一种改进后的绝对关联度模型，属于灰色关联度的一种。-Absolute correlation degree model is a kind of improved absolute correlation degree model, is a kind of grey correlation degree.

4种灰色关联度，包括邓氏关联度，绝对关联度等4种关联度模型联度模型。-Four kinds of grey correlation degree, including representing the correlation degree, absolute correlation degree and so on four kind of relational model coupling degree model