Research on Precision Marketing Model of Tourism Industry Based on User’s Mobile Behavior Trajectory

Algorithm 1

	Step 1: one by one, scanning the location information point sequence in the user movement behavior track;
	Step 2: formula (5);
	Step 3: formula (6);
	Step 4: Set a threshold for corner , store the corner satisfying as a mutation point, and then divide the track segment according to the position information point of the corner. n is the number of sampling points, and the time complexity of the algorithm is .