%0 Journal Article
%T A Web-based Chinese Open-domain Question Answering System<br>基于Web的中文开放式问题回答系统
%A LIN Xu-Dong
%A PENG Hong
%A ZHENG Qi-Lun
%A CHEN Shao-Jian
%A <br>林旭东
%A 彭宏
%A 郑启伦
%A 陈绍坚
%J 计算机科学
%D 2006
%I 
%X The Internet is increasingly being used as a source of reference information.Most popular search engines, however,are not designed for answering natural language questions.A Web-based Chinese question answering system is made of four parts:question processing,information retrieval,answer extraction and answer justification.It utilizes named entity recognition,semantic dependency relations and case-based rule to realize answer extraction.Experiments show that named entity recognition,semantic dependency relations and case-based rule perform very well in answer ex- traction.
%K Question answering
%K Semantic dependency relations
%K Named entity recognition
%K Information extraction<br>问题回答
%K 语义依存关系
%K 命名实体识别
%K 信息抽取
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=8240383F08CE46C8B05036380D75B607&jid=64A12D73428C8B8DBFB978D04DFEB3C1&aid=96659B0BB8619D73&yid=37904DC365DD7266&vid=27746BCEEE58E9DC&iid=94C357A881DFC066&sid=CC0ECB9C52F1B85F&eid=527AEE9F3446633A&journal_id=1002-137X&journal_name=计算机科学&referenced_num=0&reference_num=9