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We present Wikipedia Ranking of World Universities (WRWU) based on analysis of networks of 24 Wikipedia editions collected in May 2017. With PageRank and CheiRank algorithms we determine ranking of universities averaged over cultural views…

Social and Information Networks · Computer Science 2019-01-29 Célestin Coquidé , José Lages , Dima L. Shepelyansky

Interactions between countries originate from diverse aspects such as geographic proximity, trade, socio-cultural habits, language, religions, etc. Geopolitics studies the influence of a country's geographic space on its political power and…

Social and Information Networks · Computer Science 2018-08-28 Samer El Zant , Katia Jaffrès-Runser , Dima Shepelyansky

Geopolitics focuses on political power in relation to geographic space. Interactions among world countries have been widely studied at various scales, observing economic exchanges, world history or international politics among others. This…

Social and Information Networks · Computer Science 2017-07-21 Klaus M. Frahm , Samer El Zant , Katia Jaffrès-Runser , Dima L. Shepelyansky

This study concentrates on extracting painting art history knowledge from the network structure of Wikipedia. Therefore, we construct theoretical networks of webpages representing the hyper-linked structure of articles of 7 Wikipedia…

Social and Information Networks · Computer Science 2021-10-26 Samer El Zant , Katia Jaffrès-Runser , Klaus M. Frahm , Dima L. Shepelyansky

We apply the reduced Google matrix method to analyse interactions between 95 terrorist groups and determine their relationships and influence on 64 world countries. This is done on the basis of the Google matrix of the English Wikipedia…

Social and Information Networks · Computer Science 2018-01-18 Samer El Zant , Klaus M. Frahm , Katia Jaffres-Runser , Dima L. Shepelyansky

Using the new data from the OECD-WTO world network of economic activities we construct the Google matrix $G$ of this directed network and perform its detailed analysis. The network contains 58 countries and 37 activity sectors for years…

Statistical Finance · Quantitative Finance 2015-07-21 V. Kandiah , H. Escaith , D. L. Shepelyansky

Using the new data from the OECD-WTO world network of economic activities we construct the Google matrix $G$ of this directed network and perform its detailed analysis. The network contains 58 countries and 37 activity sectors for years…

Statistical Finance · Quantitative Finance 2015-07-14 V. Kandiah , H. Escaith , D. L. Shepelyansky

The percentages of shares of world publications of the European Union and its member states, China, and the United States have been represented differently as a result of using different databases. An analytical variant of the…

Digital Libraries · Computer Science 2014-05-15 Loet Leydesdorff , Caroline S. Wagner , Lutz Bornmann

We apply the recently developed reduced Google matrix algorithm for the analysis of the OECD-WTO world network of economic activities. This approach allows to determine interdependences and interactions of economy sectors of several…

Trading and Market Microstructure · Quantitative Finance 2020-12-15 Célestin Coquidé , José Lages , Dima L. Shepelyansky

Using the United Nations COMTRADE database \cite{comtrade} we construct the Google matrix $G$ of multiproduct world trade between the UN countries and analyze the properties of trade flows on this network for years 1962 - 2010. This…

Statistical Finance · Quantitative Finance 2015-04-02 Leonardo Ermann , Dima L. Shepelyansky

We develop the Google matrix analysis of the multiproduct world trade network obtained from the UN COMTRADE database in recent years. The comparison is done between this new approach and the usual Import-Export description of this world…

Social and Information Networks · Computer Science 2021-10-08 Justin Loye , Katia Jaffrès-Runser , Dima Shepelyansky

We analyze the Google matrix of directed networks of Wikipedia articles related to 8 recent Wikipedia language editions representing different cultures (English, Arabic, German, Spanish, French, Italian, Russian, Chinese). Using the reduced…

Physics and Society · Physics 2025-01-14 Klaus M. Frahm , Dima L. Shepelyansky

The production and consumption of information about Bitcoin and other digital-, or 'crypto'-, currencies have grown together with their market capitalisation. However, a systematic investigation of the relationship between online attention…

Physics and Society · Physics 2020-05-22 Abeer ElBahrawy , Laura Alessandretti , Andrea Baronchelli

The top 1 percent most highly cited articles are watched closely as the vanguards of the sciences. Using Web of Science data, one can find that China had overtaken the USA in the relative participation in the top 1 percent in 2019, after…

Digital Libraries · Computer Science 2022-02-03 Caroline S. Wagner , Lin Zhang , Loet Leydesdorff

We use the directed networks between articles of 24 Wikipedia language editions for producing the Wikipedia Ranking of World Universities (WRWU) using PageRank, 2DRank and CheiRank algorithms. This approach allows to incorporate various…

Social and Information Networks · Computer Science 2016-03-16 José Lages , Antoine Patt , Dima L. Shepelyansky

Based on the Science Citation IndexExpanded webversion, the USA is still by far the strongest nation in terms of scientific performance. Its relative decline in percentage share of publications is largely due to the emergence of China and…

Physics and Society · Physics 2009-11-06 Loet Leydesdorff , Caroline Wagner

There is a growing concern about consolidation trends in Internet services, with, for instance, a large fraction of popular websites depending on a handful of third-party service providers. In this paper, we report on a large-scale study of…

Networking and Internet Architecture · Computer Science 2021-11-29 Rashna Kumar , Sana Asif , Elise Lee , Fabi'an E. Bustamante

Wikipedia is a huge global repository of human knowledge, that can be leveraged to investigate interwinements between cultures. With this aim, we apply methods of Markov chains and Google matrix, for the analysis of the hyperlink networks…

Social and Information Networks · Computer Science 2015-03-06 Young-Ho Eom , Pablo Aragón , David Laniado , Andreas Kaltenbrunner , Sebastiano Vigna , Dima L. Shepelyansky

This study investigates the shifting global dynamics of Artificial Intelligence (AI) research by analysing the trajectories of countries dominating AI publications between 2000 and 2025. Drawing on the comprehensive OpenAlex datasets and…

Computers and Society · Computer Science 2026-03-17 Jason Hung

This paper analyzes international collaborations in Computer Science, focusing on three major players: China, the European Union, and the United States. Drawing from a comprehensive literature review, we examine collaboration patterns,…

Information Retrieval · Computer Science 2025-05-16 Alberto Gomez Espes , Michael Faerber , Adam Jatowt
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