Monitoring Sea Ice in Liaodong Bay of Bohai Sea during the Freezing Period of 2017/2018 Using Sentinel-2 Remote Sensing Data

Table 3

Classification accuracy statistics compared with ML and SVM.

	Seawater (%)	New ice (%)	Gray-white ice (%)	White ice (%)	Fast ice (%)	Total accuracy (%)	Kappa coefficient
New method	97.96	93.81	76.61	83.91	90.63	88.05	0.851
ML	77.55	50.52	60.48	93.1	95.83	74.30	0.679
SVM	96.94	75.26	76.61	82.76	93.75	84.66	0.808