Generative and Nonparametric Approaches for Conditional Distribution Estimation: Methods, Perspectives, and Comparative Evaluations. - Yen-Shiu Chin; Zhi-Yu Jou; Toshinari Morimoto; Chia-Tse Wang; Ming-Chung Chang; Tso-Jung Yen; Su-Yun Huang; Tailen Hsing (CoRR, 2026)