President Donald Trump hasn't said much, if anything, about artificial intelligence, but his administration is warming up to the idea of investing more in the technology and finding ways to build new skills for the U.S. workers it replaces.

"The Trump administration will ensure our great nation remains the global leader in AI," the president's technology adviser, Michael Kratsios, said to a gathering of corporate leaders Thursday.

Kratsios was hosting the Trump White House's first summit on artificial intelligence, convening tech giants such as Google, Amazon, Facebook and Microsoft as well as...