From: A quantitative evaluation model of ancient military defense efficiency based on spatial strength—take Zhejiang of the Ming Dynasty as an example
Item
Information entropy value(e)
Information utility value(d)
Weighting factor(w)
Weighted Strength Value of Land
0.6775
0.3225
45.06%
Weighted Strength Value of Sea
0.6068
0.3932
54.94%