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EEG signal transformation #2

Description

@stefanches7

At the end, EEG signal can be represented as n*m matrix, where n is the number of channels in EEG helmet (64 or 128) and m is the number of taken discrete time points.
Usually, signals are being transformed to add information quotient/distropy to each feature (Physics specialists are welcome to tell more!). We might want to also pick one transformation method and see whether it helps our pipeline.
TODO

  • (newcomer suggested) Read https://doi.org/10.1101/787101 on tranformation before ICA
  • (newcomer suggested) Read about Discrete wavelet transformation
  • PIck transformation method
  • Evaluate compared to baseline (no transformation)

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