I started reading a few papers on Tensors. Right now I am reading a paper by Chi and Kolda called “On Tensors, Sparsity, and Nonnegative Factorizations”. I passed linear algebra and calculus courses. But I could not understand the proofs in this paper. Could any one suggest how to build the background? are there any online courses or books that could help?

I would appriciate any guidance.



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