その他

基本情報

氏名 橋本 隆子
氏名(カナ) ハシモト タカコ
氏名(英語) HASHIMOTO, Takako
所属 商経学部
職名 教授
researchmap研究者コード
researchmap機関

翻訳書、学会発表、講演、作品等の名称

Topic Detection about the Great Japan East Earthquake based on Emerging Modularity

単・共の別

共著

発行又は発表の年月

201206

発表学会等の名称

Proc. of the 22nd European-Japanese Conference on Information Modelling and Knowledge Bases (EJC2012)

概要

Once a disaster occurs, people discuss various topics in social media such as electronic bulletin boards, SNSs and video services, and their decision-making tends to be affected by discussions in social media. Under the circumstance, a mechanism to detect topics in social media has become important. This paper targets the East Japan Great Earthquake, and proposes a time series topic detection method based on modularity measure which shows the quality of a division of a network into modules or communities. Our proposed method clarifies emerging topics from social media messages by computing the modularity and analyzing them over time, and visualizes topic structures. An experimental result by actual social media data about the East Japan Great Earthquake is also shown.

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