This paper presented a new quick density-based approach to detect outliers,called outlier detecting based on Z curve （ ZOD）. According to the process of constructing of Z curves,divided space into grids of equal size,and sorted the gird along direction of the curve extends,mapped the point on the grid to one-dimensional space,thus overcame the ＂dimension disaster＂ shortcomings of algorithm based on grid. The algorithm indicated the degree of outlier with the local deviate factor,so identified the outlier exactly and the precision was measur...
