Algorithms for matrix multiplication
Algorithms for matrix multiplication
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矩阵乘法算法
DOI:
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发表时间:
1970
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通讯作者:
R. Brent
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文献类型:
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作者:
R. Brent
Strassen's and Winograd's algorithms for matrix multiplication are investigated and compared with the normal algorithm. Floating-point error bounds are obtained, and it is shown that scaling is essential for numerical accuracy using Winograd's method. In practical cases Winograd's method appears to be slightly faster than the other two methods, but the gain is, at most, about 20%. Finally, an attempt to generalize Strassen's method is described.