A sweep-based SI-DSA solver for the RTE uses mild space augmentation and residual-driven subsampling to match full-rank accuracy while cutting memory and runtime even when the effective rank reaches 30-45 percent of full rank.
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Highly Efficient Rank-Adaptive Sweep-based SI-DSA for the Radiative Transfer Equation via Mild Space Augmentation
A sweep-based SI-DSA solver for the RTE uses mild space augmentation and residual-driven subsampling to match full-rank accuracy while cutting memory and runtime even when the effective rank reaches 30-45 percent of full rank.