论文标题
在线咨询服务中检测自杀风险：低资源语言的研究
Detecting Suicide Risk in Online Counseling Services: A Study in a Low-Resource Language
论文作者
论文摘要
随着人们对精神危机及其社会影响的认识，在许多国家，提供紧急支持的在线服务变得司空见惯。接受寻求帮助者和提供者之间讨论的培训的计算模型可以通过识别高危个人来支持预防自杀。但是，缺乏特定领域的模型，尤其是在低资源语言中，对自动检测自杀风险构成了重大挑战。我们提出了一个模型，该模型将预训练的语言模型（PLM）与一组固定的手动制作（并经过临床批准）的自杀提示相结合，然后进行了两阶段的微调过程。我们的模型达到了0.91 ROC-AUC和0.55的F2分数，甚至在对话的早期甚至在对话的早期就超过了一系列强大的基线，这对于现场实时检测至关重要。此外，该模型在性别和年龄段之间表现良好。
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.
