50 citations · 121 across the 9 of their papers we have counts for
9 papers
Financial fire sales as continuous-state complex contagion
Tomokatsu Onaga, Fabio Caccioli, Teruyoshi Kobayashi
Trading activities in financial systems create various channels through which systemic risk can propagate. An important contagion channel is financial fire sales, where a bank fail…
Unstable diffusion in social networks
Teruyoshi Kobayashi, Yoshitaka Ogisu, Tomokatsu Onaga
How and to what extent will new activities spread through social ties? Here, we develop a more sophisticated framework than the standard mean-field approach to describe the diffusi…
Analytical estimation of maximum fraction of infected individuals with one-shot non-pharmaceutical intervention in a hybrid epidemic model
Naoya Fujiwara, Tomokatsu Onaga, Takayuki Wada +4
Facing a global epidemic of new infectious diseases such as COVID-19, non-pharmaceutical interventions (NPIs), which reduce transmission rates without medical actions, are being im…
Dynamics of diffusion on monoplex and multiplex networks: A message-passing approach
Teruyoshi Kobayashi, Tomokatsu Onaga
New ideas and technologies adopted by a small number of individuals occasionally spread globally through a complex web of social ties. Here, we present a simple and general approxi…
Branching process descriptions of information cascades on Twitter
James P. Gleeson, Tomokatsu Onaga, Peter Fennell +3
A detailed analysis of Twitter-based information cascades is performed, and it is demonstrated that branching process hypotheses are approximately satisfied. Using a branching proc…
Concurrency-induced transitions in epidemic dynamics on temporal networks
Tomokatsu Onaga, James P. Gleeson, Naoki Masuda
Social contact networks underlying epidemic processes in humans and animals are highly dynamic. The spreading of infections on such temporal networks can differ dramatically from s…
Emergence of event cascades in inhomogeneous networks
Tomokatsu Onaga, Shigeru Shinomoto
There is a commonality among contagious diseases, tweets, urban crimes, nuclear reactions, and neuronal firings that past events facilitate the future occurrence of events. The spr…
Bursting activity spreading through asymmetric interactions
Tomokatsu Onaga, Shigeru Shinomoto
People communicate with those who have the same background or share a common interest by using a social networking service (SNS). News or messages propagate through inhomogeneous c…
Bursting transition in a linear self-exciting point process
Tomokatsu Onaga, Shigeru Shinomoto
Self-exciting point processes describe the manner in which every event facilitates the occurrence of succeeding events. By increasing excitability, the event occurrences start to e…