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Zengru Di
Beijing Normal University
116Publications
20H-index
1,370Citations
Publications 116
Newest
Published in Nature Communications11.88
An Zeng17
Estimated H-index: 17
(BNU: Beijing Normal University),
Zhesi Shen6
Estimated H-index: 6
(CAS: Chinese Academy of Sciences)
+ -3 AuthorsShlomo Havlin98
Estimated H-index: 98
(BIU: Bar-Ilan University)
Despite persistent efforts in understanding the creativity of scientists over different career stages, little is known about the underlying dynamics of research topic switching that drives innovation. Here, we analyze the publication records of individual scientists, aiming to quantify their topic switching dynamics and its influence. We find that the co-citing network of papers of a scientist exhibits a clear community structure where each major community represents a research topic. Our analys...
Published on May 30, 2019in Scientometrics2.77
Yanmeng Xing (BNU: Beijing Normal University), An Zeng17
Estimated H-index: 17
(BNU: Beijing Normal University)
+ 1 AuthorsZengru Di20
Estimated H-index: 20
(BNU: Beijing Normal University)
Survivability is one of the features for success in contemporary science ecosystem. In this paper, we analyze the publication records of physicists in American Physical Society journals, aiming to identify the career length of each researcher and accordingly investigate the dropout phenomenon in science by the example of physicists. We find that scientific career is a complex nonlinear evolution process and can be generally divided into four stages regarding the dropout rate. In the early career...
Published on May 24, 2019in Scientometrics2.77
Yanan Wang , An Zeng17
Estimated H-index: 17
+ 1 AuthorsZengru Di20
Estimated H-index: 20
Ranking the significance of scientific publications has been a challenging topic for a long time. So far, many ranking methods have been proposed, one of which is the well-known PageRank algorithm. In this paper, we introduce aging characteristics to the PageRank algorithm via considering only the first 10 year citations when aggregating resource from different nodes. The validation of our new method is performed on the data of American Physical Society journals. The results indicate that taking...
Published on Jul 1, 2019in Physica A-statistical Mechanics and Its Applications2.50
Lingbo Li1
Estimated H-index: 1
(BNU: Beijing Normal University),
Ying Fan16
Estimated H-index: 16
(BNU: Beijing Normal University)
+ 1 AuthorsZengru Di20
Estimated H-index: 20
(BNU: Beijing Normal University)
Abstract The evolution dynamics of public opinion is a hot issue in complex networks research. And the Ising model is the earliest classic dynamic model of public opinion. Although signed networks can describe amicable and antagonistic relationship in complex real-world systems accurately, and the research on dynamic process of public opinion evolution on signed networks is valuable, few people have paid attention to that. Previous methods for opinion diffusion cannot be applied to signed networ...
Published on Jun 1, 2019in Scientometrics2.77
Fenghua Wang , Ying Fan16
Estimated H-index: 16
+ 1 AuthorsZengru Di20
Estimated H-index: 20
Collaboration among researchers plays an important role in scientific discoveries, especially in multidisciplinary research. How to allocate credit reasonably to coauthors of a paper is a long-standing problem in the science of sciences. The collective credit allocation method (CCA method) proposed by Shen, H. W. and Barabasi, A. L. provides a novel view to solve this problem, which measures the coauthors’ contribution to a paper based on the citation process by the scientific community. Neverth...
Published on Feb 1, 2019in Scientometrics2.77
Zhesi Shen6
Estimated H-index: 6
(CAS: Chinese Academy of Sciences),
Zhesi Shen2
Estimated H-index: 2
(CAS: Chinese Academy of Sciences)
+ 1 AuthorsJinshan Wu11
Estimated H-index: 11
(BNU: Beijing Normal University)
Often we need to compare two sets of data, say X and Y, and often via comparing their means \(\mu _{X}\) and \(\mu _{Y}\). However, when two sets are highly overlapped (say for example \(\sqrt{\sigma ^{2}_{X}+\sigma ^{2}_{Y}}\gg \left| \mu _{X}-\mu _{Y}\right|\)), ranking the two sets according to their means might not be reliable. Based on the observation that replacing the one-by-one comparison, where we take one sample from each set at a time and compare the two samples, with the \(K_{X}\)-by...
Published on Jan 1, 2019in Scientometrics2.77
Fenghua Wang (BNU: Beijing Normal University), Ying Fan16
Estimated H-index: 16
(BNU: Beijing Normal University)
+ 1 AuthorsZengru Di20
Estimated H-index: 20
(BNU: Beijing Normal University)
The highly cited papers defined by Clarivate Analytics’ Essential Science Indicators (ESI) have been widely used to measure the scientific performance of scientists, research institutions, universities and countries. However, researchers have seldom studied which factors can affect a paper to be an ESI highly cited paper. The prediction of ESI highly cited papers is much less studied, too. According to the existing researches about factors influencing paper’s citations, four classical papers’ fa...
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