视频选题榜 2026-09-25 https://arxiv.org/abs/2609.25963 · GeoPair: Geometry-Preserving Cross-Layer Factorization for Training-Free Transformer Compression · 跨层共享别只看相邻,按几何兼容配对 + 共享字典分解,训练-free 零反传微调成本 · round=R1