From the 1 of 8 linked papers with an AI index.
8 papers
Temporal Shifts and Causal Interactions of Emotions in Social and Mass Media: A Case Study of the "Reiwa Rice Riot" in Japan
Erina Murata, Masaki Chujyo, Fujio Toriumi
The paper presents a machine‑learning framework for tracking how emotions evolve and influence each other over time on Twitter (X) and in Japanese news articles during the 2024 "Re…
Network-distance decay of perceived online social support
Masanori Takano, Kenji Yokotani, Masaki Chujyo +1
Perceived social support can buffer stress, but how it is associated across online social networks at different graph distances remains unclear. Here we show that inferred perceive…
An attention economy model of co-evolution between content quality and audience selectivity
Masaki Chujyo, Isamu Okada, Hitoshi Yamamoto +2
Human attention has become a scarce and strategically contested resource in digital environments. Content providers increasingly engage in excessive competition for visibility, oft…
Impact of seed node position on network robustness under localized attacks
Masaki Chujyo, Shu Liu, Fujio Toriumi
Localized attacks (LAs), where damage propagates from a single seed node to its neighbors, pose significant threats to the robustness of complex networks. Although previous studies…
Global Patterns of Knowledge: Language, Genre, and the Geography of Knowledge
Akira Matsui, Fujio Toriumi, Mitsuo Yoshida +2
Online platforms, particularly Wikipedia, have become critical infrastructures for providing diverse linguistic and cultural contexts. This human-curated knowledge now forms the fo…
Reducing Sexual Predation and Victimization Through Warnings and Awareness among High-Risk Users
Masanori Takano, Mao Nishiguchi, Fujio Toriumi
Online sexual predators target children by building trust, creating dependency, and arranging meetings for sexual purposes. This poses a significant challenge for online communicat…