181 citations · 270 across the 12 of their papers we have counts for
6 papers · 1 filter
Coevolution of epidemic dynamics and network topology driven by disease fatality and waning immunity
ThankGod I. S. Ikpe, Takayuki Hiraoka, Naoya Fujiwara
Epidemics on complex networks have been shown to exhibit dynamics that are strongly influenced by the topology of the network. However, it remains unclear how the topology of the n…
Urban spatial structures from human flow by Hodge-Kodaira decomposition
Takaaki Aoki, Shota Fujishima, Naoya Fujiwara
Human flow in cities indicates social activity and can reveal urban spatial structures based on human behaviours for relevant applications. Scalar potential is a mathematical conce…
Non-Compulsory Measures Sufficiently Reduced Human Mobility in Tokyo during the COVID-19 Epidemic
Takahiro Yabe, Kota Tsubouchi, Naoya Fujiwara +3
While large scale mobility data has become a popular tool to monitor the mobility patterns during the COVID-19 pandemic, the impacts of non-compulsory measures in Tokyo, Japan on h…
Universality of population recovery patterns after disasters
Takahiro Yabe, Kota Tsubouchi, Naoya Fujiwara +2
Despite the rising importance of enhancing community resilience to disasters, our understanding on how communities recover from catastrophic events is limited. Here we study the po…
Contribution of hidden modes to nonlinear epidemic dynamics in urban human proximity networks
Naoya Fujiwara, Abhijeet R. Sonawane, Koji Iwayama +1
Recently developed techniques to acquire high-quality human mobility data allow large-scale simulations of the spread of infectious diseases with high spatial and temporal resoluti…
Smoothing effect for spatially distributed renewable resources and its impact on power grid robustness
Motoki Nagata, Yoshito Hirata, Naoya Fujiwara +3
In this paper, we show that spatial correlation of renewable energy outputs greatly influences the robustness of power grids. First, we propose a new index for the spatial correlat…