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  1. Spark
  2. SPARK-8473

Documentation for DCT

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    • Documentation
    • Status: Resolved
    • Minor
    • Resolution: Fixed
    • None
    • 1.5.0
    • ML
    • None

    Description

      Documentation detailing the DCT feature transformer needs to be provided. In particular, we need to:

      • Describe how the implementation used scales the transform such that the representing matrix for the transform is unitary
      • Document how the frequency bins are arranged (e.g. index 0 corresponds to the DC offset). In MATLAB terminology, the implementation does not perform a fftshift after transforming.

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              fliang Feynman Liang
              fliang Feynman Liang
              Xiangrui Meng Xiangrui Meng
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                Updated:
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