Henry Kautz noted that accuracy is “really only one dimension we care about in theory and in practice.” Others, he said, include how much energy is used, how much data is required and how much skilled human effort is needed for A.I. technology to work.

A more multidimensional view, Mr. Kautz added, could help level the playing field between academic researchers and computer scientists at the big tech companies, if research projects relied less on raw computing firepower.

Read more at https://www.nytimes.com/2019/09/26/technology/ai-computer-expense.html