Each data format represents how the input data is represented in memory. This is important as each machine learning application performs well for a particular data format and worse for others. Interchanging between various data formats and chosing the correct format is a major optimization technique. For example, TensorFlow is built around NHWC format while MKLDNN is built around NCHW data format.
Read this article to see the various types of data formats used in Machine Learning
There are four commonly used types of data formats:
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