PSYCH OpenIR  > 健康与遗传心理学研究室
Detecting Suicidal Ideation in Chinese Microblogs with Psychological Lexicons
Xiaolei Huang1,2; Lei Zhang1; Tianli Liu3; David Chiu4; Xin Li2; Tingshao Zhu1
2014
Source PublicationComputer Science
Issue不详Pages:1-7
Abstract

Suicide is among the leading causes of death in China, however, technical approaches toward preventing suicide are challenging and remain under development. Recently, several suicidal cases were preceded by users who posted microblogs with suicidal ideation to Sina Weibo, a Chinese social media network akin to Twitter. Up to now, we have identified 53 known suicidal cases who posted suicide notes on Weibo prior to their deaths. It would therefore be desirable to detect suicidal ideations from microblogs in real-time, and immediately alert appropriate support groups, which may lead to successful prevention. In this paper, we propose a real-time suicidal ideation detection system deployed over Weibo, using machine learning and known psychological techniques. We explore linguistic features using a psychological lexicon dictionary, and train an effective suicidal Weibo post detection model. 6714 tagged posts and several classifiers are used to verify the model. By combining both machine learning and psychological knowledge, SVM classifier has the best performance of different classifiers, yielding an Fmeasure of 68:3%, a Precision of 78:9%, and a Recall of 60:3%.

Indexed By其他
Language英语
Document Type期刊论文
Identifierhttp://ir.psych.ac.cn/handle/311026/25616
Collection健康与遗传心理学研究室
Corresponding AuthorXin Li; Tingshao Zhu
Affiliation1.Institute of Psychology, Chinese Academy of Sciences, China
2.China Networking Information Center, Chinese Academy of Sciences, China
3.Institute of Population Research, Peking University, China
4.Department of Mathematics and Computer Science, University of Puget Sound, USA
First Author AffilicationInstitute of Psychology, Chinese Academy of Sciences
Corresponding Author AffilicationInstitute of Psychology, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Xiaolei Huang,Lei Zhang,Tianli Liu,et al. Detecting Suicidal Ideation in Chinese Microblogs with Psychological Lexicons[J]. Computer Science,2014(不详):1-7.
APA Xiaolei Huang,Lei Zhang,Tianli Liu,David Chiu,Xin Li,&Tingshao Zhu.(2014).Detecting Suicidal Ideation in Chinese Microblogs with Psychological Lexicons.Computer Science(不详),1-7.
MLA Xiaolei Huang,et al."Detecting Suicidal Ideation in Chinese Microblogs with Psychological Lexicons".Computer Science .不详(2014):1-7.
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