Abstract: Grey relation analysis model is used to analyze the degree to which a factor affects the system. Negative grey relation model measures the relationship between reverse sequences. Considering the proximity of local changes and the trend of sequence development, the paper defines the relative change within the time domain and oscillation change between time intervals. So, a novel negative grey relation model is proposed both vertically and horizontally. In the end, we use the existing instance to verify the effectiveness of the model.  

Key words: The Relative Change, Reverse Sequences, Negative Grey Relation Model