Bao, EliseoPérez, AnxoParapar, Javier2026-06-042026-06-042025Eliseo Bao, Anxo Perez, and Javier Parapar. 2025. ReDSM5: A Reddit Dataset for DSM-5 Depression Detection. In Proceedings of the 34th ACM International Conference on Information and Knowledge Management (CIKM ’25), November 10–14, 2025, Seoul, Republic of Korea. ACM, New York, NY, USA, 5 pages. https://doi.org/10.1145/3746252.3761610979-8-4007-2040-6https://hdl.handle.net/2183/48523Presented at: CIKM '25: The 34th ACM International Conference on Information and Knowledge Management, Seoul, Republic of Korea, November 10 - 14, 2025 © Autores | ACM 2025. This is the author's version of the work. It is posted here for your personal use. Not for redistribution. The definitive Version of Record was published in CIKM '25: Proceedings of the 34th ACM International Conference on Information and Knowledge Management, https://doi.org/10.1145/3746252.3761610[Abstract]: Depression is a pervasive mental health condition that affects hundreds of millions of individuals worldwide, yet many cases remain undiagnosed due to barriers in traditional clinical access and pervasive stigma. Social media platforms, and Reddit in particular, offer rich, user-generated narratives that can reveal early signs of depressive symptomatology. However, existing computational approaches often label entire posts simply as depressed or not depressed, without linking language to specific criteria from the DSM-5, the standard clinical framework for diagnosing depression. This limits both clinical relevance and interpretability. To address this gap, we introduce ReDSM5, a novel Reddit corpus comprising 1484 long-form posts, each exhaustively annotated at the sentence level by a licensed psychologist for the nine DSM-5 depression symptoms. For each label, the annotator also provides a concise clinical rationale grounded in DSM-5 methodology. We conduct an exploratory analysis of the collection, examining lexical, syntactic, and emotional patterns that characterize symptom expression in social media narratives. Compared to prior resources, ReDSM5 uniquely combines symptom-specific supervision with expert explanations, facilitating the development of models that not only detect depression but also generate human-interpretable reasoning. We establish baseline benchmarks for both multi-label symptom classification and explanation generation, providing reference results for future research on detection and interpretability.eng© 2025Depression symptom detectionMental healthDSM-5Social mediaHealth informaticsNLPLanguage resourcesconference outputopen access10.1145/3746252.376161