[1H4-OS-5a] OS-5

3:40 PM - 3:55 PM JST(6:40 AM - 6:55 AM UTC)

[1H4-OS-5a-01] Quantifying Information Diversity in Television: A Dual Framework for Broadcast and Received Information

〇Chihiro Iwai¹, Seiichi Igaya¹, Horikawa Yuki², Fujio Toriumi² (1. Hakuhodo DY Holdings Inc., 2. University Tokyo)

Keywords:

information diversity,content diversity

Understanding audience information behavior and receptivity requires a cross-media perspective. This study focuses on television and examines information dissemination and audience receptivity. Using program metadata and audience viewing dynamics, we propose a framework that quantifies information diversity on both the broadcast and audience sides, jointly measuring transmitted and received information within the television information space. Applying entropy and Jensen–Shannon divergence to scene-classification data from news and infotainment programs, we find that while some scene categories show highly similar information structures across broadcasters, others exhibit greater diversity. Audience-side diversity further polarizes depending on viewing behavior. Although limited by the television-only scope and metadata granularity, the proposed framework is extensible to cross-media analysis and contributes to systematic evaluation of informational health.