本文将英语专业本科毕业论文中的文献综述部分作为实证研究对象,在Swalesian学派的语步–语阶分析模式指导下,研究探讨英语专业本科生文献综述写作中存在的框架结构。研究发现,本科生文献综述各语步–语阶均有较合理的使用情况,但受到...本文将英语专业本科毕业论文中的文献综述部分作为实证研究对象,在Swalesian学派的语步–语阶分析模式指导下,研究探讨英语专业本科生文献综述写作中存在的框架结构。研究发现,本科生文献综述各语步–语阶均有较合理的使用情况,但受到毕业论文篇幅和学术素养所限,在某些方面仍有不足之处。本文针对研究发现提出相应的教学、写作建议,从而为本科生英语学术写作教与学提供一定参考。Based on Swalesian school’s move analysis model, this paper takes the literature review section of undergraduate English majors theses as the empirical research object, to explore the schematic structure that exists in their writing of literature reviews. Findings show that undergraduate literature reviews have reasonable usage of various moves and steps, but due to limitations in the length of graduation theses and students’ academic literacy, there are still shortcomings in certain aspects. This paper proposes corresponding teaching and writing suggestions so as to provide reference for undergraduate English academic writing teaching and learning.展开更多
作为学术论文的开篇,引言具有引导读者进入正文的作用。本研究以学术英语研究国际期刊Journal of English for Academic Purposes(JEAP)为研究对象,选取该期刊自创刊以来(2002—2019年)共36篇学术论文的引言自建语料库,对其语步–语阶...作为学术论文的开篇,引言具有引导读者进入正文的作用。本研究以学术英语研究国际期刊Journal of English for Academic Purposes(JEAP)为研究对象,选取该期刊自创刊以来(2002—2019年)共36篇学术论文的引言自建语料库,对其语步–语阶结构进行历时分析。结果表明,从历时来看,引言部分多采用顺序结构,语步结构比较完整。具体而言,M1语步中语阶使用较为完整,M2语步"指出差距"语阶使用频率最高,M3语步中使用最多的语阶为概述研究目的和介绍当前研究状况。本研究可为学术论文引言的撰写提供参考,如在引言撰写中要关注引言的结构分布,以提高学术论文在国际期刊发表的机率。展开更多
This paper described an approach to make inferences on Chinese information using first order predicate logic, which could be used in the semantic query of Chinese. The predicates of the method were derived from the na...This paper described an approach to make inferences on Chinese information using first order predicate logic, which could be used in the semantic query of Chinese. The predicates of the method were derived from the natural language using rule based LFT, the axiom set was generated by extracting lexicon knowledge from HowNet, and the first order predicate inferences were made through symbol connection of center words. After all these were done, the evaluation and possible improvements of the method were provided. The experiment result shows a higher precision rate than that traditional methods can reach.展开更多
To capture the presence of speech embedded in nonspeech events and background noise in shortwave non-cooperative communication, an algorithm for speech-stream detection in noisy environments is presented based on Empi...To capture the presence of speech embedded in nonspeech events and background noise in shortwave non-cooperative communication, an algorithm for speech-stream detection in noisy environments is presented based on Empirical Mode Decomposition （EMD） and statistical properties of higher-order cumulants of speech signals. With the EMD, the noise signals can be decomposed into different numbers of IMFs. Then, the fourth-order cumulant （ FOC ） can be used to extract the desired feature of statistical properties for IMF components. Since the higher-order eumulants are blind for Gaussian signals, the proposed method is especially effective regarding the problem of speech-stream detection, where the speech signal is distorted by Gaussian noise. With the self-adaptive decomposition by EMD, the proposed method can also work well for non-Gaussian noise. The experiments show that the proposed algorithm can suppress different noise types with different SNRs, and the algorithm is robust in real signal tests.展开更多
文摘本文将英语专业本科毕业论文中的文献综述部分作为实证研究对象,在Swalesian学派的语步–语阶分析模式指导下,研究探讨英语专业本科生文献综述写作中存在的框架结构。研究发现,本科生文献综述各语步–语阶均有较合理的使用情况,但受到毕业论文篇幅和学术素养所限,在某些方面仍有不足之处。本文针对研究发现提出相应的教学、写作建议,从而为本科生英语学术写作教与学提供一定参考。Based on Swalesian school’s move analysis model, this paper takes the literature review section of undergraduate English majors theses as the empirical research object, to explore the schematic structure that exists in their writing of literature reviews. Findings show that undergraduate literature reviews have reasonable usage of various moves and steps, but due to limitations in the length of graduation theses and students’ academic literacy, there are still shortcomings in certain aspects. This paper proposes corresponding teaching and writing suggestions so as to provide reference for undergraduate English academic writing teaching and learning.
文摘作为学术论文的开篇,引言具有引导读者进入正文的作用。本研究以学术英语研究国际期刊Journal of English for Academic Purposes(JEAP)为研究对象,选取该期刊自创刊以来(2002—2019年)共36篇学术论文的引言自建语料库,对其语步–语阶结构进行历时分析。结果表明,从历时来看,引言部分多采用顺序结构,语步结构比较完整。具体而言,M1语步中语阶使用较为完整,M2语步"指出差距"语阶使用频率最高,M3语步中使用最多的语阶为概述研究目的和介绍当前研究状况。本研究可为学术论文引言的撰写提供参考,如在引言撰写中要关注引言的结构分布,以提高学术论文在国际期刊发表的机率。
文摘This paper described an approach to make inferences on Chinese information using first order predicate logic, which could be used in the semantic query of Chinese. The predicates of the method were derived from the natural language using rule based LFT, the axiom set was generated by extracting lexicon knowledge from HowNet, and the first order predicate inferences were made through symbol connection of center words. After all these were done, the evaluation and possible improvements of the method were provided. The experiment result shows a higher precision rate than that traditional methods can reach.
基金Sponsored by the National Natural Science Foundation of China(Grant No.60475016)the Foundational Research Fund of Harbin Engineering University (Grant No.HEUF04092)
文摘To capture the presence of speech embedded in nonspeech events and background noise in shortwave non-cooperative communication, an algorithm for speech-stream detection in noisy environments is presented based on Empirical Mode Decomposition （EMD） and statistical properties of higher-order cumulants of speech signals. With the EMD, the noise signals can be decomposed into different numbers of IMFs. Then, the fourth-order cumulant （ FOC ） can be used to extract the desired feature of statistical properties for IMF components. Since the higher-order eumulants are blind for Gaussian signals, the proposed method is especially effective regarding the problem of speech-stream detection, where the speech signal is distorted by Gaussian noise. With the self-adaptive decomposition by EMD, the proposed method can also work well for non-Gaussian noise. The experiments show that the proposed algorithm can suppress different noise types with different SNRs, and the algorithm is robust in real signal tests.
