Fig. 13From: Using location semantics to realize personalized road network location privacy protectionThe service quality of BLk-disturbance algorithm and the random false location generation algorithm. As shown in this figure, red solid circles represent generated dummies by BLk-disturbance, and blue triangle represent randomly generated dummies. The x- and y-axes represent the number of location semantic categories on each road and the relative distance difference, respectivelyBack to article page