Assessment of Ship-Overtaking Situation Based on Swarm Intelligence Improved KDE

Table 1

AIS data sample.

MMSI	Time	Longitude	Latitude	Course	Speed
200058337	2021-07-01 00 : 33 : 16	118.226127	24.174142	295.0	6.4
200058337	2021-07-01 00 : 48 : 46	118.198253	24.171768	263.0	5.8
200058337	2021-07-01 01 : 18 : 47	118.140987	24.158835	253.0	6.7
200058337	2021-07-01 01 : 35 : 16	118.110263	24.148270	249.0	6.7
200058337	2021-07-01 02 : 16 : 46	118.03285	24.123245	234.0	6.8
200058337	2021-07-01 02 : 17 : 00	118.032075	24.122727	234.2	6.7