A suicide risk identification method based on a microblog text

A risk identification and text technology, applied in the network field, can solve the problems of low timeliness and high cost of suicide risk assessment, achieve good social and economic benefits, improve coverage and speed, and avoid detection effects.

Active Publication Date: 2019-06-21
HANGZHOU NORMAL UNIVERSITY
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AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problems of low timeliness, high cost and passivity of the current suicide risk assessment work, and propose a suicide risk identification method based on microblog texts. Adopting this technical solution helps to improve the coverage of suicide risk assessment work and speed, and improved the identification accuracy of Weibo suicide risk

Method used

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  • A suicide risk identification method based on a microblog text
  • A suicide risk identification method based on a microblog text
  • A suicide risk identification method based on a microblog text

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Embodiment

[0046] Example: such as figure 1 As shown, a suicide risk identification method based on microblog text includes the following steps: Step S1: Establish suicide microblog corpus;

[0047] Step S2: Establish a suicide microblog corpus identification model;

[0048] Step S3: Experimental design to find the optimal model;

[0049] Step S4: Judgment result output.

[0050] In this embodiment, the function of automatically capturing microblog text data of a specific user is realized by building a microblog corpus collection system. Afterwards, through a series of corpus preprocessing operations, the suicide research microblog corpus was finally established, and a neural network model nC-BiLSTM with a mixed architecture was built, using multiple convolution layers with different convolution kernels to extract local feature information. The bidirectional long-short-term memory network layer extracts the contextual semantic feature information of the sentence, which can be applied ...

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Abstract

The invention discloses a suicide risk identification method based on a microblog text. The suicide risk identification method comprises the following steps: S1, establishing a suicide microblog corpus; S2, establishing a suicide microblog corpus recognition model; S3, carrying out experimental design to find an optimal model; S4, outputting a judgment result; The method has the beneficial effectsthat the user with the suicide risk can be quickly and actively identified by adopting the method, and effective intervention can be timely discovered and carried out at the early stage of individualsuicide idea formation, so that the coverage and the speed of suicide risk assessment work are greatly improved; The common problem of lack of suicide text data in previous research is solved; The bottleneck problem of improvement of prediction precision of a single structure of the current neural network is solved, and the method has good social benefits and economic benefits when applied to early prevention of suicide intervention.

Description

technical field [0001] The invention relates to the field of network technology, in particular to a suicide risk identification method based on microblog text. Background technique [0002] At present, psychological scales are mainly used to assess individual suicide risk in clinical and community contexts. The commonly used suicide risk assessment scale in my country at this stage is mainly derived from the translation and localization revision of the original foreign scale. Li Xianyun et al. revised the simplified Chinese version of the Beck Suicidal Ideation Scale and tested its reliability and validity among adults in Chinese communities. They found that the scale was the best for assessing the most depressed, depressed and suicidal period of individuals. In addition, Liang Yingnan et al. translated and revised the simplified Chinese version of the Suicide Possibility Scale, and verified that it has good reliability and validity among college students in my country. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/27G06F16/951G06F16/9535G06N3/04
CPCY02A90/10
Inventor 孙军梅章宣
Owner HANGZHOU NORMAL UNIVERSITY
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