no code implementations • 17 Oct 2023 • Samin Aref, Mahdi Mostajabdaveh
Our findings reveal that the average modularity-based heuristic yields optimal partitions in only 43. 9% of the 104 networks analyzed.
no code implementations • 28 Feb 2023 • Samin Aref, Mahdi Mostajabdaveh, Hriday Chheda
Additionally, results on adjusted mutual information reveal substantial dissimilarity between the sub-optimal partitions and any optimal partition of the networks in our experiments.
no code implementations • 10 Sep 2022 • Samin Aref, Hriday Chheda, Mahdi Mostajabdaveh
Community detection is a classic problem in network science with extensive applications in various fields.
no code implementations • 15 Oct 2021 • Xinyi Zhao, Samin Aref, Emilio Zagheni, Guy Stecklov
Moreover, we find that the gender disparities for the most gender imbalanced disciplines are unlikely to be mitigated by return migration given the gender compositions of the cohorts of researchers who have left Germany and of those who have returned.
no code implementations • 7 Aug 2020 • Alexander Subbotin, Samin Aref
We study international mobility in academia, with a focus on the migration of published researchers to and from Russia.
Digital Libraries Computers and Society Social and Information Networks Physics and Society K.4; J.4
1 code implementation • 20 May 2020 • Samin Aref, Ly Dinh, Rezvaneh Rezapour, Jana Diesner
We expand this modeling approach to incorporate directionality of edges, and consider three levels of analysis: triads, subgroups, and the whole network.
Social and Information Networks Optimization and Control Physics and Society 05C22, 90C90, 90C09, 90C10, 90C35, 05C15, 65K05
3 code implementations • 4 Jun 2019 • Samin Aref, Zachary Neal
Substantively, we use the partisanship of such coalitions in the US Congress since 1979 to examine the impact of polarization on rates of bill passage.
Social and Information Networks Optimization and Control Physics and Society
1 code implementation • 13 Dec 2017 • Samin Aref, Mark C. Wilson
The purpose served by exploring several problems in this paper is to propose a single general methodology for studying signed networks and to demonstrate its relevance to applications.
Social and Information Networks Optimization and Control 05C22 90C35 90C90 90C09 90C10
1 code implementation • 26 Oct 2017 • Samin Aref, Andrew J. Mason, Mark C. Wilson
An important measure of signed graphs is the line index of balance which has several applications in many fields.
Social and Information Networks Optimization and Control 05C22, 15C22, 90C09, 90C11, 90C90, 90C35
2 code implementations • 28 Nov 2016 • Samin Aref, Andrew J. Mason, Mark C. Wilson
Computing the frustration index of a signed graph is a key step toward solving problems in many fields including social networks, physics, material science, and biology.
Social and Information Networks Optimization and Control 90C10, 90C20, 90C35, 90C57, 90C90, 05C15, 11E16, 65K05