Using LSA and text segmentation to improve automatic Chinese dialogue text summarization     

LIU Chuan-han WANG Yong-cheng ZHENG Fei LIU De-rong 《浙江大学学报(A卷英文版)》2007,8(1):79-87

Automatic Chinese text summarization for dialogue style is a relatively new research area. In this paper, Latent Semantic Analysis （LSA） is first used to extract semantic knowledge from a given document, all question paragraphs are identified, an automatic text segmentation approach analogous to Text＇filing is exploited to improve the precision of correlating question paragraphs and answer paragraphs, and finally some ＂important＂ sentences are extracted from the generic content and the question-answer pairs to generate a complete summary. Experimental results showed that our approach is highly efficient and improves significantly the coherence of the summary while not compromising informativeness.  相似文献   

Using Political Journalists’ Definitions of Public Opinion to Predict Source Use in Political News     

Jennifer Hoewe 《Communication Research Reports》2016,33(3):247-252

This study examined political journalists’ definitions of public opinion and how these definitions influence the structure of political news stories. After considering prior conceptualizations of public opinion, a scale of two distinct definitions of public opinion was created, consisting of the optimist’s and the pessimist’s definitions. Using a survey of political journalists in the United States, these public opinion definitions were significant predictors of the use of particular sources in political news stories. Importantly, the two definitions had opposite influences on the use of opinion polls, shedding light on the discrepancy in use and perception of poll results in political news.  相似文献   

论章太炎的新闻思想     

王丽娜  周列 《湖北广播电视大学学报》2007,27(6):83-84

章太炎是近代著名报人,他的新闻思想深植于中国传统文化,同时融合西方报刊理论,提出很多独到的见解,如,利用报刊舆论,立足新闻事实,提出独立见解,中西合璧,提倡新闻自由,对当时的报界产生了巨大影响,推动了社会革命舆论的形成和发展,从而对当时社会进步起到巨大影响。  相似文献   

Joint rate control and scheduling for wireless uplink video streaming     

KATSAGGELOS Aggelos K. 《浙江大学学报(A卷英文版)》2006,7(5):801-810

INTRODUCTION Video streaming is becoming one of the major driving forces of next generation wireless networks. For the currently deployed cellular networks, the practical data rates are not enough to support full rate, high quality video applications. As a result, many research efforts have been devoted to adapting video content to reconcile the conflict between the high demand of video quality and the limited wireless communication resources among users. A large body of literature utiliz…  相似文献   

舆论:从非理性走向理性     

文九 《培训与研究》2006,23(3):34-35

本文首先梳理了人类传播史上几种主要的对待舆论的态度,进而指出,在当今社会转型时期,应该弘扬理性的魅力,逐渐引导舆论从非理性走向理性,从而为建构一个良性社会环境而努力。  相似文献   

Abstractive headline generation using WIDL-expressions     

R. Soricut  D. Marcu 《Information processing & management》2007,43(6):1536

We present a new paradigm for the automatic creation of document headlines that is based on direct transformation of relevant textual information into well-formed textual output. Starting from an input document, we automatically create compact representations of weighted finite sets of strings, called WIDL-expressions, which encode the most important topics in the document. A generic natural language generation engine performs the headline generation task, driven by both statistical knowledge encapsulated in WIDL-expressions (representing topic biases induced by the input document) and statistical knowledge encapsulated in language models (representing biases induced by the target language). Our evaluation shows similar performance in quality with a state-of-the-art, extractive approach to headline generation, and significant improvements in quality over previously proposed solutions to abstractive headline generation.  相似文献   

面向查询的观点摘要模型研究:以Debatepedia为数据源     

余传明  郑智梁  朱星宇  安璐 《情报学报》2020,39(4):374-386

本文系统性地研究面向查询的观点摘要任务,旨在构建一种查询式观点摘要模型框架,探究不同的摘要方法对摘要效果的影响。通过综合考虑情感倾向与句子相似度,从待检文档中抽取出待摘要语句,再结合神经网络和词嵌入技术生成摘要,进而构建面向查询的观点摘要框架。从Debatepedia网站上爬取议题和论述内容构建观点摘要实验数据集,将本文方法应用到该数据集上,以检验不同模型的效果。实验结果表明,在该数据集上,仅使用基于抽取式的方法生成的观点摘要质量更高,取得了最高的平均ROUGE分数、深度语义相似度分数和情感分数,较生成式方法分别提高6.58%、1.79%和11.52%,而比组合式方法提高了8.33%、2.80%和13.86%;同时,本文提出的句子深度语义相似度和情感分数评估指标有助于更好地评估面向查询的观点摘要模型效果。研究结果对于提升面向查询的观点摘要效果,促进观点摘要模型在情报学领域的应用具有重要意义。  相似文献   

“公意”与“舆论”之间:五四时期李普曼《舆论》的知识传播和话语实践     

陈友良 《新闻界》2020,(4):76-84

基于新发现的袁昌英《公意之源》,并与陶孟和的书评比较,考察李普曼《舆论》作为一种现代性话语在中国的传播与实践的问题。《舆论》推动了近代西方"public opinion"从哲学论述转向现代性的知识和概念,但其核心概念仍融合了"公共意志"与"公众意见"两方面涵义,作为现代性话语尚具有两歧性。这个特征为五四时期的中国学者提供了"舆论"与"公意"的两条阐释路径。陶孟和用书评形式引介《舆论》,关注其在政治心理学上的创新意义;袁昌英则以近似于政论文的形式,评述李普曼的新舆论观、大众媒介观和政治传播观,实已触及现代传播学的范畴。陶、袁都被李普曼的民主理论修正观点所吸引,对于著名的"李普曼-杜威之辩",也有精英主义与大众主义不同的评论视角。从话语实践上看,《舆论》参与了一战以后中国知识界对西方民主制度的反省思潮。  相似文献   

刘熙载《艺概》研究史综述     

束舒娅  徐倩 《江西教育学院学报》2011,32(2):150-156

刘熙载《艺概》研究史以时间维度为经,大致可分为五个时期;而以学界研究的不同视角为纬,又可见出各时期研究的侧重点、主导价值观和成就所在。《艺概》研究史主要成就在上世纪80年代以后20年。综合《艺概》研究不同时期的特点,不仅为《艺概》研究的进一步深入提供历史借鉴,也将引导接下来的刘熙载《艺概》研究。  相似文献   

青少年网络成瘾现象研究综述     

鲁正宏 《鸡西大学学报》2011,11(4):47-48

从青少年网络成瘾的界定、测量评估标准、相关风险因素研究、治疗和干预手段等方面进行综述,意对网络成瘾现象的相关研究提供参考。  相似文献