基于轨迹划分的异常轨迹检测方法。首先采用两种分段粒度将每条轨迹分为若干子轨迹线段，然后，在基于距离的异常检测方法的基础上，引入调整系数的概念，采用密度与距离相结合的方法进行异常轨迹检测。 -Abnormal trajectory detection method based on trajectory partition.Firstly each trajectories should be divided into several substrajectories using two gr