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面向信息检索系统的语义资源规划 被引量:12
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作者 袁毓林 《语言科学》 CSSCI 2008年第1期1-11,共11页
文章通过分析问题回答等信息检索系统对于语义资源的需求,借鉴国外语义资源建设的实践和经验,指出面向处理汉语的信息检索系统的语义资源,至少应该包括下列三种:1)汉语词网(CWN),提供基本的词汇概念及其关系信息;2)汉语谓词网(CVN),提... 文章通过分析问题回答等信息检索系统对于语义资源的需求,借鉴国外语义资源建设的实践和经验,指出面向处理汉语的信息检索系统的语义资源,至少应该包括下列三种:1)汉语词网(CWN),提供基本的词汇概念及其关系信息;2)汉语谓词网(CVN),提供谓词的论元角色及其句法配置信息;3)汉语命题库(CPB),提供谓词的论元结构在真实文本中如何实现为命题结构的信息。还根据英语WordNet、VerbNet和Prop-Bank的建设和应用情况,结合作者近年来学习语义学理论、研究和建设语义资源的实践和体会,分别说明这三种语义资源的设计目标、内容规模、体系结构和具体的建造策略与步骤等具体问题。 展开更多
关键词 信息检索 语义资源 汉语词网 汉语 汉语命题库
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Chinese word sense disambiguation based on neural networks
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作者 刘挺 卢志茂 +1 位作者 郎君 李生 《Journal of Harbin Institute of Technology(New Series)》 EI CAS 2005年第4期408-414,共7页
The input of a network is the key problem for Chinese word sense disambiguation utilizing the neural network. This paper presents an input model of the neural network that calculates the mutual information between con... The input of a network is the key problem for Chinese word sense disambiguation utilizing the neural network. This paper presents an input model of the neural network that calculates the mutual information between contextual words and the ambiguous word by using statistical methodology and taking the contextual words of a certain number beside the ambiguous word according to (-M,+N).The experiment adopts triple-layer BP Neural Network model and proves how the size of a training set and the value of Mand Naffect the performance of the Neural Network Model. The experimental objects are six pseudowords owning three word-senses constructed according to certain principles. The tested accuracy of our approach on a closed-corpus reaches 90.31%, and 89.62% on an open-corpus. The experiment proves that the Neural Network Model has a good performance on Word Sense Disambiguation. 展开更多
关键词 word sense disambiguation artificial neural network mutual information pseudowords
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