Title
Time Series Topic Transition Based on Micro-Clustering.
Abstract
This paper proposes a method for analyzing time series topic transition based on micro-clusters to present different situations that show people's reactions to topical problems on the Web. To form micro-clusters, we leverage our original data polishing algorithm developed by one of the authors. Our method shows that micro-clusters efficiently represent the dynamics of topic transitions: for example, events cause sudden changes in the number of clusters. This implies that there were increases or decrease of diversity of cluster contents that correspond to people's feelings and opinions to the topic. To show the method's effectiveness, we conducted an experiment on tweets targeting rumors of a petrochemical complex explosion just after the Great East Japan Earthquake in 2011. Our method easily identifies the following phases in topic transitions. First, people post the real story. Second, rumors circulate about the explosion. Finally, the rumors were corrected by the government and gradually disappeared.
Year
DOI
Venue
2019
10.1109/BIGCOMP.2019.8679255
BigComp
Keywords
Field
DocType
Time series analysis,Clustering algorithms,Explosions,Earthquakes,Petrochemicals,Data mining,Social networking (online)
Cluster (physics),Time series,Leverage (finance),Information retrieval,Computer science,Cluster analysis,Government
Conference
ISSN
ISBN
Citations 
2375-933X
978-1-5386-7789-6
0
PageRank 
References 
Authors
0.34
0
5
Name
Order
Citations
PageRank
Takako Hashimoto15018.47
Takeaki Uno21319107.99
Tetsuji Kuboyama314029.36
Kilho Shin48910.44
Dave Shepard500.34