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基于确定信息的直接语法分析
引用本文:王忠林,赵启阳,尹宝林. 基于确定信息的直接语法分析[J]. 中北大学学报(自然科学版), 2008, 29(2): 131-135
作者姓名:王忠林  赵启阳  尹宝林
作者单位:北京航空航天大学,计算机学院,北京,100083;北京航空航天大学,计算机学院,北京,100083;北京航空航天大学,计算机学院,北京,100083
基金项目:国家重点基础研究发展计划(973计划)
摘    要:分析了句子中确定信息的特征,将其归结为不同层次的模式.分别对模式进行了形式化,对相同层次的模式赋予不同的优先级.利用这些确定信息,提出一个不经过词性消歧的直接语法分析算法:首先分析确定的信息,减少搜索空间,获得更多确定信息,并不断利用已有的信息进行深入的分析,最终导出正确的分析结果.实验显示:该算法精确率和召回率分别达到92.90%和91.47%.

关 键 词:确定信息  句子模式  语法分析  消歧
文章编号:1673-3193(2008)02-0131-05
修稿时间:2007-12-15

Determinate-Information Based Direct Syntax Parsing
WANG Zhong-lin,ZHAO Qi-yang,YIN Bao-lin. Determinate-Information Based Direct Syntax Parsing[J]. Journal of North University of China, 2008, 29(2): 131-135
Authors:WANG Zhong-lin  ZHAO Qi-yang  YIN Bao-lin
Abstract:The determinate information in Chinese sentences was analyzed and was induced to different level models.The models were formulized and different priorities were set for same level models.Using the determinate information,a new syntax parsing algorithm that needed no POS disambiguation was proposed.The algorithm parsed the determinate information,and reduced search space to get more determinate information.And by using new determinate information conducted deeper parsing,the right parsing result was finally obtained.Experiment shows that the precision and recall rate of the proposed method can achieve 92.9% and 91.47 respectively.
Keywords:determinate information  sentence model  syntax parsing  disambiguation
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