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.
Thanks