首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   123篇
  免费   1篇
  国内免费   16篇
教育   18篇
科学研究   38篇
各国文化   2篇
综合类   1篇
信息传播   81篇
  2023年   3篇
  2022年   1篇
  2021年   5篇
  2020年   4篇
  2019年   12篇
  2018年   12篇
  2017年   3篇
  2016年   4篇
  2015年   3篇
  2014年   17篇
  2013年   12篇
  2012年   13篇
  2011年   20篇
  2010年   11篇
  2009年   3篇
  2008年   3篇
  2007年   3篇
  2006年   1篇
  2005年   3篇
  2004年   1篇
  2003年   2篇
  2002年   1篇
  2001年   1篇
  2000年   2篇
排序方式: 共有140条查询结果,搜索用时 15 毫秒
131.
选取了SCI和CSSCI收录的图书情报领域对专利研究的期刊论文,从文献数量上分析出文献发表量有增加的趋势;通过高频关键词、共现关键词及关键词的主题聚类分析,研究了图书情报领域学者在SCI与CSSCI来源期刊上发表的有关专利研究论文的合作特征与主题分布。  相似文献   
132.
在构建终身教育体系进程中,终身教育与远程教育的关联性及其相互影响,是一项值得研究的重要课题。以"终身教育-远程教育"为研究主题,采用文献计量法等研究方法,通过剖析这一关联主题的研究状况,得出以下结论:研究"终身教育-远程教育"主题的论文数量呈逐年上升趋势;终身教育和远程教育之间存在两种关系,即"整体与部分"和"目的与路径"关系;与此相对应,远程教育在终身教育体系中扮演两类角色,即"教育形态(或教育方式)"和"教育手段"角色。在当今网络环境支撑的知识时代,远程教育在构建终身教育体系中将发挥越来越重要的作用。  相似文献   
133.
获得国家自然科学基金资助立项和产出ESI论文情况属于数据层面的表象,其内因则是学科优势的发展。本文对华南农业大学NSFC项目资助、ESI论文产出数量及质量、ESI学科分布等进行多角度的文献计量分析,从数据外部特征及内容特征入手,剖析华南农业大学存在的问题和不足,最后提出学校仍需从强化学科优势方向、注重科技创新人才发展、实施任务目标管理等几个方面推动国家自然科学基金立项资助及相关科研论文的产出,提升内在能动力,进而推进推进双一流学科和高水平大学建设。  相似文献   
134.
Information retrieval involves finding some desired information in a store of information or a database. In this paper, Co-word analysis will be used to achieve a ranking of a selected sample of FA terms. Based on this ranking a better arranging of search results can be achieved. Experimental results achieved using 41 MB of data (7660 documents) in the field of sports. The corpus was collected from CNN newspaper, sports field. This corpus was chosen to be distributed over 11 sub-fields of the field sports from the experimental results, the average precision increased by 18.3% after applying the proposed arranging scheme depending on the absolute frequency to count the terms weights, and the average precision increased by 17.2% after applying the proposed arranging scheme depending on a formula based on “TF∗IDF” to count the terms weights.  相似文献   
135.
论文运用文献计量学的方法,通过对1998-2007年的国外图像检索研究论文的核心作者及国别、论文时间分布、核心期刊、合著率和舍著度以及跨国合著、关键词和主题的调查,分析了图像检索研究的整体发展情况和发展趋势.并指出研究中存在的问题。  相似文献   
136.
The purpose of this study was to examine the relationship between publication rate, top journal publications and excellence during the first eight years of the career, and how well publication rate, top journal publications and highly cited publications during the first four years of the career can predict whether an author attain excellence in the fifth to the eighth year. The dataset consisted of publication track records of 406 early career mathematicians in the sub-field of number theory collected from the MathSciNet database. Logistic regression and dominance analysis was applied to the data. The major conclusions were (1) publication rate had a positive effect on excellence during the first eighth years of the career. However, those who publish many articles in top journals, which implicitly require a high publication count, had an even higher probability of attaining excellence. These results suggest that publishing in top journals is very important in the process of attaining excellence in the early career in addition to publishing many papers; and (2) a dominance analysis indicated that the number of top journal publications and highly cited publications during the first four years of the career were the most important predictors of who will attain excellence in the later career. The results are discussed in relation to indicator development and science policy.  相似文献   
137.
The purpose of the present study is to analyse and map the trends in research on prion diseases by applying bibliometric tools to the scientific literature published between 1973 and 2002. The data for the study were obtained from the Medline database. The aim is to determine the volume of scientific output in the above period, the countries involved and the trends in the subject matters addressed. Significant growth is observed in scientific production since 1991 and particularly in the period 1996–2001. The countries found to have the highest output are the United States, the United Kingdom, Japan, France and Germany. The collaboration networks established by scientists are also analysed in this study, as well as the evolution in the subject matters addressed in the papers they published, that are observed to remain essentially constant in the three sub-periods into which the study is divided.  相似文献   
138.
文献计量法与内容分析法的比较研究   总被引:28,自引:2,他引:28  
陈维军 《情报科学》2001,19(8):884-886
同为定理研究方法,文献计量法和内容分析法在研究对象,方法论基础,应用范围等方面有很多不同。本文试对二者作一比较研究。  相似文献   
139.
机构知识库是促进学术交流和知识创新的重要形式,论文对CNKI所收录的259条有效记录进行文献计量分析,对关键词进行标准化处理后将所有文献进行主题划分和归类,从版权协议与政策规范,数据标准与系统平台,组织结构与模式模型以及指标体系与评估评价等四大主题对IR的研究文献进行归纳总结,并提出几点现实问题。  相似文献   
140.
This is the first systematic literature review concerning the interconnections between big data (BD) and co-innovation. It uses BD as a common perspective of analysis as well as a concept aggregating different research streams (open innovation, co-creation and collaborative innovation). The review is based on the results of a bibliographic coupling analysis performed with 51 peer-reviewed papers published before the end of 2019. Three thematic clusters were discovered, which respectively focused on BD as a knowledge creation enabler within co-innovation contexts, BD as a driver of co-innovation processes based on customer engagement, and the impact of BD on co-innovation within service ecosystems. The paper theoretically argues that the use of BD, in addition to enhancing intentional and direct collaborative innovation processes, allows the development of passive and unintentional co-innovation that can be implemented through indirect relationships between the collaborative actors. This study also makes eleven unique research propositions concerning further theoretical developments and managerial implementations in the field of BD-driven co-innovation.  相似文献   
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号