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A comment on Fast Differentiable Sorting and Ranking. Parent comment

Re:Fast Differentiable Sorting and Ranking by Mmrnmhrm on Sunday February 23, 2020 @01:24AM (#22395460)
While the roots have been known for a long time, my impression is that the key paper that started this line of thought was Marco Cuturi's NIPS 2013 paper "Sinkhorn Distances", which is, IMHO, a very nice read.
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Re:Fast Differentiable Sorting and Ranking by kxyvr on Sunday February 23, 2020 @01:50AM (#22395519)
Certainly I may be missing something, but it seems like the advance in this series of papers is that they figured out a way to calculate a differentiable solution to the sorting problem quickly, whereas it was already known that the a differentiable solution already existed, no?
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