Performance Evaluation of Nomadic Lévy Walk on Unit Disk Graphs Using Hierarchical Clustering

Author(s):  
Koichiro Sugihara ◽  
Naohiro Hayashibara
2020 ◽  
Vol 11 (2) ◽  
pp. 221 ◽  
Author(s):  
Koichiro Sugihara ◽  
Naohiro Hayashibara

Author(s):  
Ginestra Bianconi

This chapter addresses diffusion, random walks and congestion in multilayer networks. Here it is revealed that diffusion on a multilayer network can be significantly speed up with respect to diffusion taking place on its single layers taken in isolation, and that sometimes it is possible also to observe super-diffusion. Diffusion is here characterized on multilayer network structures by studying the spectral properties of the supra-Laplacian and the dependence on the diffusion constant among different layers. Random walks and its variations including the Lévy Walk are shown to reflect the improved navigability of multilayer networks with more layers. These results are here compared with the results of traffic on multilayer networks that, on the contrary, point out that increasing the number of layers could be detrimental and could lead to congestion.


2021 ◽  
pp. 101808
Author(s):  
Adrian Dumitrescu ◽  
Anirban Ghosh ◽  
Csaba D. Tóth
Keyword(s):  

Symmetry ◽  
2021 ◽  
Vol 13 (7) ◽  
pp. 1140
Author(s):  
Daiki Andoh ◽  
Yukio-Pegio Gunji

The Lévy walk is a pattern that is often seen in the movement of living organisms; it has both ballistic and random features and is a behavior that has been recognized in various animals and unicellular organisms, such as amoebae, in recent years. We proposed an amoeba locomotion model that implements Bayesian and inverse Bayesian inference as a Lévy walk algorithm that balances exploration and exploitation, and through a comparison with general random walks, we confirmed its effectiveness. While Bayesian inference is expressed only by P(h) = P(h|d), we introduce inverse Bayesian inference expressed as P(d|h) = P(d) in a symmetry fashion. That symmetry contributes to balancing contracting and expanding the probability space. Additionally, the conditions of various environments were set, and experimental results were obtained that corresponded to changes in gait patterns with respect to changes in the conditions of actual metastatic cancer cells.


Author(s):  
A. Karim Abu-Affash ◽  
Paz Carmi ◽  
Anil Maheshwari ◽  
Pat Morin ◽  
Michiel Smid ◽  
...  

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