Zobrazeno 1 - 10
of 51
pro vyhledávání: '"Hiraoka, Takayuki"'
Place names, or toponyms, play an integral role in human representation and communication of geographic space. In particular, how people relate each toponym with particular locations in geographic space should be indicative of their spatial perceptio
Externí odkaz:
http://arxiv.org/abs/2410.03250
When a fraction of a population becomes immune to an infectious disease, the population-wide infection risk decreases nonlinearly due to collective protection known as herd immunity. Studies based on mean-field models suggest that natural infection i
Externí odkaz:
http://arxiv.org/abs/2307.04700
We study how the herd immunity threshold and the expected epidemic size depend on homophily with respect to vaccine adoption. We find that the presence of homophily considerably increases the critical vaccine coverage needed for herd immunity and tha
Externí odkaz:
http://arxiv.org/abs/2112.07538
Autor:
Molla, Jeta, Chávez, Alejandro Ponce de León, Hiraoka, Takayuki, Ala-Nissila, Tapio, Kivelä, Mikko, Leskelä, Lasse
We evaluate the efficiency of various heuristic strategies for allocating vaccines against COVID-19 and compare them to strategies found using optimal control theory. Our approach is based on a mathematical model which tracks the spread of disease am
Externí odkaz:
http://arxiv.org/abs/2105.11562
Publikováno v:
Phys. Rev. E 104, 014312 (2021)
The origin of non-Poissonian or bursty temporal patterns observed in various datasets for human social dynamics has been extensively studied, yet its understanding still remains incomplete. Considering the fact that humans are social beings, a fundam
Externí odkaz:
http://arxiv.org/abs/2011.01562
Autor:
Masuda, Naoki, Hiraoka, Takayuki
Publikováno v:
Northeast Journal of Complex Systems, 2(1), 1 (2020)
We present an English translation and discussion of an essay that a Japanese physicist, Torahiko Terada, wrote in 1922. In the essay, he described the waiting-time paradox, also called the bus paradox, which is a known mathematical phenomenon in queu
Externí odkaz:
http://arxiv.org/abs/2004.14081
Publikováno v:
Phys. Rev. Research 2, 023073 (2020)
The concept of temporal networks provides a framework to understand how the interaction between system components changes over time. In empirical communication data, we often detect non-Poissonian, so-called bursty behavior in the activity of nodes a
Externí odkaz:
http://arxiv.org/abs/1912.11212
Publikováno v:
Scientific Reports 10, 12202 (2020)
Comprehensive characterization of non-Poissonian, bursty temporal patterns observed in various natural and social processes is crucial to understand the underlying mechanisms behind such temporal patterns. Among them bursty event sequences have been
Externí odkaz:
http://arxiv.org/abs/1907.13556
Autor:
Jo, Hang-Hyun, Hiraoka, Takayuki
Characterizing bursty temporal interaction patterns of temporal networks is crucial to investigate the evolution of temporal networks as well as various collective dynamics taking place in them. The temporal interaction patterns have been described b
Externí odkaz:
http://arxiv.org/abs/1907.12558
Publikováno v:
Phys. Rev. E 100, 022307 (2019)
Dynamical processes in various natural and social phenomena have been described by a series of events or event sequences showing non-Poissonian, bursty temporal patterns. Temporal correlations in such bursty time series can be understood not only by
Externí odkaz:
http://arxiv.org/abs/1904.08795