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A Corpus-based Approach to English subordinate Clause Identification

High Technology Letters 2001年第1期7卷 10-12页

作者：张晶 Zhao Tiejun Li Sheng Yao Jianmin Department of Computer Science and Engineering Harbin Institute of Technology

The complex sentence structure of English is a bottleneck to our practical machine translation system. The simplification of English subordinate clauses will greatly relieves the burden of parsing and other grammatical or semantic analysis of a complex sentence, thus improves the output quality of the MT system. But there have not any satisfactory research achievements reported in this field up to now as we know. In this paper, author’s work on a corpus-based approach to English subordinate clause identification is reported. The approach integrates rule-based and statistical methods to get the left and right boundaries of the subordinate clauses. The Penn Treebank corpus is used as the training standard. The precision and recall ratios of subordinate clause identification are tested on both closed and open corpora. A result of 92.9% precision and 91.26% recall is obtained for the closed test and the open test result is 80.34% precision and 83.93% recall. This algorithm has been integrated into our machine translation system. The method can also be applied to processing of any other language.

关键词： subordinate clauses Corpus Knowledge acquisition

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Study of Taiwan Residents children＇s application of noun and relative clauses in their oral responses

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Sino-US English Teaching 2008年第5期5卷 45-54页

作者： CHEN Hsiao-ching Department of Applied Foreign Language Chienkuo Technology University Changhua 500 Taiwan

Over the past years studies have pointed out that 5 to 6-year-old children are able to use complex sentences in their oral language. Complex sentences may contain different kinds of subordinate or embedded clauses such as noun clauses, adverbial clauses or relative clauses, which again may be respectively divided into smaller units in terms of function and form. It is interesting therefore to investigate how subordinate clauses are applied by 5 to 6-year-old Chinese-speaking children. The present study, which is based on the verbal responses of 10 Taiwan Residents upper-level kindergarteners aged from 5.5 to 6.5 years, aims to investigate specifically how two kinds of subordinate clauses, namely noun and relative clauses, are applied in children＇s speech. Data analysis shows that of the 4 kinds of noun clauses, only object noun clauses are applied by the child-respondents. With their much more complex syntactic constructions, noun clauses, compliment noun clauses and appositive noun clauses do not appear in their oral responses at all. Concerning relative clauses and their derived participle phrases, none of the respondents apply any V＋的＋N construction in their verbal responses. The VO＋的＋N construction is used by 7 respondents, while the S＋的＋N construction is used by 5 respondents.

关键词： kindergartners subordinate clauses noun clauses relative clauses

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