Risk Prediction for Ship Encounter Situation Awareness Using Long Short-Term Memory Based Deep Learning on Intership Behaviors

Table 4

Confusion matrix under a prediction horizon of 30 seconds.

Risk level	L	LM	M	MH	H
L	903	7	8	15	18
LM	131	117	63	26	31
M	32	20	468	43	43
MH	18	15	62	449	78
H	16	13	32	82	1135
SUM	1100	172	633	615	1305
ACCURACY (%)	82	68	74	73	87