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Adding links on minimum degree and longest distance strategies for improving network robustness and efficiency
Masaki Chujyo1, Yukio Hayashi1
1Graduate School of Advanced Science and Technology, Japan Advanced Institute of Science and Technology, Nomi, Ishikawa, Japan.
Plos One
|October 26, 2022
Summary
Strengthening network robustness against attacks is crucial. Adding links using the minimum degree strategy significantly improves network resilience, outperforming other methods for most scenarios.
Area of Science:
- Network Science
- Complex Systems
- Cybersecurity
Background:
- Real-world networks often exhibit power-law degree distributions, making them vulnerable to malicious attacks.
- Existing research suggests link addition methods can enhance network robustness, with minimum degree and longest distance strategies being prominent.
Purpose of the Study:
- To investigate the independent and combined effects of minimum degree and longest distance strategies on network robustness.
- To determine the optimal strategy for improving network resilience against attacks.
Main Methods:
- Numerical simulations were employed to analyze the impact of link addition strategies.
- Distinguishing the effects of node degrees and distances was a key focus in evaluating strategies.
Main Results:
- The minimum degree strategy consistently improved robustness in both synthetic and real-world networks.
- The longest distance strategy showed effectiveness only when a small number of links were added.
- The shortest distance strategy, even combined with the minimum degree strategy, offered minimal improvement.
Conclusions:
- Enhancing global network structures (loops) is more critical for robustness than local structures.
- The minimum degree strategy is a highly effective method for improving network resilience.
- Network robustness can be significantly bolstered by strategic link additions, particularly focusing on global connectivity.
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