Build It and They Will Come? Patron Engagement Via Twitter at Historically Black College and University Libraries     

Brenton Stewart  Jessie Walker 《The Journal of Academic Librarianship》2018,44(1):118-124

This study is a social media analysis on the use of Twitter at Historically Black Colleges and University (HBCU) libraries. While information science researchers have begun examining how libraries use social media, the vast majority of these studies are situated at large flagship research-intensive universities. Additionally, there currently exist deficiencies in research on social media deployment at HBCU libraries. We leverage, the IBM Watson's analytic engine, to systemically examine over 23,000, tweets over an eighteen-month period, around a set of objective measures including propagation of retweets and sentiment to assess follower engagement. The analysis found little evidence of follower engagement with library generated content. However, we observed a substantial volume of library tweets coalesced around institutional boosterism, rather than library related phenomena. This non-library related content represented the vast majority of retweets, but paradoxically was propagated by non-followers. Additionally, tweets relating to institutional boosterism produced the most positive sentiment within the data.  相似文献   

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   

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   

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   

情孽的人性探索——浅析《孽子》的思想文化意蕴     

刘剑平 《喀什师范学院学报》2007,28(1):76-79

《孽子》是白先勇的惟一一部长篇小说,展现了在莲花池边的男性同性恋王国中生活的一群被家庭放逐被社会抛弃的野性少年的心路历程;同时掀开他们狂放患纵的表象,露出的是一块块被侮辱被蹂躏的浓血进流的疮疤,反映了以父权为代表的中国社会对同性恋的态度．表达了对人性尊严的呼唤与探索。论文就试图从“灵与肉”“父与子”“情与孽”这三方面人手,浅析台湾作家白先勇的长篇小说《孽子》的思想文化意蕴。  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   

Social media opinion summarization using emotion cognition and convolutional neural networks     

《International Journal of Information Management》2020

Quickly and accurately summarizing representative opinions is a key step for assessing microblog sentiments. The Ortony-Clore-Collins (OCC) model of emotion can offer a rule-based emotion export mechanism. In this paper, we propose an OCC model and a Convolutional Neural Network (CNN) based opinion summarization method for Chinese microblogging systems. We test the proposed method using real world microblog data. We then compare the accuracy of manual sentiment annotation to the accuracy using our OCC-based sentiment classification rule library. Experimental results from analyzing three real-world microblog datasets demonstrate the efficacy of our proposed method. Our study highlights the potential of combining emotion cognition with deep learning in sentiment analysis of social media data.  相似文献   

论情绪情感在学校体育教学中的作用   总被引：3，自引：0，他引：3  

杨建雄 《浙江体育科学》1997,(3)

本文运用心理学中关于情绪、情感的理论，阐述了情绪、情感在学校体育教学中的作用，并提出了一些建议。  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