Study on the absolute grey incidence model of an interval grey number sequence

The essence of traditional incidence model is incidence analysis based on the certain real, which can not handle incidence analysis among uncertain number sequences. This article gives a calculation model of grey absolute incidence degree between uncertainty sequence data based on interval grey number expression. The model can analyze the incidence degree of two interval grey sequences groups which have certain boundary and the scope but is uncertain. It is concluded that, the absolute degree of grey incidence with interval grey number is bounded interval grey number. It meets normalization, even symmetry, approach and global property.