Title
Topic Detection about the East Japan Great Earthquake based on Emerging Modularity.
Abstract
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.
Year
DOI
Venue
2012
10.3233/978-1-61499-177-9-110
Frontiers in Artificial Intelligence and Applications
Keywords
Field
DocType
Topic detection,The East Japan Great Earthquake,Modularity,Data mining
Data science,Discrete mathematics,Mathematics,Modularity
Conference
Volume
ISSN
Citations 
251
0922-6389
1
PageRank 
References 
Authors
0.39
0
3
Name
Order
Citations
PageRank
Takako Hashimoto15018.47
Tetsuji Kuboyama214029.36
Yukari Shirota310.39