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Social network suicide idea detection method and system

A technology of social network and detection method, applied in the field of natural language, can solve the problems of inability to extract and screen social network information, and the detection of suicidal ideation is very limited, and achieve the effect of solving the problem of difficult data acquisition and data scarcity.

Pending Publication Date: 2021-02-26
TSINGHUA UNIV
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Problems solved by technology

[0005] The present invention provides a method and system for detecting suicidal ideation in social network, which is used to solve the defects in the prior art that the detection of suicide ideation is relatively large and cannot be well extracted and screened for social network information

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  • Social network suicide idea detection method and system
  • Social network suicide idea detection method and system
  • Social network suicide idea detection method and system

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Embodiment Construction

[0047]In order to make the purpose, technical solutions and advantages of the present invention clearer, the technical solutions in the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the present invention. Obviously, the described embodiments are part of the embodiments of the present invention , but not all examples. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0048] Aiming at the problems existing in the existing technology, a suicide risk-related individual knowledge map is constructed, and the constructed knowledge map is used to discover the reasons that lead to the suicidal ideation of Weibo users, and to further improve the accuracy of suicide ideation detection.

[0049] The present invention proposes a social network suicide idea detection m...

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Abstract

The invention provides a social network suicide idea detection method and system. The social network suicide idea detection method comprises the steps of obtaining a suicide risk individual knowledgegraph; and based on the suicide risk individual knowledge graph and a double-layer attention mechanism, obtaining user suicide idea key influence factors, constructing a graph neural network based ona social network, and performing calculation by the graph neural network to obtain a user suicide judgment result. By constructing the individual knowledge graph based on the suicide risk and establishing the double-layer attention mechanism, the problems that data are not easy to obtain and the data are rare in suicide idea analysis in the social network are effectively solved.

Description

technical field [0001] The invention relates to the technical field of natural language, in particular to a method and system for detecting suicidal ideation in a social network. Background technique [0002] Suicidal ideation is a significant problem in all countries of the world. According to various reports and statistics, the lifetime prevalence of suicidal ideation is about 9% worldwide, and this figure is much higher for people in the 18-25 age group. There are many reasons why a person might have suicidal thoughts, and the relationship between personality traits and suicidal tendencies has long been investigated and studied. However, it is still difficult to determine the degree of independent contribution of different triggers due to the heterogeneous surveyed groups and the diversity of concepts and methodologies. The immediate risk factors for suicidal ideation remain unknown, especially in developing countries. In any case, for those who have suicidal thoughts,...

Claims

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Application Information

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IPC IPC(8): G06F16/9536G06F40/30G06N3/04
CPCG06F16/9536G06F40/30G06N3/045
Inventor 冯铃曹檑张慧君
Owner TSINGHUA UNIV
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