%0 Journal Article %A WU Shuzhao %A LI Gongquan %A BU Mingwei %T Construction of Question Answering System for Suicide Tendency Detection Based on Knowledge Graph %D 2021 %R 10.3778/j.issn.1002-8331.2103-0038 %J Computer Engineering and Applications %P 304-312 %V 57 %N 22 %X

Due to the people lack of psychological knowledge, the prevalence rate of mental illness is rising rapidly. In order to solve the problem, a small psychological counseling knowledge graph and Question Answering system(QA) is constructed. The system can help consultants to acquire psychological knowledge in time, also can identify the consultants who have suicidal tendency to prevent the occurrence of danger. Firstly, collect some psychological information data to build the dictionary, and generate entities and relationship to build the knowledge graph. Then, use the HanLP segmentation tool to generate keywords, and classify problems by CHI feature selection to improve the efficiency of QA system. By compared with other models, optimize BiLSTM model to construct the suicidal text classifier for detecting dangerous users’ speech. Finally, by computing the similarity score of template match, generate the answer. By testing the accuracy of the system, it is proved that the system can effectively answer the questions related to psychological counseling.

%U http://cea.ceaj.org/EN/10.3778/j.issn.1002-8331.2103-0038