• Text

Google Lifts Veil, a Little, Into Secretive Search Algorithm Changes

Search-engine giant says one in 10 queries (and some advertisements) will see improved results from algorithm change

The Federal Communications Commission and representatives of large technology companies debate a regulated future in the U.S. They speak at WSJ Tech Live.

MOUNTAIN VIEW, Calif.—Google rarely talks about its secretive search algorithm. This week, the tech giant took a stab at transparency, unveiling changes that it says will surface more accurate and intelligent responses to hundreds of millions of queries each day.

Top Google executives, in a media briefing Thursday, said they had harnessed advanced machine learning and mathematical modeling to produce better answers for complex search entries that often confound its current algorithm. They characterized the changes—under a...