Detecting Suicide Risk in Online Counseling Services: A Study in a Low-Resource Language

• URL: http://arxiv.org/abs/2209.04830v1
• Date: Sun, 11 Sep 2022 10:06:14 GMT
• Title: Detecting Suicide Risk in Online Counseling Services: A Study in a Low-Resource Language
• Authors: Amir Bialer and Daniel Izmaylov and Avi Segal and Oren Tsur and Yossi Levi-Belz and Kobi Gal
• Abstract summary: We propose a model that combines pre-trained language models (PLM) with a fixed set of manually crafted (and clinically approved) set of suicidal cues. Our model achieves 0.91 ROC-AUC and an F2-score of 0.55, significantly outperforming an array of strong baselines even early on in the conversation.
• Score: 5.2636083103718505
• License: http://creativecommons.org/licenses/by-nc-nd/4.0/
• Abstract: With the increased awareness of situations of mental crisis and their societal impact, online services providing emergency support are becoming commonplace in many countries. Computational models, trained on discussions between help-seekers and providers, can support suicide prevention by identifying at-risk individuals. However, the lack of domain-specific models, especially in low-resource languages, poses a significant challenge for the automatic detection of suicide risk. We propose a model that combines pre-trained language models (PLM) with a fixed set of manually crafted (and clinically approved) set of suicidal cues, followed by a two-stage fine-tuning process. Our model achieves 0.91 ROC-AUC and an F2-score of 0.55, significantly outperforming an array of strong baselines even early on in the conversation, which is critical for real-time detection in the field. Moreover, the model performs well across genders and age groups.

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