Comment on Google Correlate - DrawComments−daenz13yThe whitepaper describes an approximate nearest neighbor algorithm, but I thought this would use some form of signal decomposition...Discrete Cosine Transform or Fourier Transform.−oakwhiz13yIf I recall correctly, that only works on periodic signals, and not all the Google keyword trends are periodic.
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The whitepaper describes an approximate nearest neighbor algorithm, but I thought this would use some form of signal decomposition...Discrete Cosine Transform or Fourier Transform.
If I recall correctly, that only works on periodic signals, and not all the Google keyword trends are periodic.