短语结构到依存结构树库转换研究  

Research on treebank converting from phrase structures to dependency structures

作　　者：周惠巍[1] 黄德根[1] 钱志强[1] 杨元生[1] 

机构地区：[1]大连理工大学计算机科学与技术学院,辽宁大连116024

出　　处：《大连理工大学学报》2010年第4期609-613,共5页Journal of Dalian University of Technology

基　　金："八六三"国家高科技发展计划资助项目(2006AA012140)

摘　　要：为基于真实语料进行句法分析,构建了大规模的短语结构树库和依存结构树库,并尝试在两种结构的树库之间进行转换.讨论了宾州中文树库(Penn Chinese Treebank,CTB)中短语结构树库和依存结构树库的关系,并基于现代中文依存文法制定了中心子节点过滤表,依据该表将短语结构的CTB转换为依存结构树库.在CTB中随机抽取200句语料,转换正确率达到了99.50%.基于该转换得到的依存结构树库可以进一步进行中文依存关系解析的研究.Large-scale phrase structure treebank and dependency structure treebank are developed and interconverted for the purpose of syntactic analysis on true corpus. The head percolation table is constructed on modern Chinese dependency grammar by discussing the relationship between phrase structure and dependency structure based on Penn Chinese Treebank （CTB）,and CTB from phrase structure is converted to dependency structure treebank using the head percolation table. 200 sentences are chosen from CTB randomly to evaluate the conversion performance. Precision of the conversion has attained 99.50%. The achieved dependency structure treebank can be used to analyze Chinese dependency relation.

关 键 词：句法分析 短语结构 依存结构 树库 转换 

分 类 号：TP18[自动化与计算机技术—控制理论与控制工程]