%0 Journal Article
%T Retrieval Based on Lexical Chains in Q&A System<br>基于语义链的检索在QA系统中的应用
%A 张江涛
%A 杜永萍
%J 计算机科学
%D 2013
%I 
%X Question Answering System (QA) allows users to ask question in natural language. Using natural language processing technology, QA returns answer to the user automatically. I}he paper used WordNet to construct lexical chains, and used the lexical chain in a ctuestion answering system based on the Internet. Using two kinds of different way calculates similarity of Snippets download from Google to sort them according to similarity. When going for the first one and first ten Snippets, the accuracy of the answer snippets is increased by 13. 68 0 o and 25. 4 0 o. We made significant inspection for the experiment results. In significant level scheffe post hoc 0. 05 conditions, p=0. 000078 is got and the accuracy of the system is dramatically improved.
%K WordNet
%K Lexical chains
%K Question answering system<br>WorNet，语义链，问答系统
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=8240383F08CE46C8B05036380D75B607&jid=64A12D73428C8B8DBFB978D04DFEB3C1&aid=D8CF0D2A1D9D3361313C29CE15FC9D26&yid=FF7AA908D58E97FA&vid=1371F55DA51B6E64&iid=0B39A22176CE99FB&sid=4290346F7268639E&eid=94442A6F078ED193&journal_id=1002-137X&journal_name=计算机科学&referenced_num=0&reference_num=0