Google Scholar Beta检索性能的初步分析   总被引：6，自引：1，他引：6  

朱佳鸣 《图书情报工作》2005,49(12):115-119

利用多个医学提问，通过对Google Scholar Beta、PubMed、ISI Science Citation Index Expanded、CrossRef Search、Scirus等工具检索结果的对比，分析 Google Scholar Beta 测试版搜索引擎在学术信息检索中的性能表现，特别是检索的查全率、结果的相关性、文献被引用检索等方面的性能，指出其存在的不足，并对该搜索引擎对图书馆跨库查询方案的影响进行初步探讨。  相似文献   

The Effect of Web Search Result Display on Users’ Perceptual Experience and Information Seeking Performance     

Hosam Al-Samarraie  Ahmed Isam Al-Hatem 《The Reference Librarian》2018,59(1):10-18

ABSTRACT

Adding multiple sources of information in the display of Web search results may negatively affect users’ perceptual experience and information-seeking behavior. This claim was established by investigating the impact of different Web search compositions on users’ ability to extract specific information. In this article, we assumed that the quantity and order of different compositions (areas) in the Web search results page may contribute to individual’s ability to find information relevant to their search queries. An eye-tracking device was used to observe and compare the perceptual behavior of 14 users in an information-seeking task. The results showed that the use of different compositions in the display of Web results page significantly influenced users’ perceptual experience by reducing their attention to the organic results area. The quantity of these compositions was found to greatly increase the cognitive load of users when attempting to retrieve information from the organic area, which negatively affects their information-seeking performance. Our finding provides a rationale for further studies to consider the impact of quantity and order of Web page compositions on individuals’ perceptual attention and cognitive load in information-seeking task settings.  相似文献   

Making Video News Visible: Identifying the Optimization Strategies of the Cybermedia on YouTube Using Web Metrics     

Carlos Lopezosa  Enrique Orduna-Malea  Mario Pérez-Montoro 《Journalism Practice》2020,14(4):465-482

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论英汉文学翻译中的语言美--兼议英汉翻译语体风格的转换     

肖宜宁  刘恺 《九江职业技术学院学报》2003,(4):60-61

本立足于翻译的标准和原则，结合笔的翻译实践，从语体角度阐述英汉翻译中的语言美现象。  相似文献   

用“远程学习圈理论”分析网络学习管理系统   总被引：4，自引：0，他引：4  

菅光宾  孙淑艳 《现代教育技术》2005,15(1):28-32,36

LMS 是网络教育和基于网络培训的支撑系统。本文首先介绍了两种对LMS 进行功能分类和评价的理论,然后通过借鉴“远程学习圈理论”提出对LMS 进行功能分析的框架,最后利用这个框架对三个知名的LMS 进行分析,旨在为 企业和学校引进LMS 时提供参考和借鉴。  相似文献   

Tweeting Facts,Facebooking Lives: The Influence of Language Use and Modality on Online Source Credibility     

Gamze Yilmaz  Jessie M. Quintero Johnson 《Communication Research Reports》2016,33(2):137-144

The present study examines how language use (e.g., personalized vs. depersonalized language) and modality (e.g., tweets vs. Facebook status updates) influence source credibility interdependently. A total of 257 participants read personalized or depersonalized health messages embedded in mock-up tweets or Facebook status updates. The results show that users perceive depersonalized tweets as more credible than depersonalized status updates posted on Facebook. On the other hand, personalized status updates on Facebook generate higher credibility judgments than personalized tweets. The findings are discussed in light of the MAIN model as well as the preconceived user expectations and communication norms of social media.  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   

利用搜索引擎在Internet 上进行信息检索 --Google使用方法和性能评价     

寿玉清 《台州学院学报》2002,24(3):19-22

讨论了在Internet上进行信息检索的一般方法,详细地介绍了搜索引擎Google在信息检索领域的作用和网页搜索、图像搜索、新闻组搜索、主题目录的使用方法,分析归纳了它的逻辑运算能力,以及其他几种杰出的特殊功能,最后对它的性能进行了初步的评价。  相似文献   

对外国经典译著的编辑思考     

贺树 《出版科学》2016,24(2):32-35

把高质量的译本奉献给读者,是从事外国经典译著编辑的终极目标。在编辑外国经典译著时一定要忠于原文,与译者交朋友,勤查各类工具书,重视读者意见,注意自身素质的提高,关注各类翻译赛事以发现和培养优秀译者。  相似文献   

太阳能空间斯特林热机性能的优化分析   总被引：1，自引：0，他引：1  

林比宏 《泉州师范学院学报》2002,20(4):17-21

建立太阳能驱动的空间斯特林热机的循环模型，应用有限时间热力学理论和太阳能集热器的辐射损失模型，研究受热阻和回热损失影响的太阳能斯特林热机循环性能，导出空间热机效率的基本优化关系，确定太阳能集热器的最佳工作温度和效率界限，讨论各种不可逆性对空间热机性能的影响，所得结论可为太阳能空间斯特林热机的优化设计提供新的理论指导。  相似文献