%0 Journal Article
%T Research on the Shift Controlling Algorithm of Global and Immediate Focuses in Text Planning<br>文本规划中焦点移动控制算法的研究
%A YAO Tian-fang
%A TANG Xue-yan
%A <br>姚天昉
%A 汤学彦
%J 软件学报
%D 2000
%I 
%X The improvement on the shift rules of global and immediate focuses is presented.The improved rules can be used for more extensive domain.Based on Mckeown's focus algorithm,a new algorithm that adopts tree as a controlling structure instead of stack is proposed.It can control the shift of both global and immediate focuses simultaneously.The new algorithm improves the ATN representation of Schema by adding repeat property and priority information to the edge and incorporates the control of the recursion of Schema and backtrack mechanism.The filling and recursion of Schema are determined by the knowledge base.Moreover,the new algorithm can also handle the interchangeable symbols in the Schema.The design of an experimental system based on the proposed algorithm is introduced and the effectiveness of the algorithm is discussed.
%K Text planning
%K global focus
%K immediate focus
%K Schema
%K predicate<br>文本规划
%K 全局焦点
%K 局部焦点
%K 模式
%K 谓词.
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=8240383F08CE46C8B05036380D75B607&jid=7735F413D429542E610B3D6AC0D5EC59&aid=2F1D68E4DAB3C8CE&yid=9806D0D4EAA9BED3&vid=708DD6B15D2464E8&iid=0B39A22176CE99FB&sid=CAA7BAE04CB631A1&eid=03E56C113B4E5A88&journal_id=1000-9825&journal_name=软件学报&referenced_num=1&reference_num=10