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1.
网络计量学研究:现状、问题与发展   总被引:17,自引:3,他引:14  
结合我们对网络搜索引擎的研究实践,从网络计量学研究现状、它的实际应用、存在的问题以及发展走向等进行初步的探讨。  相似文献   

2.
对于文献计量学发展中若干问题的认识与思考   总被引:2,自引:0,他引:2  
近年来,文献计量学研究相当活跃.出现了信息计量学、情报计量学、网络计量学等分支学科,产生了不同的研究流派。作者在对相关文献研究的基础上,对文献计量学发展中的一些问题进行了思考(包括文献计量学概念的再认识、文献计量学测度指标的分析、文献计量学应用分析等),对目前文献计量学的局限性和未来发展趋势做了总结。  相似文献   

3.
网络计量学:互联网上的文献计量学   总被引:27,自引:0,他引:27  
网络计量学是文献计量学的拓展。这篇论文介绍了网络计量学在互联网上信息分析与测量的标准方法。论述利用Web开发技术,在网上进行计量设计、计量测量的可行性。  相似文献   

4.
今年是“网络信息计量学”(Webometrics,或译为“网络计量学”)诞生10周年。1997年,丹麦学者T.C阿曼德(T.C.Almind)等人在《万维网上的信息计量分析:网络信息计量学的方法探讨》一文中,首次提出了Webometrics这一术语,并认为“信息计量学的各种方法完全可以用于万维网上的信息计量分析”。  相似文献   

5.
随着互联网的普及,越来越多的信息来源于网络。本文介绍了网络信息计量学的兴起及其研究对象、研究方法、研究工具,并探讨了它的应用。  相似文献   

6.
链接分析法存在的问题及改进方法   总被引:20,自引:1,他引:19  
链接分析法是引文分析在网络环境下的产物,但它遇到了不当问题。本文尝试分析这些问题,并提出了解决方案。  相似文献   

7.
网络计量学基本问题研究   总被引:1,自引:0,他引:1  
"网络信息计量学"一词存在着多种定义,这些解释随学科的发展而不断变化。网络信息计量学是信息计量学的分支学科,也是一门交叉性的边缘应用性学科。"网络文献"所具有的三个层次的信息分别是:物理载体层次、元数据层次和信息单元层次。网络文献与传统文献具有相当大的相似性,传统文献计量研究方法可以运用于网络信息计量学的研究中。  相似文献   

8.
近五年来网络计量学研究的文献数量与内容分析   总被引:5,自引:0,他引:5  
本文通过对ISI Web of Science数据库收录的近五年国内外关于网络计量学研究文献的统计,从文献数量、期刊分布、作者发文量、研究机构、区域分布、文献主题分布以及文献类型等角度进行了分析,并对当前网络计量学研究中尚需解决的问题进行了说明。  相似文献   

9.
近年来,文献计量学研究相当活跃,出现了信息计量学、情报计量学、网络计量学等分支学科,产生了不同的研究流派。作者在对相关文献研究的基础上,对文献计量学发展中的一些问题进行了思考(包括文献计量学概念的再认识、文献计量学测度指标的分析、文献计量学应用分析等),对目前文献计量学的局限性和未来发展趋势做了总结。  相似文献   

10.
网络环境下用户查寻行为的计量研究   总被引:4,自引:0,他引:4  
简述网络环境下用户的各类查寻行为,如用户查寻的次数、用户查寻词的数量、用户翻看查寻结果情况、布尔检索式的使用以及修改初始查寻式等方面的计量研究。在此基础上深入分析不同用户查寻行为的研究模式、方法及其应用。同时,对未来用户查寻行为计量研究的发展趋势进行探讨。  相似文献   

11.
One can hardly be considered knowledgeable of uses and gratifications theory without being familiar with the work of Alan M. Rubin. His advancement of our knowledge about the centrality of the individual in the media uses and effects relationship has inspired numerous scholars to add to the body of knowledge guided by uses and gratifications research. The breadth of Rubin's work in this regard is extraordinary, but his devotion to clarifying central concepts of uses and gratifications in his audience-centered research should also be recognized. Rubin's pioneering studies in uses and gratifications remain as benchmarks for scholars seeking to understand electronic media and how engaged audiences relate to media content.  相似文献   

12.
The purpose of this study is to explore humor as a factor in students’ perceptions of college teacher compliance‐gaining in the classroom. Four hundred twenty‐eight college students reported the frequency of their college teachers’ uses of compliance‐gaining tactics, the frequency of humor uses with compliance‐gaining tactics, and the effectiveness of humor used with compliance‐gaining tactics. Results revealed positive and significant relationships between humor uses and uses of particular compliance‐gaining strategies. Findings suggest that students perceive teachers to use humor more frequently with certain compliance‐gaining tactics. Moreover, students reported that certain compliance‐gaining tactics are perceived as more effective than others.  相似文献   

13.
《Communication monographs》2012,79(3):274-288
Despite the potential of the uses and gratifications paradigm to explain the etiology of media uses and effects, most research to date has ignored the issue of etiology and has focused on creating motivation typologies. Recent advances in bio-behavioral research provide a new way to address the question of etiology. A survey of 285 adults showed that the biologically rooted individual difference behavior variable of temperament was a consistent and moderately strong causal factor in forming television use motivations. Distinct patterns of relationships between temperament and all television use gratifications were found, supporting the uses and gratifications paradigm. Particularly potent predictors of television use motivations were negative mood, low task orientation, and behavioral rigidity. These results point out the importance of future bio-behavioral etiological media uses and effects research.  相似文献   

14.
This study investigates English-speaking media’s legitimation of smartphone uses by Syrian refugees to explore how “otherness” is negotiated through technologies. Qualitatively examining the media coverage of the Syrian refugees’ use of smartphones between early 2015 and early 2017, we identified rhetorical devices and narrative strategies. The findings indicated a gradual shift in mediated legitimation strategies. In this process, two major themes emerged: (1) strategies to legitimate uses of technology and (2) demystifying refugees. The first theme identified that media articles focused on refugees’ instrumental uses of smartphones over the emotional uses as a legitimation strategy, utilizing metaphors and referencing third parties. The second theme showed media coverage further debunked conflation over poverty and precarity while negotiating otherness. Over time, the media coverage started to fall into the “humanitarian imaginary” of refugees by keeping them at the margins as people who need aid, largely limiting their legitimated mobile phone use to pragmatic uses. The findings contribute to understanding how media coverage can shape the way people make sense of the refugee population at a moment in time of technological appropriation amid ongoing political crises.  相似文献   

15.
Links among demographics, motivation for using the Internet, cognitive and affective involvement, and Internet dependency were investigated. By integrating uses and gratifications theory and media dependency research, motivation was found to play a more important antecedent role in explaining Internet dependency than demographics, and cognitive and affective involvement mediated the relationship between motivation and Internet dependency. This finding supported the uses and gratifications argument that certain factors intervene in the media uses and effects process between motivation to communicate and outcomes of communication behavior such as media use.  相似文献   

16.
《Communication monographs》2012,79(4):317-334
The purpose of this study was to test the argument that perceptions and uses of mobile phones are socially constructed in close personal networks. The study hypothesized that, through collective sense making, perceptions and uses of mobile phones would be more similar within 45 personal communication networks than for the entire sample of 194 individuals. Findings from a self-report survey reveal that several factors were significantly more similar within the networks than for individuals throughout the sample, including perceptions of the handset as a means of display, use for safety and security, attitudes about use in public, microcoordination, hypercoordination, and comfort with technology. Interviews were conducted to explore how perceptions and uses were shaped through relationships and interactions situated in social context. The interview data illuminate how social interaction contributed to perceptions and uses in four key areas: mobile phone adoption, attitudes about products and services, perceptions of non-normative use, and collective use. Results of the study serve as evidence supporting the argument that perceptions and uses of communication technologies are, at least in part, constructed socially among close personal contacts. This study demonstrates why it is important for researchers to consider social contacts and social contexts when examining the implications of communication technologies.  相似文献   

17.
RFID is an acronym that stands for the radio frequency identification. RFID uses wireless radio communications for unique identification of people or assets. This article explains the technology, how RFID tags work, and, more important, their various uses in libraries.  相似文献   

18.
从文本特征对文本分类结果的整体影响的角度出发,提出一种基于粒子群优化的文本特征选择方法(PSOTFS),使用粒子群算法来挖掘文本特征选择规则。PSOTFS首先使用开方检验对文本特征进行预选择,然后使用粒子群算法对预选择得到的文本特征进行精选。PSOTFS以一个粒子表示一条特征选择规则,特征选择规则集对应某个粒子群,采用分类准确率作为适应度函数,采用分组的方式对粒子的维度进行降维。实验结果表明,PSOTFS比开方检验、信息增益、文档频率和互信息方法能得到更好的分类效果。  相似文献   

19.
The serials and circulation phases of the data-processing system in use at the University of New Mexico Library of the Medical Sciences are described. The development of the programs is also reported. The serials program uses simple punched card equipment. The circulation program uses the IBM 357 Data Collection System and punched card data-processing equipment.  相似文献   

20.
With a plethora of news outlets today, audiences have more choices than ever. Yet, academic and professional understanding of news audiences from a uses and gratifications perspective remains limited. Using a national survey (N = 1143), this study uncovers distinct news consumption patterns across 4 types of motivations, and predicts media uses across 30 sources with noticeably higher explanatory power as compared to previous uses and gratifications studies, answering the question: Who is using what type of news, and why?  相似文献   

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