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The Distributed Representation for Societal Risk Classification toward BBS Posts
Chen Jindong1,2; Tang Xijin1
AbstractThe risk classification of BBS posts is important to the evaluation of societal risk level within a period. Using the posts collected from Tianya forum as the data source, the authors adopted the societal risk indicators from socio psychology, and conduct document-level multiple societal risk classification of BBS posts. To effectively capture the semantics and word order of documents, a shallow neural network as Paragraph Vector is applied to realize the distributed vector representations of the posts in the vector space. Based on the document vectors, the authors apply one classification method KNN to identify the societal risk category of the posts. The experimental results reveal that paragraph vector in document-level societal risk classification achieves much faster training speed and at least 10% improvements of F-measures than Bag-of-Words. Furthermore, the performance of paragraph vector is also superior to edit distance and Lucene-based search method. The present work is the first attempt of combining document embedding method with socio psychology research results to public opinions area.
KeywordDistributed representation KNN paragraph vector model societal risk classification Tianya forum
Funding ProjectNational Natural Science Foundation of China[71171187] ; National Natural Science Foundation of China[71371107] ; National Natural Science Foundation of China[61473284]
WOS Research AreaMathematics
WOS SubjectMathematics, Interdisciplinary Applications
WOS IDWOS:000401059600008
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Document Type期刊论文
Corresponding AuthorChen Jindong
Affiliation1.Chinese Acad Sci, Acad Math & Syst Sci, Inst Syst Sci, Beijing 100190, Peoples R China
2.China Acad Aerosp Syst Sci & Engn, Beijing 100048, Peoples R China
Recommended Citation
GB/T 7714
Chen Jindong,Tang Xijin. The Distributed Representation for Societal Risk Classification toward BBS Posts[J]. JOURNAL OF SYSTEMS SCIENCE & COMPLEXITY,2017,30(3):627-644.
APA Chen Jindong,&Tang Xijin.(2017).The Distributed Representation for Societal Risk Classification toward BBS Posts.JOURNAL OF SYSTEMS SCIENCE & COMPLEXITY,30(3),627-644.
MLA Chen Jindong,et al."The Distributed Representation for Societal Risk Classification toward BBS Posts".JOURNAL OF SYSTEMS SCIENCE & COMPLEXITY 30.3(2017):627-644.
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