Question answering system is composed of three parts which is question analysis, information retrieval and answer extraction.
问答系统由问题理解、信息检索、答案抽取三个部分组成。
In this article, we improve general method of question Analysis that our system can now answer user questions with high precision.
该文将对常规的问题理解方法进行改进，从而使系统能够较准确地回答用户的提问。
Then, we put forward the model of the question understanding sub-system borrowed the idea of Chinese question analysis of computational linguistics.
然后从现代汉语疑问句的计算语言学分析入手，提出了虚拟信息顾问——问题理解子系统的模型。
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