This paper proposes a new way to improve the performance of dependency parser: subdividing verbs according to their grammatical functions and integrating the information of verb subclasses into lexicalized parsing mod...This paper proposes a new way to improve the performance of dependency parser: subdividing verbs according to their grammatical functions and integrating the information of verb subclasses into lexicalized parsing model. Firstly,the scheme of verb subdivision is described. Secondly,a maximum entropy model is presented to distinguish verb subclasses. Finally,a statistical parser is developed to evaluate the verb subdivision. Experimental results indicate that the use of verb subclasses has a good influence on parsing performance.展开更多
This study focused on the automatic versus controlled nature of the underlying cognitive processes of ERPs （Event-Related Potentials） effects during speech perception. ERPs to the final word of sentences （half bein...This study focused on the automatic versus controlled nature of the underlying cognitive processes of ERPs （Event-Related Potentials） effects during speech perception. ERPs to the final word of sentences （half being semantically incongruent with the sentence and half congruent） were presented to French natives under 4 levels of degradation： no degradation, mild degradation （2 levels）, and strong degradation. Under mild degradation allowing controlled sentence-level processing according to behavioral data, the N400 effect （i.e., the N400 to incongruent words minus the N400 to congruent words） and a late positive complex were delayed and the latter effect was reduced. Under strong degradation allowing only automatic sentence processing according to behavioral data, no ERP effects remained. These results suggest that, unlike contextual effect found with single words （e.g., using word-pair or word-list paradigms）, ERP effects elicited by more complex contexts such as full sentences are generated by controlled but not by automatic mechanisms of speech processing.展开更多
It has been debated whether preference for subject-extracted relative clauses in language processing is a universal rule, with evidence from both first and second language acquisition studies. But very few studies foc...It has been debated whether preference for subject-extracted relative clauses in language processing is a universal rule, with evidence from both first and second language acquisition studies. But very few studies focus on learners of Chinese as a second language. The current research studied Chinese subject/object-extracted relative clauses processing among the learners of Chinese as a second language by a self-paced reading experiment. The results demonstrate a faster and more accurate processing of subject-extracted relative clauses in both subject and object modifying conditions, adding more evidence to the universal preference for the subject-extracted relative clauses. Both Frequency-Based Accounts and Memory-Based Accounts are discussed related to the current findings.展开更多
The interpretation of Chinese relative clauses has become of significant interest in sentence processing research, since some studies found that Chinese comprehension patterns violate the well-known universal subject ...The interpretation of Chinese relative clauses has become of significant interest in sentence processing research, since some studies found that Chinese comprehension patterns violate the well-known universal subject relatives preference proposed by NAPH theory and proved by cross-linguistic studies. The current study uses the neuropsychological measure of ERP. It supports such a language-specific phenomenon, with the results showing that both subject- and object- modifying subject relatives eliciting larger ERP components than object relatives. The results suggest that object relatives are easier to process than subject relatives at both modifying positions, challenging the claim of universal subject preference for all languages. In addition, this study casts doubts on CWO and working memory-based DLT models despite results being compatible with them, and concludes that none of the current models are comprehensive enough to account for the data. Finally, this study offers a piece of evidence for the garden path effect caused by the surface NVN word order in the Chinese relative clause. All in all, this study adds to the evidence that processing preference is not universal. It contributes to a comprehensive model of how complex structures are processed.展开更多
基金the National Natural Science Foundation of China (No.60435020, 60575042 and 60503072).
文摘This paper proposes a new way to improve the performance of dependency parser: subdividing verbs according to their grammatical functions and integrating the information of verb subclasses into lexicalized parsing model. Firstly,the scheme of verb subdivision is described. Secondly,a maximum entropy model is presented to distinguish verb subclasses. Finally,a statistical parser is developed to evaluate the verb subdivision. Experimental results indicate that the use of verb subclasses has a good influence on parsing performance.
文摘This study focused on the automatic versus controlled nature of the underlying cognitive processes of ERPs （Event-Related Potentials） effects during speech perception. ERPs to the final word of sentences （half being semantically incongruent with the sentence and half congruent） were presented to French natives under 4 levels of degradation： no degradation, mild degradation （2 levels）, and strong degradation. Under mild degradation allowing controlled sentence-level processing according to behavioral data, the N400 effect （i.e., the N400 to incongruent words minus the N400 to congruent words） and a late positive complex were delayed and the latter effect was reduced. Under strong degradation allowing only automatic sentence processing according to behavioral data, no ERP effects remained. These results suggest that, unlike contextual effect found with single words （e.g., using word-pair or word-list paradigms）, ERP effects elicited by more complex contexts such as full sentences are generated by controlled but not by automatic mechanisms of speech processing.
基金supported through the National Social Science Foundation of China(13BYY072)
文摘It has been debated whether preference for subject-extracted relative clauses in language processing is a universal rule, with evidence from both first and second language acquisition studies. But very few studies focus on learners of Chinese as a second language. The current research studied Chinese subject/object-extracted relative clauses processing among the learners of Chinese as a second language by a self-paced reading experiment. The results demonstrate a faster and more accurate processing of subject-extracted relative clauses in both subject and object modifying conditions, adding more evidence to the universal preference for the subject-extracted relative clauses. Both Frequency-Based Accounts and Memory-Based Accounts are discussed related to the current findings.
基金the project of"The Processing of Chinese Relative Clauses"at the University of Arizona with No.10-0363-02supported in part by the project of Superiority Subject in Jiangsu Province(20110101)the EGI corporation for its support of this research
文摘The interpretation of Chinese relative clauses has become of significant interest in sentence processing research, since some studies found that Chinese comprehension patterns violate the well-known universal subject relatives preference proposed by NAPH theory and proved by cross-linguistic studies. The current study uses the neuropsychological measure of ERP. It supports such a language-specific phenomenon, with the results showing that both subject- and object- modifying subject relatives eliciting larger ERP components than object relatives. The results suggest that object relatives are easier to process than subject relatives at both modifying positions, challenging the claim of universal subject preference for all languages. In addition, this study casts doubts on CWO and working memory-based DLT models despite results being compatible with them, and concludes that none of the current models are comprehensive enough to account for the data. Finally, this study offers a piece of evidence for the garden path effect caused by the surface NVN word order in the Chinese relative clause. All in all, this study adds to the evidence that processing preference is not universal. It contributes to a comprehensive model of how complex structures are processed.
