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Updated: Jun 18, 2025
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Analysis of Cell Migration within a Three-dimensional Collagen Matrix
Published on: October 5, 2014
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The form and evolution of international migration networks, 1990-2015
Guy J Abel1,2, Jack DeWaard3, Jasmine Trang Ha4
1Asian Demographic Research Institute, School of Sociology and Political Science, Shanghai University, Shanghai, China.
Population, Space and Place
|August 2, 2024
Summary
This study introduces a new algorithm to map international migration networks. Migration networks show remarkable stability in size and composition over 25 years, despite short-term changes.
Area of Science:
- Computational Social Science
- International Migration Studies
- Network Analysis
Background:
- Lack of a standardized, data-driven method for defining geographic boundaries of international migration networks.
- Existing approaches do not adequately capture the dynamic nature of global migration systems.
Purpose of the Study:
- To introduce and apply the Information Theoretic Community Detection Algorithm (ITC) for identifying and analyzing migration network boundaries.
- To trace the evolution of international migration networks from 1990-1995 to 2010-2015.
Main Methods:
- Utilized community detection methods from network science.
- Applied the ITC algorithm to a novel dataset of country-to-country migration flows.
- Analyzed migration network structures over 25-year period at 5-year intervals.
Main Results:
- International migration networks exhibit significant dynamic stability in terms of number, size, and country composition over 25 years.
- Documented numerous short-term fluctuations within the generally stable network structures.
- The ITC algorithm effectively identifies and delineates the geographic boundaries of these networks.
Conclusions:
- The study demonstrates the utility of the ITC algorithm for understanding migration network dynamics.
- Findings support the concept of dynamic stability in international migration systems.
- Promotes consensus on best practices and tools for studying international migration networks.
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