@AnimaAnandkumar @AlexVasilescu May not any "data matrix" be interpreted as suitably defined linear transform? Ditto "data tensor"?
What is the difference between a "data matrix" and a matrix, or a "data tensor" and a tensor? by @AlexVasilescu https://www.quora.com/What-is-the-difference-between-a-data-matrix-and-a-matrix-or-a-data-tensor-and-a-tensor/answer/Alex-Vasilescu-1?srid=JTww&share=d01e18a4 …
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@BatteryHorse Why do you think that a data matrix, D, is a linear transform? How is it a mapping from IR^N --> iR^M vector space?
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