https://yukar.icu/tags/contrastive-learning/Recent content in Contrastive Learning on Yukari's BlogHugozh-cnSun, 05 Jul 2026 00:00:00 +0000https://yukar.icu/posts/vlm/siglip2/siglip2-loss-function-analysis/Sun, 05 Jul 2026 00:00:00 +0000https://yukar.icu/posts/vlm/siglip2/siglip2-loss-function-analysis/从 modeling_siglip2.py 源码出发，完整推导 Siglip2 的 Sigmoid Contrastive Loss。 与 CLIP 的 Softmax CE Loss 逐行对比，解释可学习温度与偏置的设计动机。