| 基于转换和映射的语义单元自动获取 |
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| 引用本文： | 方淼,曹井香.基于转换和映射的语义单元自动获取[J].高技术通讯,2009,19(1). |
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| 作者姓名： | 方淼 曹井香 |
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| 作者单位： | 大连理工大学计算机科学与工程系,大连,116024 |
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| 基金项目： | 国家高技术研究发展计划(863计划) |
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| 摘 要： | 提出了一种基于转换和映射的英汉双语语料的语义单元自动获取方法,即构造一套规则系统对英语句子的链语法分析结果进行处理,以设定单词的语义层次并转换生成语义单元的英语表示(ESER);然后利用统计双语词对齐将之映射为语义单元的汉语表示(CSER),从而获得双语语义单元;最后通过语义单元表示实量竞争、合并以及召回等一系列策略对自动获取结果进行优化.该方法能够在缺少完全语义分析的情况下实现语义单元的自动获取.实验结果表明双语语义单元自动获取的F值达到了74.06%,基于语义单元的机器翻译系统具有准确率高的特点.
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| 关 键 词： | 语义单元 自动获取 链语法 词语对齐 |
Automatic extraction of semantic elements based on transformation and mapping |
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| Fang Miao,Cao Jingxiang.Automatic extraction of semantic elements based on transformation and mapping[J].High Technology Letters,2009,19(1). |
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| Authors: | Fang Miao Cao Jingxiang |
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| Affiliation: | Fang Miao,Cao Jingxiang(Department of Computer Science and Engineering,Dalian University of Technology,Dalian 116024) |
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| Abstract: | The paper proposes an approach to automatic extraction of semantic elements (SEs) from the English-Chinese bilingual parallel corpus. Its work consists of three parts: first, constructing a set of rules from the chain of English sentences parsed by the link parser to determine the relative logical hierarchy of each word to generate the English semantic element representation (ESER) based on the transformational algorithm, then, mapping the ESER into the Chinese semantic element representation (CSER) accordi... |
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| Keywords: | semantic element automatic extraction link grammar word alignment |
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