浅析英语语音音变对听力理解的影响

针对英语教学过程中影响听力理解的语音音变问题，章分析了语音音变现象，如音的浊化、音的同化、音的不完全爆破、音的连读等等，并提出了有效可行的解决途径，帮助英语学习更好地掌握语言的交汇功能。     

Development of adolescent reading comprehension in language 1 and language 2: A longitudinal analysis of constituent components.

This study investigated the relationship between reading comprehension development of 389 adolescents in their dominant language (Language 1 [L1], Dutch) and a foreign language (Language 2 [L2], English). In each consecutive year from Grades 8 through 10, a number of measurements were taken. Students' reading comprehension, their linguistic knowledge (vocabulary and grammar knowledge) and processing efficiency (speed of word recognition and sentence comprehension) in both languages, and their metacognitive knowledge about reading were assessed. The relative strengths of the effects of these components of reading were analyzed to distinguish among 3 hypotheses about the relationship between L1 and L2 reading comprehension: the transfer hypothesis, the threshold hypothesis, and the processing efficiency hypothesis. The transfer hypothesis predicts a strong relationship between L1 and L2 reading comprehension and a strong effect of metacognitive knowledge on L2 reading comprehension, whereas the threshold and processing efficiency hypotheses predict a more important role of language-specific knowledge and processing skills. Results support the transfer hypothesis, although language-specific knowledge and fluency also contribute to L2 reading performance. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

支持向量机算法在MOOC 课程答疑系统中的研究

随着互联网技术和近期MOOC课程的发展,智能答疑系统也受到了更多的关注,应用它能够及时给学生提供学生疑惑的问题答案。智能答疑系统通常包括问句理解、信息检索、答案抽取和选择三个主要部分,且问句分类是问句理解的关键,因为它的准确性将直接影响到最后答案的准确性。以高校计算机基础课程为实际背景,在已有基于支持向量机算法基础上,对该方法进行了改进,并通过训练集和测试集进行了验证。从实验结果看,该方法在高校计算机基础智能答疑系统中有比较好的应用效果。     

全民阅读与读者服务的研究

借鉴国内外图书馆阅读推广与全民阅读的理论与实践经验,系统研究国家图书馆学的理论体系,运用案例调查、图书馆学的原理和方法,立足于江西省区域图书馆服务于居民阅读的实际现状,结合国家和东部地区的有益经验政策,构建一种新型的图书馆创新服务体系以及图书馆信息化建设与评估的机制。     

代码搜索方法研究进展

开源软件的成功推动了软件产业的蓬勃发展,大量代码资源为代码搜索创造了条件.如何通过代码搜索技术找到需求代码成为一个重要问题.为了更好地推进后续研究工作,首先对代码搜索相关概念及研究趋势进行介绍和说明;其次对使用不同技术的代码搜索研究工作进行综述,包括基于信息检索、查询和代码描述增强、程序特征分类以及深度学习等方面,并进一步总结归纳不同方法的优缺点;接下来针对代码搜索技术所应用的多个领域进行介绍,包括程序合成、代码推荐与补全和代码风格改善等方面;最后分析现阶段代码搜索面临的主要问题,为未来该方向的发展提供一定的参考与建议.     

The segmented presentation of visually structured texts: Effects on text comprehension

The effects of a segmented presentation applied to a visually structured text were examined in the context of the explosion of small-screen devices. Empirical research investigating the influence of text signaling on text processing suggests that the text visual structure may influence comprehension by facilitating the construction of a coherent text representation. Undergraduate students were asked to read a text under different segmented conditions varying on the type of information provided about the text visual structure and on the segmentation unit. When the segmented presentation did not supply any information or when it only offered local information about the text visual structure, text comprehension depended on the segmentation unit. When the segmentation unit did not fit the text visual structure, an erroneous text representation was constructed, whereas the compatible segmentation unit led to a correct text comprehension. When the segmented presentation rendered the global text visual structure, the segmentation unit had no effect on comprehension and more readers constructed a correct and close text representation. Thus, the text visual structure seems to play a role in text comprehension and this role has to be taken into account for text segmented presentation.     

基于实例的隐喻理解与生成

语言中的明喻可以看作是带标记的隐喻,比较容易识别,为隐喻的理解和生成提供了很好的知识源.利用web搜索引擎大规模获取明喻实例,自动构建明喻知识库.基于明喻知识库,考察了汉语隐喻的源域分布情况;提出了一个基于实例的隐喻自动理解和生成方法.实验结果表明,隐喻的理解和生成均取得了较高的准确率.该方法具有很好的可扩展性.明喻知识库中所表达的概念之间的组合关系也可以用于其他多种自然语言处理任务.     

基于双重信息检索的Bash代码注释生成方法

Bash是Linux默认的shell命令语言.它在Linux系统的开发和维护中起到重要作用.对不熟悉Bash语言的开发人员来说,理解Bash代码的目的和功能具有一定的挑战性.针对Bash代码注释自动生成问题提出了一种基于双重信息检索的方法 ExplainBash.该方法基于语义相似度和词法相似度进行双重检索,从而生成高质量代码注释.其中,语义相似度基于CodeBERT和BERT-whitening操作训练出代码语义表示,并基于欧式距离来实现;词法相似度基于代码词元构成的集合,并基于编辑距离来实现.以NL2Bash研究中共享的语料库为基础,进一步合并NLC2CMD竞赛共享的数据以构造高质量语料库.随后,选择了来自代码注释自动生成领域的9种基准方法,这些基准方法覆盖了基于信息检索的方法和基于深度学习的方法.实证研究和人本研究的结果验证了ExplainBash方法的有效性.然后设计了消融实验,对ExplainBash方法内设定(例如检索策略、BERT-whitening操作等)的合理性进行了分析.最后,基于所提方法开发出一个浏览器插件,以方便用户对Bash代码的理解.     

Web应用日志分析系统分析与设计

互联网的蓬勃发展为生活、学习、工作提供了诸多便利,但随之而来的网络安全隐患日趋明显.应用日志分析作为一种重要的信息安全保障措施,有效地弥补了传统安全防御技术的缺陷.主要分析了传统日志分析的常用方法,并在此基础上,提出了一种新的日志读取方法和模式匹配算法.通过测试表明,这些改进对提高日志的分析效率起到了积极效果.     

Reading electronic books as a support for vocabulary,story comprehension and word reading in kindergarten and first grade

The effect of reading an electronic storybook (e-book) on Israeli children’s language and literacy was examined in kindergarten children (N = 40; age 5:2–6:3) compared to first graders (N = 50; age 6:3–7:4). The children in each age group were randomly assigned to two groups: an intervention group which read the e-book five times and a control group which was afforded the regular school program. Pre- and post-tests included vocabulary and word reading measures. Post-tests included story comprehension and production. Children who read the e-book exhibited significant progress in word meaning and word reading compared to the control group. Kindergarten children progressed in word reading more significantly than first graders across treatment groups. This could be explained by the ceiling effect of the first graders’ word reading level which did not leave much room for progress in this skill compared to the kindergarten children. No interaction was found between age and treatment groups. Kindergarten children exhibited a good level of story comprehension, similar to first graders, although their story production was lower. Implications for future research and education are discussed.