First, do no harm: Breaking suicidogenic echo chambers in media recommendation
Recommender systems generally optimises user engagement, but this approach is dangerous in mental health contexts. When vulnerable users show signs of suicidal ideation, standard algorithms often trap them in echo chambers of harmful content, worsening their psychological state. In response, we introduce RankAid, a re-ranking method that prioritises clinical safety alongside predictive relevance. It works as an add-on layer to existing models: it penalises risky items and boosts therapeutic content depending on the user's current level of vulnerability. We evaluated this approach using the MovieLens 1M dataset, where items were semantically annotated for clinical risk and therapeutic valu...
| Authors | Alberto Díaz-Álvarez, Raúl Lara-Cabrera, Fernando Ortega-Requena et al. |
|---|---|
| Primary category | cs.IR |
| Published | 24 May 2026 |
| Last updated at source | 24 May 2026 |
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