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Quote: a few coefficients of the discrete Fourier transform capture most of the energy in pink (music), brown (stock), and black (ocean) noise
Topic:
data reduction
Quotation Skeleton
Data Reduction based on the [discrete Fourier transform (DFT)] works by … the time series. For time series modeled by … [e.g., music], brown [e.g., stock prices], and black [e.g., ocean levels] noises, such a representation will … real time series means that the energy contained … Google-1 Google-2
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Topic: data reduction (9 items)