共查询到19条相似文献，搜索用时 359 毫秒
1.
应用网络信息计量指标测定我国图书情报学核心网站的实证研究 总被引：1，自引：0，他引：1
以国内7大类共275个图书情报学网站为研究样本,依据"相关网页数量"、"总入链数"、"网络影响因子"等定量指标,采用布拉德福定律方法、百分比补偿法和网络影响因子方法等信息计量方法,对我国图书情报学科的核心网站进行测定,并对不同方法所得的结果进行分析和讨论。实证研究的结果表明,网络影响因子等网络信息计量指标完全可以应用到网络信息资源评价当中。 相似文献
2.
以浙江省内排名靠前的20所大学图书馆网站为研究对象,通过搜索工具Google和socscibot网络爬虫软件得到相关网站的链接指标,采用主成分分析法、网络计量方法和社会网络分析法对这些指标数据进行分析,对浙江省大学图书馆网站的规模,影响,被认可度,互链情况,综合实力等进行评价。 相似文献
3.
网络信息计量学研究(Ⅴ)--链接分析在大学评价中的应用研究 总被引：4，自引：2，他引：4
本研究以链接分析为基础,对大学网站的利用情况和网络影响力在大学评价中的作用进行了探索,结果发现:①院校排名与链接到网站的页面数不具有线性相关关系,但与Web-IF具有一定的线性相关关系,这表明网站规模对研究结果具有实质性影响;②衡量网站链接特征的各项指标与院校排名没有线性相关关系;③分析结果表明,网络目前在提高院校科研绩效和学术影响力,促进其发展方面所起作用还极为有限,有待大力开发以提高其功能和效益。 相似文献
4.
我国省级公共图书馆网络影响力评价研究 总被引：3，自引：0，他引：3
图书馆网络影响力评价指标体系包括网站规模、网站流量、网站被链接量、网络用户关注度、网站利用率5个评价指标。通过灰色关联分析方法对我国29所省级公共图书馆进行网络影响力评价研究发现,省级公共图书馆的网络影响力较低,应加强图书馆网站的宣传和推广力度。 相似文献
5.
网络信息计量学实证研究:对国内20个大学网站的分析 总被引：18，自引：3，他引：15
从中国大陆20所大学网站的总链接数、站外链接数、教育网站外链接数入手,比较总网络影响因子、外部网络影响因子、总科研网络影响因子、科研网络影响因子、教育网影响因子的效用,并对站外链接数、教育网站外链接数与我国较有影响的两所大学排名的相关关系进行测度。 相似文献
6.
中美大学网站评价的比较研究 总被引：4，自引：1，他引：4
基于揭示网站规模、链接特征和影响力三个方面的21项指标,对中美财经和商学院网站作对比研究,发现其中的15项指标有明显差异。表明中国财经院校网站信息含量、信息组织的科学性及网站影响力等方面低于美国同类院校网站。通过分析,可以为网站评价指标体系的建立奠定基础。表4。参考文献11。 相似文献
7.
采用网络信息计量学方法,对山西省8所高校网站进行了链接分析。验证了网站流量同外链数及网页数之间的显著相关性,解析了山西高校网络空间内部链接的特征与问题,得出了一些结论。 相似文献
8.
中美两国医院网站网络影响力指标对比评测研究 总被引：5，自引：0，他引：5
朱雷 《现代图书情报技术》2006,1(3):64-67
采用两种传统的网络影响因子：总网络影响因子（WIFt）、外部网络影响因子（WIFe）以及三种改进后的网络影响因子：门诊量网络影响因子（WIFo）、医务人员网络影响因子（WIFd）、病床数网络影响因子（WIFb）对中、美两国部分综合实力排名靠前的医院网站的网络影响力进行测度和分析，通过WIF值及各种统计学方法判断医院网站在网络空间中影响力的大小是否与医院实力排名存在相关，并根据研究结果探讨网络影响因子是否能作为评判医院类型网站在网络空间影响力大小的指标。 相似文献
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10.
国内外链接分类研究综述 总被引：1，自引：0，他引：1
入链数、网络影响因子(WIF)、Pagerank算法等链接指标是国内外链接分析研究的热点,主要用于网页/网站的重要性评价.这些链接指标都有一个共同的假设前提--链接代表认可、推荐.然而多种统计表明,符合这一假设前提的链接不超过链接总数的30%,这便引起了国内外对链接分类的广泛研究.本文根据近年国内外的相关文献.综述了链接分类的研究现状,并提出研究中的不足之处与发展方向. 相似文献
11.
This article explores disciplinary differences in academic Web-site interlinking using the university departments of chemistry, psychology, and history. Research has suggested that Web-link counts are related to research productivity and geographic distance between source and target, but no previous Webometric studies have comparatively analyzed academic departments from different disciplines. This study shows large differences in Web use by discipline for both Web-site size and the extent of interlinking, with the history department making little use of the Web and the chemistry department the most. There are significant correlations between in-links and research impact for the psychology and chemistry departments, with a stronger association for the psychology department. There was little evidence, however, of a geographic trend in interlinking. 相似文献
12.
本文旨在了解中美两国医学研究者科研信息行为的基本状况,通过在线问卷调查工具分别调查了531名中国医学研究者和533名美国医学研究者,针对与科研信息行为相关的信息获取、信息资源、信息素养、信息利用习惯和对图书馆服务的评价等因素进行调查,分析对比中美两国医学研究者在科研信息行为的特征和异同点。以期医学图书馆能够有针对性地对研究者提供科研信息服务,促进医学科研发展。 相似文献
13.
对美国图书馆学会认可的图书情报学院和中国主要的图书情报学院开设元数据课程的情况进行了调研,分析了该课程开设的基本情况、课程内容、阅读材料、课程实习等信息,通过中美对比,提出了我国元数据课程教学的建议。 相似文献
14.
[目的/意义]作为新媒体的代表之一,微博在国内外图书馆中的应用已成为普遍趋势。然而,相关研究大多关注微博在图书馆应用的现状与策略,对国内外图书馆应用微博的特点与不同之处鲜有探讨。通过对中美两国高校图书馆运用微博的现状进行分析,比较两者的异同,为我国更好地应用微博提供参考和借鉴。[方法/过程]以中美两国各10所高校图书馆的微博为样本,从微博的基本情况（包括微博的粉丝数、发文数及发文频率、原创微博的吸引力、与用户的互动）、微博的形式、微博的内容等方面进行分析比较。[结果/结论]发现美国高校图书馆推特与中国高校图书馆微博的粉丝数量相对持平;美国高校图书馆推特的发文数、发文频率及原创微博的发文数、被点赞数和被转发数都高于中国图书馆,但其原创微博的被评论数低于中国;美国高校图书馆更加重视与用户的互动,更加注重与其他社交应用的联动以及注重对馆员的宣传推介;而中国高校图书馆的微博内容更加详细。 相似文献
15.
护理学术期刊作者群地区分布及其素质分析 总被引：2，自引：0，他引：2
为了解护理期刊作者群的地区分布及不同单位作者的素质，运用数理统计方法对《中华护理杂志》《实用护理杂志》《护士进修杂志》《护理学杂志》和《山西护理杂志》第5种护理期刊1994－1998年刊发论文第一作者所在医院的规模及所属进行了统计，并对1998年5种护理期刊不同地区分布第一作者论文类型、利用文献能力及统计学能力进行了统计。结果显示：护理期刊作者群地区分布不均，医学院校、军队医院作者论文刊用率较高，省市级居第3位，基层医院论文刊用率较低，且医学院校、军队医院作者利用文献及统计学能力较高。医学院校、军队、省市级护理人员为护理期刊的主要作者群。 相似文献
16.
Language barriers and bibliographic retrieval effectiveness: use of MEDLINE by French-speaking end users. 总被引：1，自引：0，他引：1
E Mouillet 《Bulletin of the Medical Library Association》1999,87(4):451-455
OBJECTIVE: A study was conducted to determine if bibliographic retrieval performed by French-speaking end users is impaired by English language interfaces. The American database MEDLINE on CD-ROM was used as a model. METHODS: A survey of self-administered questionnaires was performed at two libraries of Victor Segalen Bordeaux 2 University, during a two-month period in 1997. Three study groups were constituted: MEDLINE / Ovid end users, MEDLINE / Ovid librarian-mediated users, and Pascal, a French bibliographic database, end users. RESULTS: Among 191 respondents, only 22% thought English was an obstacle to their bibliographic retrieval. However, the research software was generally underused and the quality of the retrieval weak. The differences were statistically significant between users trained by librarians and the self-trained group, the former performing better. CONCLUSION: Special efforts need to be made to develop curriculum training programs for computerized bibliographic retrieval in medical schools, regardless of the native language of the student. 相似文献
17.
Problem-based medical education: effect on library use. 总被引：1，自引：0，他引：1
J A Rankin 《Bulletin of the Medical Library Association》1992,80(1):36-43
Problem-based learning (PBL) is being adopted by U.S. medical schools. Information-seeking skills are central to the PBL curriculum, which emphasizes self-directed learning and the acquisition of problem-solving and lifelong learning skills. The purpose of this study is to begin exploring the relationship between the PBL curriculum and student information and library use. Medical students in PBL and conventional medical school curricula were compared on library and information-seeking competencies, behaviors, and perceptions. A survey was sent to second-year students in four medical schools, two schools with two curricular tracks (one PBL and one conventional), one PBL school, and one conventional school. The results showed certain significant differences (P less than 0.05) between PBL and conventional curriculum students, suggesting that PBL students were the more frequent library users, used information resources that supported the independent learning process, acquired information-seeking skills at an earlier stage in their medical education, and reported greater ease in using these skills. 相似文献
18.
盛丽娜 《中华医学图书馆杂志》2014,(8):23-26
对MEDLINE数据库收录的中文生物医学相关期刊的来源指标进行了分析,并与期刊所在学科的各指标的平均值作了对比。结果发现,MEDLINE收录的中文医学期刊文献量不大,平均每刊刊载约260篇,每篇论文平均有5个作者、17条参考文献,文献的引用半衰期为6.175年。MEDLINE收录的中文医学期刊并不侧重海外论文的发表,似乎能吸引更多的基金论文。 相似文献
19.
Dean Hendrix 《Journal of the Medical Library Association》2008,96(4):324-334
Objective:
The objective of this study was to analyze bibliometric data from ISI, National Institutes of Health (NIH)–funding data, and faculty size information for Association of American Medical Colleges (AAMC) member schools during 1997 to 2007 to assess research productivity and impact.Methods:
This study gathered and synthesized 10 metrics for almost all AAMC medical schools (n = 123): (1) total number of published articles per medical school, (2) total number of citations to published articles per medical school, (3) average number of citations per article, (4) institutional impact indices, (5) institutional percentages of articles with zero citations, (6) annual average number of faculty per medical school, (7) total amount of NIH funding per medical school, (8) average amount of NIH grant money awarded per faculty member, (9) average number of articles per faculty member, and (10) average number of citations per faculty member. Using principal components analysis, the author calculated the relationships between measures, if they existed.Results:
Principal components analysis revealed 3 major clusters of variables that accounted for 91% of the total variance: (1) institutional research productivity, (2) research influence or impact, and (3) individual faculty research productivity. Depending on the variables in each cluster, medical school research may be appropriately evaluated in a more nuanced way. Significant correlations exist between extracted factors, indicating an interrelatedness of all variables. Total NIH funding may relate more strongly to the quality of the research than the quantity of the research. The elimination of medical schools with outliers in 1 or more indicators (n = 20) altered the analysis considerably.Conclusions:
Though popular, ordinal rankings cannot adequately describe the multidimensional nature of a medical school''s research productivity and impact. This study provides statistics that can be used in conjunction with other sound methodologies to provide a more authentic view of a medical school''s research. The large variance of the collected data suggests that refining bibliometric data by discipline, peer groups, or journal information may provide a more precise assessment.Highlights
- Principal components analysis discovered three clusters of variables: (1) institutional research productivity, (2) research influence or impact, and (3) individual faculty research productivity.
- The associations between size-independent measures (e.g., average number of citations/article) were more significant than associations between size-independent bibliometric measures and size-dependent (e.g., number of faculty) bibliometric measures and vice versa, except in the case of total National Institutes of Health (NIH) funding.
- The factor coefficients, or loadings, for total NIH funding may associate more with the quality of research rather than the quantity of research.
- The removal of twenty outliers, fourteen highly productive or influential medical schools and six medical schools with relatively low research profiles, changed the results of the analysis significantly.
- This study''s broad institutional bibliometric data sets cannot be extrapolated to specific departments at the studied medical schools.
Implications
- Librarians, administrators, and faculty should use several methodologies in tandem with bibliometric data when evaluating institutions'' research impact and productivity.
- Health sciences librarians should not make use of university rankings materials lacking strong methodological foundations.
- This study''s bibliometric data may provide a starting point or point of comparison for future assessments.