Learning Evolutionary Stages with Hidden Semi-Markov Model for Predicting Social Unrest Events
Joint Authors
Qiao, Fengcai
Zhang, Xin
Deng, Jinsheng
Source
Discrete Dynamics in Nature and Society
Issue
Vol. 2020, Issue 2020 (31 Dec. 2020), pp.1-16, 16 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2020-10-09
Country of Publication
Egypt
No. of Pages
16
Main Subjects
Abstract EN
Social unrest events are common happenings in modern society which need to be proactively handled.
An effective method is to continuously assess the risk of upcoming social unrest events and predict the likelihood of these events.
Our previous work built a hidden Markov model- (HMM-) based framework to predict indicators associated with country instability, leaving two shortcomings which can be optimized: omitting event participants’ interaction and implicitly learning the state residence time.
Inspired by this, we propose a new prediction framework in this paper, using frequent subgraph patterns and hidden semi-Markov models (HSMMs).
The feature called BoEAG (Bag-of-Event-Association-subGraph) is constructed based on frequent subgraph mining and the bag of word model.
The new framework leverages the large-scale digital history events captured from GDELT (Global Data on Events, Location, and Tone) to characterize the transitional process of the social unrest events’ evolutionary stages, uncovering the underlying event development mechanics and formulating the social unrest event prediction as a sequence classification problem based on Bayes decision.
Experimental results with data from five main countries in Southeast Asia demonstrate the effectiveness of the new method, which outperforms the traditional HMM by 5.3% to 16.8% and the logistic regression by 11.2% to 43.6%.
American Psychological Association (APA)
Qiao, Fengcai& Zhang, Xin& Deng, Jinsheng. 2020. Learning Evolutionary Stages with Hidden Semi-Markov Model for Predicting Social Unrest Events. Discrete Dynamics in Nature and Society،Vol. 2020, no. 2020, pp.1-16.
https://search.emarefa.net/detail/BIM-1153011
Modern Language Association (MLA)
Qiao, Fengcai…[et al.]. Learning Evolutionary Stages with Hidden Semi-Markov Model for Predicting Social Unrest Events. Discrete Dynamics in Nature and Society No. 2020 (2020), pp.1-16.
https://search.emarefa.net/detail/BIM-1153011
American Medical Association (AMA)
Qiao, Fengcai& Zhang, Xin& Deng, Jinsheng. Learning Evolutionary Stages with Hidden Semi-Markov Model for Predicting Social Unrest Events. Discrete Dynamics in Nature and Society. 2020. Vol. 2020, no. 2020, pp.1-16.
https://search.emarefa.net/detail/BIM-1153011
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1153011