Universality of Citation Distributions for Academic Institutions and Journals

نویسندگان

  • Arnab Chatterjee
  • Asim Ghosh
  • Bikas K. Chakrabarti
چکیده

Citations measure the importance of a publication, and may serve as a proxy for its popularity and quality of its contents. Here we study the distributions of citations to publications from individual academic institutions for a single year. The average number of citations have large variations between different institutions across the world, but the probability distributions of citations for individual institutions can be rescaled to a common form by scaling the citations by the average number of citations for that institution. We find this feature seems to be universal for a broad selection of institutions irrespective of the average number of citations per article. A similar analysis for citations to publications in a particular journal in a single year reveals similar results. We find high absolute inequality for both these sets, Gini coefficients being around 0.66 and 0.58 for institutions and journals respectively. We also find that the top 25% of the articles hold about 75% of the total citations for institutions and the top 29% of the articles hold about 71% of the total citations for journals.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Correction: Universality of Citation Distributions for Academic Institutions and Journals.

Figs 1, 2 and 3 are incorrect. The x and y axes of each figure are mislabeled. The publisher apologizes for the error. The authors have provided a corrected version here. open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

متن کامل

Inequality in Societies, Academic Institutions and Science Journals: Gini and k-indices

Abstract: Social inequality is traditionally measured by the Gini-index (g). Most of the estimates of the income or wealth data indicate the g value to be widely dispersed across the countries of the world: g values typically range from 0.30 to 0.65 at a particular time (year). We estimated similarly the Gini-index for the citations earned by the yearly publications of various academic institut...

متن کامل

The Academic Ranking of World Universities

Shanghai Jiao Tong Universityhas published on the Internet an Academic Ranking of World Universities that has attracted worldwide attention. Institutions are ranked according to academic or research performance and ranking indicators include major international awards, highly cited researchers in important fields, articles published in selected top journals and/or indexed by major citation inde...

متن کامل

خوداستنادی در آیینه‌ی اخلاق

Self-citation is a behavior that is seen to varying degrees in researchers, research centers and medical journals. The question is whether self-citation is moral or not. This is a descriptive and analytical study (library and document research). Two main keywords (self-citation and ethics) were used for searching databases. In addition, efforts have been made for moral evaluation of self-citat...

متن کامل

Universality of citation distributions revisited

Radicchi, Fortunato, and Castellano [Radicchi, F., Fortunato, S., & Castellano, C. (2008). Universality of citation distributions: Toward an objective measure of scientific impact. Proceedings of the National Academy of Sciences, 105(45), 17268–17272] claim that, apart from a scaling factor, all fields of science are characterized by the same citation distribution. We present a large-scale vali...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره 11  شماره 

صفحات  -

تاریخ انتشار 2016