Vessel Anomaly Detection

Illegal activity at sea has a small vocabulary of behaviours. A transponder switches off just before entering a closed fishing area and back on after leaving it. A reported position drifts somewhere the vessel physically cannot be. Two ships slow, converge and sit together for hours in open water. A vessel loiters at the edge of a jurisdiction. None of these is proof of anything, and all of them are worth a look.

The service watches for that vocabulary across the fused traffic picture and produces prioritised, explained alerts: what pattern triggered, where, when, and what corroborating imagery exists. Explanation matters more than detection here, so every alert carries the evidence that produced it.