Liu H, Xu H, Yue C, Ma B. UN-DETR: Promoting Objectness Learning via Joint Supervision for Unknown Object Detection. AAAI [Internet]. 2025 Apr. 11 [cited 2026 May 13];39(5):5442-50. Available from: https://ojs.aaai.org/index.php/AAAI/article/view/32579