MURFREESBORO, Tenn. — As the model race car drove in fits and starts along the mock road course on the MTSU Science Building Atrium floor, an MTSU data science team member had to frequently pick it up and redirect it to stay on the roadway.Not at all what the team planned, yet it was a problem that flummoxed all five teams who had spent the past two months dabbling in the increasingly important field of machine learning. It was part of a friendly competition of autonomously driven mod ...