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How would you represent a tensor in code, if not by using a multidimensional array? Ok, you could use a flat array and index into it depending on the dimension
by esperent 4y ago
How would you represent a tensor in code, if not by using a multidimensional array?
Ok, you could use a flat array and index into it depending on the dimensions of the tensor (as is often done for matrices), but that's really just a way of saving ram or cpu cycles rather than a different representation.
- boulos 4y agoThe point is that just because something can be represented as the result of malloc(), doesn't make the data structure the same as that thing. That is, what is: float* x = malloc(width*height*channels*sizeof(float)) Is x an "Image"? Is x a "tensor"? Is x a "raster"? For tensors specifically, if x is not itself the product of vector spaces, then it's not a tensor. tl;dr: While every rank-N tensor can be represented with multidimensional arrays, not all multidimensional arrays are rank-N tensors.
- sudosysgen 4y agoThey are isomorphic. That's as close as equal you're ever gonna get - it's turtles all the way down.