653 Data Science and Its Implications on the Transformation of Information Science Ba Zhichao, Li Gang, Zhou Liqin, Mao Jin DOI: 10.3772/j.issn.1000-0135.2018.07.001 2018 Vol. 37 (7): 653-667 [Abstract] ( 315 ) HTML (1 KB)  PDF (596 KB)  ( 1189 )

668 Review and Outlook on the Users’ Mental Model of Information Retrieval System Research Han Zhengbiao DOI: 10.3772/j.issn.1000-0135.2018.07.002 2018 Vol. 37 (7): 668-677 [Abstract] ( 347 ) HTML (1 KB)  PDF (380 KB)  ( 837 )

678 A Study of Information Symmetry from the Perspective of Domain Ontologies Li Yuxuan, Huang Qi, Chen Xue, Zheng Shuya, Zhang Ge DOI: 10.3772/j.issn.1000-0135.2018.07.003 2018 Vol. 37 (7): 678-685 [Abstract] ( 202 ) HTML (1 KB)  PDF (655 KB)  ( 698 )

686 Study on the Recognition Method of Frontier Topic in the Medical Field Fan Shaoping, An Xinying, Yan Guilai, Li Yong DOI: 10.3772/j.issn.1000-0135.2018.07.004 2018 Vol. 37 (7): 686-694 [Abstract] ( 159 ) HTML (1 KB)  PDF (366 KB)  ( 688 )

695 Sentiment Classification of Micro-blog Public Opinion Based on Convolution Neural Network Zhang Haitao, Wang Dan, Xu Hailing, Sun Siyang DOI: 10.3772/j.issn.1000-0135.2018.07.005 2018 Vol. 37 (7): 695-702 [Abstract] ( 218 ) HTML (1 KB)  PDF (677 KB)  ( 1076 )

703 Vital Node Detection and Evolution Analysis in Dynamic Networks Based on PageRank Wang Yu, Liu Dongsu DOI: 10.3772/j.issn.1000-0135.2018.07.006 2018 Vol. 37 (7): 703-711 [Abstract] ( 181 ) HTML (1 KB)  PDF (617 KB)  ( 628 )

712 Research on Scenario Evolution of Food Safety Incidents Based on Knowledge Element and Bayesian Network Song Yinghua, Liu Hanxiao, Jiang Xinyu, Yang Lijiao DOI: 10.3772/j.issn.1000-0135.2018.07.007 2018 Vol. 37 (7): 712-720 [Abstract] ( 279 ) HTML (1 KB)  PDF (618 KB)  ( 711 )

721 Collaborative Order Model of Social and Knowledge Systems in Online Knowledge Communities Qiu Jiangnan, Zhang Meihui, Yang Chang DOI: 10.3772/j.issn.1000-0135.2018.07.008 2018 Vol. 37 (7): 721-731 [Abstract] ( 161 ) HTML (1 KB)  PDF (1065 KB)  ( 634 )

732 Analysis of the Evolutionary Trend of Technical Topics in Patents Based on LDA and HMM: Taking Marine Diesel Engine Technology as an Example Chen Wei, Lin Chaoran, Li Jinqiu, Yang Zaoli DOI: 10.3772/j.issn.1000-0135.2018.07.009 2018 Vol. 37 (7): 732-741 [Abstract] ( 198 ) HTML (1 KB)  PDF (1239 KB)  ( 1071 )

742 Patent Term Extraction Based on Generic Words and Term Components Yu Yan, Zhao Naixuan DOI: 10.3772/j.issn.1000-0135.2018.07.010 2018 Vol. 37 (7): 742-752 [Abstract] ( 184 ) HTML (1 KB)  PDF (879 KB)  ( 657 )