Detecting Suicidality with a Contextual Graph Neural Network

Daeun Lee, Migyeong Kang, Minji Kim, Jinyoung Han


Abstract
Discovering individuals’ suicidality on social media has become increasingly important. Many researchers have studied to detect suicidality by using a suicide dictionary. However, while prior work focused on matching a word in a post with a suicide dictionary without considering contexts, little attention has been paid to how the word can be associated with the suicide-related context. To address this problem, we propose a suicidality detection model based on a graph neural network to grasp the dynamic semantic information of the suicide vocabulary by learning the relations between a given post and words. The extensive evaluation demonstrates that the proposed model achieves higher performance than the state-of-the-art methods. We believe the proposed model has great utility in identifying the suicidality of individuals and hence preventing individuals from potential suicide risks at an early stage.
Anthology ID:
2022.clpsych-1.10
Volume:
Proceedings of the Eighth Workshop on Computational Linguistics and Clinical Psychology
Month:
July
Year:
2022
Address:
Seattle, USA
Editors:
Ayah Zirikly, Dana Atzil-Slonim, Maria Liakata, Steven Bedrick, Bart Desmet, Molly Ireland, Andrew Lee, Sean MacAvaney, Matthew Purver, Rebecca Resnik, Andrew Yates
Venue:
CLPsych
SIG:
Publisher:
Association for Computational Linguistics
Note:
Pages:
116–125
Language:
URL:
https://aclanthology.org/2022.clpsych-1.10
DOI:
10.18653/v1/2022.clpsych-1.10
Bibkey:
Cite (ACL):
Daeun Lee, Migyeong Kang, Minji Kim, and Jinyoung Han. 2022. Detecting Suicidality with a Contextual Graph Neural Network. In Proceedings of the Eighth Workshop on Computational Linguistics and Clinical Psychology, pages 116–125, Seattle, USA. Association for Computational Linguistics.
Cite (Informal):
Detecting Suicidality with a Contextual Graph Neural Network (Lee et al., CLPsych 2022)
Copy Citation:
PDF:
https://aclanthology.org/2022.clpsych-1.10.pdf
Appendix:
 2022.clpsych-1.10.appendix.pdf
Data
Reddit