融合语料库特征与图注意力网络的短文本分类方法

短文本分类是自然语言处理(NLP)中的重要研究问题,广泛应用于新闻分类、情感分析、评论分析等领域。针对短文本分类中存在的数据稀疏性问题,通过引入语料库的节点和边权值特征,基于图注意力网络(GAT),提出了一个融合节点和边权值特征的图注意力网络NE-GAT。首先,针对每个语料库构建异构图,利用引力模型(GM)评估单词节点的重要性,并通过节点间的点互信息(PMI)获得边权重;其次,为每个句子构建文本级别图,并将节点重要性和边权重融入节点更新过程。实验结果表明,所提模型在测试集上的平均准确率达到了75.48%,优于用于文本分类的图卷积网络(Text-GCN)、TL-GNN、Text-ING等模型;相较原始GAT,所提模型的平均准确率提升了2.32个百分点,验证了其有效性。

基于语料库的中西方致股东信文本特征对比研究

致股东信是为了吸引更多投资者,实现企业利益的重要手段。研究选取中西方致股东信为研究语料,自建语料库,对比分析了中西方致股东信在词汇、句法、语篇层面的文本特征及差异。研究发现,1) 中西方致股东信的平均词长、词汇密度、情态系统存在差异,中国致股东信平均词长略低于西方,但词汇密度更加丰富。与西方致股东信相比,中国致股东信更多使用中值情态,过少使用高值和低值情态词;2) 中西方致股东信的平均句长和定语从句存在差异,中国致股东信的平均句长大于西方,但定语从句的使用率低于西方;3) 中国致股东信的语篇可读性低于西方,更难阅读。本研究对中国企业致股东信的书写有启示作用,能提高中国企业吸引海外投资的竞争力和吸引力。

中国大学生英语口语词汇特征研究

本研究运用中介语对比分析法,对比COLSEC和BNC两个口语语料库中的词汇及词项特征。结果表明:与本族语者相比,中国非英语专业学生的英语口语在许多方面存在显著差异,尤其在话语标记词、情态词、表明确评价的形容词、某些交互词、非词汇化动词、模糊词及模棱两可话语词等方面使用不足;而在高频动词、助动词及常见形容词等方面则存在过度使用现象。该研究有助于我们更好地进行口语教学并对口语词典编纂和口语教材的编写具有一定价值。

Language Style Reflected by Tourist English Hypertext

Corpus-based linguistic approach is one of the most used text studies. Nowadays, stylistic analysis has been adopted to shed new light on tourism English. The topic is to apply the language theory--the stylistic analysis to the tourist text analysis, to discover the style essence of Tourist English Hypertext. The stylistic features include graphological analysis of Tourist English Hypertext, lexical features in hypertext, syntactical analysis of Tourist English Hypertext. It summarizes online Tourist English Hypertext information with some typical samples, with the methods of examples and analysis. It aims to offer an in-depth insight into the stylistic features of online tourism English texts, helping people to grasp the key points of the online information when they are browsing the information on the Internet. So this paper both enlarges the application of the stylistic analysis and presents summary for online tourist information.

A Stylistic Analysis of Hemingway＇s News and Fiction Writing

Literature about Hemingway＇s writing style has been fully explored in the past 80 years, while his style has not yet been well probed into from the perspective of corpus-based stylistics. This paper focuses on the analysis of his writing style as a news reporter and as a literary writer in order to investigate whether there exists some links between the two or whether his training as a reporter has any effect on his writing as fiction writer. By employing a corpus-based stylistic approach, the paper analyzes in great details Hemingway＇s early news writing in Kansas City Star （ 1917-1918） and his later fiction writing in the novella The Old Man and the Sea （1952）. The stylistic features at lexical level are explored quantitatively in both writings via statistical data. The paper concludes that Hemingway＇s writing style has his own heritage. The style in his early news articles does find its way into his later fiction writing. There do exist certain similarities in the choices of lexical items and phrasal expressions. It also indicates that a further exploration on their syntactic, rhetorical, and discourse levels is needed ira fuller picture of Hemingway＇s writing style is to be unveiled.