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相关论文: What does Hirsch index evolution explain us? A cas…

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The advancement of science as outlined by Popper and Kuhn is largely qualitative, but with bibliometric data it is possible and desirable to develop a quantitative picture of scientific progress. Furthermore it is also important to allocate…

物理与社会 · 物理学 2019-12-06 Wenyuan Liu , Stanisław Saganowski , Przemysław Kazienko , Siew Ann Cheong

Articles in high-impact journals are, on average, more frequently cited. But are they cited more often because those articles are somehow more "citable"? Or are they cited more often simply because they are published in a high-impact…

数字图书馆 · 计算机科学 2021-03-29 V. A. Traag

Many of the essential features of the evolution of scientific research are imprinted in the structure of citation networks. Connections in these networks imply information about the transfer of knowledge among papers, or in other words,…

物理与社会 · 物理学 2014-05-23 Enys Mones , Péter Pollner , Tamás Vicsek

The integration of complementary medicine into oncology represents a paradigm shift that has seen to increasing adoption of Traditional Chinese Medicine (TCM) as an adjuvant to radiotherapy. About twenty-five years since the formal…

计算与语言 · 计算机科学 2026-04-30 P. Bilha Githinji , Aikaterini Melliou

Previous work indicates that over the past 20 years, the highest quality work have been published in an increasingly diverse and larger group of journals. In this paper we examine whether this diversification has also affected the handful…

数字图书馆 · 计算机科学 2013-04-25 Vincent Lariviere , George A. Lozano , Yves Gingras

The basic principles underlying galactic chemical evolution and the most important results of chemical evolution models are discussed. In particular, the chemical evolution of the Milky Way galaxy, for which we possess the majority of…

天体物理学 · 物理学 2007-05-23 Francesca Matteucci

We show a grid of multiphase models whose results are valid for any spiral galaxy, using as input the luminosity or the rotation velocity and the morphological type, measured by the classical index T from 1 to 10.

天体物理学 · 物理学 2007-05-23 Mercedes Molla , A. Diaz , Federico Ferrini

We develop a hierarchical structure (HS) analysis for quantitative description of statistical states of spatially extended systems. Examples discussed here include an experimental reaction-diffusion system with Belousov-Zhabotinsky…

斑图形成与孤子 · 物理学 2007-05-23 Jian Liu , Zhen-Su She , Hongyu Guo , Liang Li , Qi Ouyang

Motivated by the results of recent laboratory experiments (Yoshida et al. Nature, 424, 303-306 (2003)) as well as many earlier field observations that evolutionary changes can take place in ecosystems over relatively short ecological time…

种群与进化 · 定量生物学 2007-05-23 Debashish Chowdhury , Dietrich Stauffer

The quantity and quality of scientific output of the topmost 50 countries in the four basic sciences (agricultural and biological sciences, chemistry, mathematics, and physics and astronomy) are studied in the period of the recent 12 years…

物理与社会 · 物理学 2013-04-10 Ammar Nejati , Seyyed Mehdi Hosseini Jenab

A data set of Hirsch indices, $h$, for Finnish scientists in certain fields is statistically analyzed and fitted to $h(n) =Pn^p$ for the $n$-th most-quoted scientist. The precoefficient $P$ is characteristic for the field and the exponent…

数据分析、统计与概率 · 物理学 2007-05-23 Pekka Pyykko

This paper presents the first comprehensive study on automatic readability assessment of Turkish texts. We combine state-of-the-art neural network models with linguistic features at lexical, morphological, syntactic and discourse levels to…

计算与语言 · 计算机科学 2025-09-05 Ahmet Yavuz Uluslu , Gerold Schneider

In this paper, we address a distributed control problem for a system of partial differential equations describing the evolution of a tumor that takes the biological mechanism of chemotaxis into account. The system describing the evolution…

最优化与控制 · 数学 2023-09-19 Gianni Gilardi , Andrea Signori , Jürgen Sprekels

The proliferation of surveys and review articles in academic journals has impacted citation metrics like impact factor and h-index, skewing evaluations of journal and researcher quality. This work investigates the implications of this…

数字图书馆 · 计算机科学 2025-04-09 Jesus S. Aguilar-Ruiz

Ageing of publications, percentage of self-citations, and impact vary from journal to journal within fields of science. The assumption that citation and publication practices are homogenous within specialties and fields of science is…

物理与社会 · 物理学 2009-11-10 Loet Leydesdorff

We analyze the time evolution of citations acquired by articles from journals of the American Physical Society (PRA, PRB, PRC, PRD, PRE and PRL). The observed change over time in the number of papers published in each journal is considered…

数字图书馆 · 计算机科学 2017-11-06 K. W. Higham , M. Governale , A. B. Jaffe , U. Zülicke

We propose a simple new index, named the $CI$-index, based on the Choquet integral to characterize the scientific output of researchers. This index is an improvement of the $A$-index and $R$-index and has a notable feature that highly cited…

应用统计 · 统计学 2019-05-16 Xuehua Yin , Xiuyan Sha , Chuancun Yin

In this paper, we examine the evolution of the impact of older scholarly articles. We attempt to answer four questions. First, how often are older articles cited and how has this changed over time. Second, how does the impact of older…

Dynamic structure of languages poses significant challenges in applying natural language processing models on historical texts, causing decreased performance in various downstream tasks. Turkish is a prominent example of rapid linguistic…

计算与语言 · 计算机科学 2024-11-26 Umur Togay Yazar , Mucahid Kutlu

At what level does selective pressure effectively act? When considering the reproductive dynamics of interacting and mutating agents, it has long been debated whether selection is better understood by focusing on the individual or if…

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