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- Q3042818 subject Q7597810.
- Q3042818 subject Q8789007.
- Q3042818 abstract "In statistics and signal processing, the method of empirical orthogonal function (EOF) analysis is a decomposition of a signal or data set in terms of orthogonal basis functions which are determined from the data. It is the same as performing a principal components analysis on the data, except that the EOF method finds both time series and spatial patterns. The term is also interchangeable with the geographically weighted PCAs in geophysics.The i th basis function is chosen to be orthogonal to the basis functions from the first through i − 1, and to minimize the residual variance. That is, the basis functions are chosen to be different from each other, and to account for as much variance as possible.The method of EOF is similar in spirit to harmonic analysis, but harmonic analysis typically uses predetermined orthogonal functions, for example, sine and cosine functions at fixed frequencies. In some cases the two methods may yield essentially the same results.The basis functions are typically found by computing the eigenvectors of the covariance matrix of the data set. A more advanced technique is to form a kernel out of the data, using a fixed kernel. The basis functions from the eigenvectors of the kernel matrix are thus non-linear in the location of the data (see Mercer's theorem and the kernel trick for more information).".
- Q3042818 wikiPageExternalLink eofsvd.html.
- Q3042818 wikiPageExternalLink 86.4.815.
- Q3042818 wikiPageExternalLink 1520-0485(1984)014%3C0035%3AREOFAO%3E2.0.CO%3B2.
- Q3042818 wikiPageExternalLink notes.
- Q3042818 wikiPageExternalLink node87.html.
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- Q3042818 wikiPageWikiLink Q7597810.
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- Q3042818 wikiPageWikiLink Q876215.
- Q3042818 wikiPageWikiLink Q8789007.
- Q3042818 comment "In statistics and signal processing, the method of empirical orthogonal function (EOF) analysis is a decomposition of a signal or data set in terms of orthogonal basis functions which are determined from the data. It is the same as performing a principal components analysis on the data, except that the EOF method finds both time series and spatial patterns.".
- Q3042818 label "Empirical orthogonal functions".