Point Spread Function Approximation of High Rank Hessians with Locally Supported Non-Negative Integral Kernels
SIAM JOURNAL ON SCIENTIFIC COMPUTING（2024）
关键词
data scalability,Hessian,hierarchical matrix,high-rank,impulse response,local translation invariance,matrix-free,moment methods,operator approximation,PDE-constrained inverse problems,point spread function,preconditioning,product convolution
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