Sung Jun Yang
Author directoryAlso published as: Sungjun Yang
2026
PSY-STEP: From Surface Problems to Underlying Beliefs through Structured Therapeutic Targets and Action Sequences
Jihyun Lee | Yejin Min | Yejin Jeon | Sungjun Yang | Hyounghun Kim | Gary Lee
Findings of the Association for Computational Linguistics: EMNLP 2026
Jihyun Lee | Yejin Min | Yejin Jeon | Sungjun Yang | Hyounghun Kim | Gary Lee
Findings of the Association for Computational Linguistics: EMNLP 2026
Cognitive Behavioral Therapy (CBT) aims to identify and restructure automatic negative thoughts pertaining to involuntary interpretations of events, yet existing counseling agents struggle to identify and address them in dialogue settings. To bridge this gap, we introduce Step, a dataset that models CBT counseling by explicitly reflecting automatic thoughts alongside dynamic, action-level counseling sequences. Using this dataset, we train Stepper, a counseling agent that proactively elicits automatic thoughts and executes cognitively grounded interventions. To further enhance both decision accuracy and empathic responsiveness, we refine Stepper through preference learning based on simulated, synthesized counseling sessions. Extensive CBT-aligned evaluations show that Stepper delivers more clinically grounded, coherent, and personalized counseling compared to other strong baseline models, and achieves higher counselor competence without inducing emotional disruption.
2025
PanicToCalm: A Proactive Counseling Agent for Panic Attacks
Jihyun Lee | Yejin Min | San Kim | Yejin Jeon | Sung Jun Yang | Hyounghun Kim | Gary Lee
Proceedings of the 2025 Conference on Empirical Methods in Natural Language Processing
Jihyun Lee | Yejin Min | San Kim | Yejin Jeon | Sung Jun Yang | Hyounghun Kim | Gary Lee
Proceedings of the 2025 Conference on Empirical Methods in Natural Language Processing
Panic attacks are acute episodes of fear and distress, in which timely, appropriate intervention can significantly help individuals regain stability. However, suitable datasets for training such models remain scarce due to ethical and logistical issues. To address this, we introduce Pace, which is a dataset that includes high-distress episodes constructed from first-person narratives, and structured around the principles of Psychological First Aid (PFA). Using this data, we train Pacer, a counseling model designed to provide both empathetic and directive support, which is optimized through supervised learning and simulated preference alignment. To assess its effectiveness, we propose PanicEval, a multi-dimensional framework covering general counseling quality and crisis-specific strategies. Experimental results show that Pacer outperforms strong baselines in both counselor-side metrics and client affect improvement. Human evaluations further confirm its practical value, with Pacer consistently preferred over general, CBT-based, and GPT-4-powered models in panic scenarios.