3DGS2-TR: Scalable Second-Order Trust-Region Method for 3D Gaussian Splatting
3DGS2-TR: Scalable Second-Order Trust-Region Method for 3D Gaussian Splatting
Roger Hsiao, Yuchen Fang, Xiangru Huang, @ruilong_li, @HesamRabeti, @ZGojcic, Javad Lavaei, James Demmel, @Sophia_Shao_
tl;dr: Hutchinson’s method→Hessian matrix diagonals→second-order update; squared Hellinger distance→trust-region bounds
https://arxiv.org/abs/2602.00395
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