Karhunen-Loeve decomposition in the presence of symmetry. I
Karhunen-Loeve decomposition in the presence of symmetry. I
复制标题
对称性存在下的 Karhunen-Loeve 分解。
DOI:
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发表时间:
1999
影响因子:
10.6
通讯作者:
R. Miranda
中科院分区:
文献类型:
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作者:
Brigitte Lahme;R. Miranda
The Karhunen-Loève (KL) decomposition is widely used for data which very often exhibit some symmetry, afforded by a group action. For a finite group, we derive an algorithm using group representation theory to reduce the cost of determining the KL basis. We demonstrate the technique on a Lorenz-type ODE system. For a compact group such as tori or SO(3,R) the method also applies, and we extend results to these cases. As a short example, we consider the circle group S(1).