Aggregating data from varied data systems presents the biggest challenge to the Navy's foray into artificial intelligence, the chief of naval research said last week. Rear Adm. David Hahn said "fragmented" data presents hurdles as the Navy explores how to utilize artificial intelligence. "So that's at the end of the day, probably our biggest challenge is aggregating the relevant data into a space where we can work on it in a meaningful way to get some mission effective results," Hahn...