Compared with the traditional method of adding sentences to get summary in multi-document summarization,a two-stage sentence selection approach based on deleting sentences in acandidate sentence set to generate summar...Compared with the traditional method of adding sentences to get summary in multi-document summarization,a two-stage sentence selection approach based on deleting sentences in acandidate sentence set to generate summary is proposed,which has two stages,the acquisition of acandidate sentence set and the optimum selection of sentence.At the first stage,the candidate sentenceset is obtained by redundancy-based sentence selection approach.At the second stage,optimum se-lection of sentences is proposed to delete sentences in the candidate sentence set according to itscontribution to the whole set until getting the appointed summary length.With a test corpus,theROUGE value of summaries gotten by the proposed approach proves its validity,compared with thetraditional method of sentence selection.The influence of the token chosen in the two-stage sentenceselection approach on the quality of the generated summaries is analyzed.展开更多
Although, researchers in the ATC field have done a wide range of work based on SVM, almost all existing approaches utilize an empirical model of selection algorithms. Their attempts to model automatic selection in pra...Although, researchers in the ATC field have done a wide range of work based on SVM, almost all existing approaches utilize an empirical model of selection algorithms. Their attempts to model automatic selection in practical, large-scale, text classification systems have been limited. In this paper, we propose a new model selection algorithm that utilizes the DDAG learning architecture. This architecture derives a new large-scale text classifier with very good performance. Experimental results show that the proposed algorithm has good efficiency and the necessary generalization capability while handling large-scale multi-class text classification tasks.展开更多
Up to now there still lacks relevant study on what role participating in English public speaking contests plays in cultivating students＇ English public speaking ability and the instruction of this course. The ＂CCTV ...Up to now there still lacks relevant study on what role participating in English public speaking contests plays in cultivating students＇ English public speaking ability and the instruction of this course. The ＂CCTV CUP＂ English public speaking contest1 is one of the most important contests of this field. Despite a few studies on the ＂CCTV CUP＂ in the literature, none of them has focused on the contestants＇ perspective. This paper first attempts to describe the ＂CCTV CUP＂ English public speaking contest from the perspective of sociocultural theory and social realism. Then it takes 7 final contestants＇ ＂reactions to participating in the contest＂ for analysis, focusing on what impacts participating in this contest brought on them. The results show that participating in the ＂CCTV CUP＂ English public speaking contest not only deepened the contestants＇ understandings about English public speaking, but brought significant harvests at ability training, and the increase of life experience and wisdom. At last, it gives relevant suggestions on the instruction of English public speaking course.展开更多
The paper regards young adult literature (YAL) as a dissolved-point between localization and globalization of English teaching, and discusses (1) whether the western YAL teaching theories, methods and teaching materia...The paper regards young adult literature (YAL) as a dissolved-point between localization and globalization of English teaching, and discusses (1) whether the western YAL teaching theories, methods and teaching materials accord with Chinese actual situation well or not, (2) if YAL reading is an effective way for creating life-long readers, and (3) why and how to teach YAL. Based on YAL learning and teaching practice, the author uses Soter's YAL theories and alternative approaches, try to clarify three relationships: YA-YAL; adult literature-YAL-children's literature; classics-YAL balance. And put forward three ways for books selection and three reading patterns to YAL teaching.展开更多
基金the National Natural Science Foundation of China(No.60575041)the High Technology Researchand Development Program of China(No.2006AA01Z150).
文摘Compared with the traditional method of adding sentences to get summary in multi-document summarization,a two-stage sentence selection approach based on deleting sentences in acandidate sentence set to generate summary is proposed,which has two stages,the acquisition of acandidate sentence set and the optimum selection of sentence.At the first stage,the candidate sentenceset is obtained by redundancy-based sentence selection approach.At the second stage,optimum se-lection of sentences is proposed to delete sentences in the candidate sentence set according to itscontribution to the whole set until getting the appointed summary length.With a test corpus,theROUGE value of summaries gotten by the proposed approach proves its validity,compared with thetraditional method of sentence selection.The influence of the token chosen in the two-stage sentenceselection approach on the quality of the generated summaries is analyzed.
文摘Although, researchers in the ATC field have done a wide range of work based on SVM, almost all existing approaches utilize an empirical model of selection algorithms. Their attempts to model automatic selection in practical, large-scale, text classification systems have been limited. In this paper, we propose a new model selection algorithm that utilizes the DDAG learning architecture. This architecture derives a new large-scale text classifier with very good performance. Experimental results show that the proposed algorithm has good efficiency and the necessary generalization capability while handling large-scale multi-class text classification tasks.
文摘Up to now there still lacks relevant study on what role participating in English public speaking contests plays in cultivating students＇ English public speaking ability and the instruction of this course. The ＂CCTV CUP＂ English public speaking contest1 is one of the most important contests of this field. Despite a few studies on the ＂CCTV CUP＂ in the literature, none of them has focused on the contestants＇ perspective. This paper first attempts to describe the ＂CCTV CUP＂ English public speaking contest from the perspective of sociocultural theory and social realism. Then it takes 7 final contestants＇ ＂reactions to participating in the contest＂ for analysis, focusing on what impacts participating in this contest brought on them. The results show that participating in the ＂CCTV CUP＂ English public speaking contest not only deepened the contestants＇ understandings about English public speaking, but brought significant harvests at ability training, and the increase of life experience and wisdom. At last, it gives relevant suggestions on the instruction of English public speaking course.
文摘The paper regards young adult literature (YAL) as a dissolved-point between localization and globalization of English teaching, and discusses (1) whether the western YAL teaching theories, methods and teaching materials accord with Chinese actual situation well or not, (2) if YAL reading is an effective way for creating life-long readers, and (3) why and how to teach YAL. Based on YAL learning and teaching practice, the author uses Soter's YAL theories and alternative approaches, try to clarify three relationships: YA-YAL; adult literature-YAL-children's literature; classics-YAL balance. And put forward three ways for books selection and three reading patterns to YAL teaching.
