activity
20162026
most citedHerd Immunity and Epidemic Size in Networks with Vaccination Homophily

31 citations · 40 across the 9 of their papers we have counts for

collaborators

18 papers

physics.soc-ph2026

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…

physics.soc-ph2026

Message passing and cyclicity transition

Takayuki Hiraoka

Message passing, also known as belief propagation, is a versatile framework for analyzing models defined on graphs. Its most prototypical application is percolation; yet, the inter…

q-bio.PE2026

Epidemic reproduction numbers in spatial networks

Zahra Ghadiri, Jari Saramäki, Takayuki Hiraoka

The basic and effective reproduction numbers are widely used metrics for characterizing the dynamics of infectious disease epidemics. However, the interpretation of these numbers i…

physics.soc-ph2025★ 2 cited

Hierarchical organization of bursty trains in event sequences

Takayuki Hiraoka, Hang-Hyun Jo

Temporal sequences of discrete events that describe natural and social processes are often driven by non-Poisson dynamics. In addition to a heavy-tailed interevent time distributio…

physics.soc-ph2025

Block-corrected Modularity for Community Detection

Hasti Narimanzadeh, Takayuki Hiraoka, Mikko Kivelä

Unknown node attributes in complex networks may introduce community structures that are important to distinguish from those driven by known attributes. We propose a block-corrected…

physics.soc-ph2024★ 2 cited

Geospatial analysis of toponyms in geotagged social media posts

Takayuki Hiraoka, Takashi Kirimura, Naoya Fujiwara

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 locatio…