基于Web的受限领域问答系统研究及应用

Research on Web-based Question Answering System in Restricted Domains

自动问答技术是自然语言处理领域中一个非常热门的研究方向,它综合运用了自然语言处理技术,传统的问答系统的知识库一般是基于固定的文档集合,丰富的网络资源为问答系统提供了另外一种良好的知识来源,提出并构建了一个基于网络的天气预报领域的问答系统,通过缩小问题的覆盖面的方法,提高了系统的准确性。

Resent years, the Automatic Question Answering technique has become a popular research field in Natural Language Processing. The knowledge base of the traditional Question Answering system is generally based on the set of fixed texts, while the abundant information in the Web provides the QA system with another kind of resources. This paper develops a Web-based Restricted Chinese QA system, Testing with a small set of queries on weather domain, and improving high precision of the system.