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1.
本次研究在P指数基础上，提出了时间——引文分布下学者学术评价Py指数。具体而言，基于文献引文分布，结合文献被引频次阈值、文献被引半衰期阈值，构建时间——引文分布下的论文分区，即普通论文、潜力论文、热门论文、经典论文。根据4种分区论文影响力差异性，按照普通论文、潜力论文、热门论文、经典论文影响力递增原则，设计论文被引频次递增权值，提出Py公式。以CNKI平台2000-2017年图情领域核心论文被引频次前100位作者数据进行实证分析，讨论Py指数表现。结果表明：Py指数能从论文本身的价值与影响去反映学者的学术成就，凸显优质论文相比普通论文所带来的更强的学术肯定意义；Py指数区分度、灵敏度、公平公正性、有效性与科学性方面较H指数、P指数表现更佳。 相似文献
2.
本文基于CSSCI数据库,统计分析近十年我国艺术学科高被引作者、高被引期刊频次,并用h指数评价高被引作者学术观点的影响力。统计数据客观显现我国艺术学科近十年期刊和作者高被引现状,引证分析的结果表明,高被引论文与学术影响力的正比关系。在艺术学这门学科中高被引论文表明学术期刊及论文作者的学术影响力。 相似文献
3.
朱大明 《中国科技期刊研究》2015,26(11):1161-1165
[目的]重视研究论文中引文的学术论证作用,提高引文质量。[方法]根据引文在研究型论文中所起论证作用不同,将其分为关键论证作用与非关键论证作用2大类,进而提出"关键引文"的概念和标注方法。[结果]关键引文是指在论文中所引用的起到关键性学术论证作用并对论文核心内容具有不可或缺意义的参考文献。提出了关键引文的确定方法和标注方法。[结论]正确认识和把握关键引文,对科学著述中参考文献的合理引用、论文审稿以及引文分析都具有参考指导意义,其有利于促进学术交流质量的提高。 相似文献
4.
《Information processing & management》2022,59(4):102996
Although the citation relationships among papers can help in tracking and understanding the development of knowledge, few studies have noted that the content and sentiments of citations of a paper differ. Here, we use sentiment-labeled citation data to construct a directed signed citation network, in which an author may agree with or criticize the cited paper and these represent different ways of inheriting knowledge. The dataset we use consists of 9,038 papers in the field of Computational Linguistics, including 25,275 citations, with 20.8% positive citations, 8.6% negative citations and 70.6% neutral citations. We systematically quantify the structural patterns of negative citations, impact assortativity of involved papers, occurrence time distribution and consequences of receiving negative attention. Remarkably, we find that papers with different impacts have a similar probability of receiving negative citations, and highly cited papers tend to give negative citations to low-impact papers around but avoid giving negative citations to high-impact papers. Our research also reveals the random occurrence rules and colocation patterns of negative citation distribution. In addition, we show that, in the short term, around 60% of multiple negative citations is positively related to the impact of the cited paper while more than 80% are negatively related to the impact in the long run. Our findings explain the pattern by which negative citations occur and deepen the understanding of negative citations. 相似文献
5.
用文献计量学评价基础研究的几项指标探讨--论文、引文和期刊影响因子 总被引：26，自引：2，他引：24
近年来,在基础研究评估的诸多指标体系中,无一例外地引进了文献计量学的方法,其中论文、引文和期刊影响因子又被作为重要指标考虑因子之一。高影响因子的期刊是由于有一定数量的高质量论文支撑的结果,正是这些高质量的论文,才可能产生高水平的期刊,亦即期刊影响因子高。同一学科领域内高水平的期刊一定有多于一般水平期刊的高质量论文。引文是衡量论文影响力的重要因子之一。尽管引文情况复杂,有自引、他引、正引、反引、大段引用,点到而已;并且受学科、期刊数、从事人员多少等影响,也还有创新被认识等问题,但引文的重要性是客观存在的。 相似文献
6.
【目的】 分析医学学报类期刊被中国科学引文数据库（CSCD）引用的情况及特点,为办好医学学报提供思路。【方法】 选择被CSCD和《中文核心期刊要目总览》共同收录的16种医学学报,检索得到16种医学学报2013—2015年发表的论文被CSCD收录期刊引用的施引文献列表,分析施引文献的发表期刊、语种分布、作者机构及研究方向。【结果】 自身施引在该类期刊被CSCD引用中占主导作用,很少有CSCD收录的英文期刊施引该类期刊,本机构作者施引对其被引的贡献较大。施引文献研究方向除内科学、肿瘤学和外科学外,还有一些医学交叉学科。【结论】 医学学报需要继续扩大影响力,特别是对非本机构作者;加大宣传力度提高被引机会;注意重点、交叉学科和科研机构,从而提升质量、稳定发展。 相似文献
7.
《Information processing & management》2022,59(3):102924
The existing credit allocation method of coauthored research paper could not tell the whole story about who did what and the acknowledgment of different parts of the article. When an article is cited, the first author often gets the primary or even full credit, even if the citing paper cites the method part of the article, which is mainly contributed by the second author. This study proposes a context-based author credit (CAC) model to allocate individual credit to coauthors in a multi-authored paper. In the proposed model, coauthor's credit is conceptualized as a directed and weighted connection between citations and contributor roles, where the relationship was decided by citation context. Citation strength was used in the proposed model instead of the number of citing papers which can make the credit of research more precise. The proposed approach can complement existing measures of author credit analysis based on author signature order. In our experiments, the model was validated by fitting to empirical data, a group of highly productive authors’ articles and their citing papers, from PLOS Medicine. The results show that CAC model outperforms prior alternatives such as normal, fractional, harmonic counting and author contribution solely based on contribution list in terms of reflecting the specific performance of coauthors. Besides, the CAC model has a certain sensitivity to the contributions of lower-ranked authors, breaking through the restriction of the author's signature order. This paper also provides the new application of this model in author academic evaluation. 相似文献
8.
为把握全球水下潜器领域的研发前沿、国家布局及其未来研发方向,基于水下潜器领域SCI论文和发明专利数据,采用引文网络和专利地图方法,通过定义引文网络中的高被引论文、高频词、高被引新词以及专利地图中的重要专利、高频概念词等指标,综合专家意见,对水下潜器领域基础研究前沿和技术开发前沿进行识别;同时,基于引文网络中的论文总被引次数和重要专利总被引次数,对比分析主要国家在水下潜器领域的研发布局。结果显示：全球水下潜器领域研发处于活跃状态,其中无人自治式潜水器（AUV）方向一直保持较高的热度,相关研究起步早且发文体量大、增速最快;无人潜器应用研究方面的文献被引用量高、参与单位多、发表期刊水平高;AUV布放回收、通用技术、载荷以及无人遥控潜水器在油气业的应用等方向影响力最大;中国相关研发活跃、产出丰富,但缺乏相关技术的理论研究,产品市场竞争力较弱。 相似文献
9.
高被引论文的特征因素及其对影响因子贡献研究 总被引：4，自引：2，他引：2
张垒 《中国科技期刊研究》2015,26(8):880-885
【目的】分析高被引论文的特征因素及测度其对影响因子的贡献度。【方法】以CSSCI数据库中新闻学与传播学领域高被引论文为研究对象,基于文献内容和外部特征,界定论文被引响应时间、研究内容新颖性和研究主题内容等七个影响论文高被引的特征因素。【结果】 60%以上的高被引论文作者具有较高影响力,高被引论文的平均响应时间不到一年,70%以上的高被引论文研究内容不具有新颖性,TOP 5%高被引论文对影响因子的贡献平均为27.12%。【结论】虽然参考文献数量与论文高被引不具有显著关联性,但高被引论文倾向于引用影响力较高的期刊,而且高被引论文对影响因子的贡献度较大。 相似文献
10.
为系统了解国内机构知识库研究现状与趋势,采用文献计量法、比较分析法等,以CSSCI收录的机构知识库来源文献和被引文献数据为基础,从来源文献、引文情况及被引情况3个角度,对载文情况、引文概况、引文语种、引文类型、作者情况、期刊情况、被引情况、被引成果等多个方面进行统计、分析,并通过对这些文献的阅读、关键词分析和国内外有关研究情况的比较,针对国内机构知识库研究的问题,提出了4项建议。 相似文献
11.
研究前沿是科技创新过程中最具潜力和前瞻性的研究方向,尽早识别研究前沿对科学研究、企业研发资源优化配置、政府创新战略前瞻部署等至关重要。针对目前在研究前沿识别研究中存在的不足,提出一种基于机器学习的研究前沿识别方法。该方法首先通过构建机器学习模型来识别出潜在高被引论文,解决利用引文分析法来识别研究前沿的时滞性问题,并将潜在高被引论文纳入研究前沿识别的高被引论文核心文档集中;其次,以高被引论文核心文档集为数据源,利用聚类分析法识别出研究前沿主题,并对研究前沿主题进行对比和评价分析,进而识别出研究前沿;最后,以太阳能光伏电池研究领域为例进行了实证研究,验证了该方法的可行性和有效性,为研究前沿识别提供了新的研究方法。 相似文献
12.
链接分析是近些年来国内图书情报学和计算机科学界一个共同关注的研究主题。本文以国内2000-2010年链接分析期刊论文的引文为对象,运用统计方法和比较方法对其进行了定量分析。研究发现,图书情报学和计算机科学链接分析的引文在时间分布、引用文献类型、引文语种等方面都存在较大的差异。本文还分析了两个学科领域的高被引作者和高被引文献。 相似文献
13.
《情报科学》2006-2010年高被引论文分析 总被引：1，自引：0，他引：1
以中国知网《中国学术文献网络出版总库》为统计源,从文献引证的角度分析《情报科学》高被引论文的分布规律。研究结果表明:该数据库共收录《情报科学》2006-2010年原文2039篇,被引文献1377篇,被引率为67.53%,总被引频次为7581,单篇最高被引频次81,较少的论文拥有较高的被引频次,基本符合"二八定律"。并且以被引频次≥21的前50篇论文作为研究对象,对其年代分布、被引频次、下载频次等方面进行了统计分析。 相似文献
14.
This paper looks at how citations are perceived among scientists. Based on a questionnaire survey it traces the repertoire of views and experiences about citations that could be found among Norwegian scientists that had published highly cited papers. Their views circle around three issues: the relation between the quality (or importance or significance) of a paper and its citation history; the importance of visibility and how different sorts of factors play a role in determining citation in general and high citation in particular; and the fairness (or lack of fairness) of the system. Taken together, the respondents’ answers and comments offer an informal (and fragmented) sociology of citations and their role in the world of science. In the final section we discuss the relevance of our findings in respect to the increasing use of citation indicators in science policy and research evaluations. 相似文献
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16.
This paper explores the relationship between scientific publication and patenting activity. More specifically, it examines for the field of nano-science and nano-technology whether researchers who both publish and patent are more productive and more highly cited than their peers who concentrate on scholarly publication in communicating their research results. This study is based on an analysis of the nano-science publications and nano-technology patents of a small set of European countries. While only a very few nano-scientists appear to hold patents in nano-technology, many nano-inventors seem to be actively publishing nano-science research. Overall, the patenting scientists appear to outperform their solely publishing (non-inventing) peers in terms of publication counts and citation frequency. However, a closer examination of the highly active and highly cited nano-authors points to a slightly different situation. While still over-represented among the highly cited authors, inventor-authors appear not to be among the most highly cited authors in that category, with a single notable exception. One policy implication is that, generally speaking, patenting activity does not appear to have an adverse impact on the publication and citation performance of researchers. 相似文献
17.
【目的/意义】为更加公正地评价科研团队的影响力,针对当前科研团队评价中对引文分布偏态问题的忽
视,本文提出一种新的科研团队影响力评价指标——科研团队被引均衡性指标（Cited Balance,简称Cb指标）。【方
法/过程】首先,利用社会化网络分析方法（Social Network Analysis,简称SNA）获取10个科研团队及其成员;然后,
在中国引文数据库中分别下载科研团队发表文章的被引信息;最后,利用修正的泰尔指数衡量科研团队文献被引
分布的均衡性,计算科研团队的Cb值。【结果/结论】实证研究发现,新指标Cb能够综合考虑团队的发文量、被引频
次和文献被引的均衡性,对科研团队影响力评价更加全面、公正。【创新/局限】被引均衡性Cb指标为科研团队影响
力评价提供了一种新方法,但未来仍需对该指标做进一步的检验。 相似文献
18.
中国知网收录的科技管理学(G31)文献为28,516条文献,居学科前1‰高被引论文阈值为78次,平均引文周期为13年,其中绩效评价是一个重要的研究领域。前1‰高被引论文第一作者高级职称占53%,研究生和中级职称人员占47%。H指数在10以上有12人,占作者总数的52%。作者发表年龄在39岁以下的占74%。居学科前1%高被引论文阈值为31次,位列前三名的高产机构分别是浙江大学、清华大学和华南理工大学。 相似文献
19.
Martin Meyer 《Research Policy》2006,35(10):1646-1662
This paper explores the relationship between scientific publication and patenting activity. More specifically, it examines for the field of nano-science and nano-technology whether researchers who both publish and patent are more productive and more highly cited than their peers who concentrate on scholarly publication in communicating their research results. This study is based on an analysis of the nano-science publications and nano-technology patents of a small set of European countries. While only a very few nano-scientists appear to hold patents in nano-technology, many nano-inventors seem to be actively publishing nano-science research. Overall, the patenting scientists appear to outperform their solely publishing (non-inventing) peers in terms of publication counts and citation frequency. However, a closer examination of the highly active and highly cited nano-authors points to a slightly different situation. While still over-represented among the highly cited authors, inventor-authors appear not to be among the most highly cited authors in that category, with a single notable exception. One policy implication is that, generally speaking, patenting activity does not appear to have an adverse impact on the publication and citation performance of researchers. 相似文献
20.
[目的/意义]对比分析相同主题的不同类型科学文献的使用行为，利用用户学术行为数据全面测评学术论文影响力。[方法/过程]基于Web of Science数据库中学术论文使用次数，分析比较不同学科文献的使用差异。从文献使用入手，收集2013-2017年3D打印领域的论文数据，以化学、工程文献为对比分析对象，从论文的学科视角分析使用次数与被引频次之间的相关性，分析高使用与高引用（Top 10%）论文的重合文献，探测文献使用差异，并进行独立样本T检验。[结果/结论]U1与被引次数成微弱正相关，U2与被引次数显著性相关；两学科的科学论文在使用上存在统计学意义上的显著差异，可能原因是不同学科学者的文献使用行为不同。此外，文献类型对使用次数有影响，综述类文献信息量较为丰富，从而可以获得更多的使用、引用。 相似文献