[HTML][HTML] Difficulty in inferring microbial community structure based on co-occurrence network approaches

H Hirano, K Takemoto - BMC bioinformatics, 2019 - Springer
Background Co-occurrence networks—ecological associations between sampled
populations of microbial communities inferred from taxonomic composition data obtained …

Financial networks based on Granger causality: A case study

A Papana, C Kyrtsou, D Kugiumtzis, C Diks - Physica A: Statistical …, 2017 - Elsevier
Connectivity analysis is performed on a long financial record of 21 international stock
indices employing a linear and a nonlinear causality measure, the conditional Granger …

Adversarial attacks on voter model dynamics in complex networks

K Chiyomaru, K Takemoto - Physical Review E, 2022 - APS
This paper investigates adversarial attacks conducted to distort voter model dynamics in
complex networks. Specifically, a simple adversarial attack method is proposed to hold the …

[HTML][HTML] Human impacts and climate change influence nestedness and modularity in food-web and mutualistic networks

K Takemoto, K Kajihara - PLoS One, 2016 - journals.plos.org
Theoretical studies have indicated that nestedness and modularity—non-random structural
patterns of ecological networks—influence the stability of ecosystems against perturbations; …

[HTML][HTML] Epidemic diffusion network of Spain: A mobility model to characterize the transmission routes of disease

J Del-Águila-Mejía, D García-García… - International Journal of …, 2023 - mdpi.com
Human mobility drives the geographical diffusion of infectious diseases at different scales,
but few studies focus on mobility itself. Using publicly available data from Spain, we define a …

A network biology-based approach to evaluating the effect of environmental contaminants on human interactome and diseases

M Iida, K Takemoto - Ecotoxicology and environmental safety, 2018 - Elsevier
Environmental contaminant exposure can pose significant risks to human health. Therefore,
evaluating the impact of this exposure is of great importance; however, it is often difficult …

Climatic seasonality may affect ecological network structure: Food webs and mutualistic networks

K Takemoto, S Kanamaru, W Feng - Biosystems, 2014 - Elsevier
Ecological networks exhibit non-random structural patterns, such as modularity and
nestedness, which determine ecosystem stability with species diversity and connectance …

Steering cooperation: Adversarial attacks on prisoner's dilemma in complex networks

K Takemoto - arXiv preprint arXiv:2406.19692, 2024 - arxiv.org
This study examines the application of adversarial attack concepts to control the evolution of
cooperation in the prisoner's dilemma game in complex networks. Specifically, it proposes a …

Mitigation of adversarial attacks on voter model dynamics by network heterogeneity

K Chiyomaru, K Takemoto - Journal of Physics: Complexity, 2023 - iopscience.iop.org
Voter model dynamics in complex networks are vulnerable to adversarial attacks. In
particular, the voting outcome can be inverted by adding extremely small perturbations that …

The challenge facing existing airport campaign groups when incorporating social media into their campaign: A social network analysis of Airport Watch's social media …

AD Rowe, DE Pitfield - Geoforum, 2018 - Elsevier
Social media has enabled people to do things differently across different campaigning
spheres. For campaign groups, social media provides frequent interaction and an ability to …