1) developmental key
发展关键
3) development of key technologies
关键技术的发展
5) theory of human critical development period
人的发展关键期
6) keywords expansion
关键词扩展
1.
To deal with the Chinese complex questions,this paper introduces a question classification method and extraction based on the question pattern library which is built automatically,and a keywords expansion method is proposed based on online encyclopaedia and searching engine in order to improve the QA system performance.
基于自动构建的问句模板库,对中文复杂类问题进行问题分类和关键词抽取,并提出一种基于在线百科知识和搜索引擎的关键词扩展方法,从而提高了系统的整体表现。
补充资料：金属材料发展史(见材料发展史)
金属材料发展史(见材料发展史)
history of metallic material
金属材料发展史historyor metalli。material见材料发展史。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条