   ··································································································   1 2     规范性引用文件   ······················································································   1 3     术语和定义   ···························································································   1 4     缩略语   ································································································   1 5     提取与标引对象   ······················································································   2      5.1     提取对象   ·························································································   2      5.2     标引对象   ·························································································   2 6     提取与标引方式   ······················································································   2      6.1     提取原则与方式   ·················································································   2      6.2     标引原则与方式   ·················································································   3 7     提取规则与规格   ······················································································   3      7.1     提取规则   ·························································································   3      7.2     提取规格   ·························································································   5 8     标引规则与规格   ······················································································   6      8.1     标引用词   ·························································································   6      8.2     定位信息   ·························································································   6      8.3     标引定位   ·························································································   6      8.4     标引粒度   ·························································································   7      8.5     标引规则   ·························································································   7      8.6     标引规格   ·························································································   8 9     提取与标引流程   ······················································································   9      9.1     基本流程   ·························································································   9      9.2     提取流程描述   ····················································································   9      9.3     标引流程描述   ···················································································   10 10     提取与标引质量   ····················································································   10      10.1     提取基本要求   ··················································································   10      10.2     标引基本要求   ··················································································   10 参考文献   ································································································   12 GB/T 45257—2025     Ⅰ