Inspection¶

InspectionMatrix is a repeated 2-player inspection game implemented in masa.envs.multiagent.matrix.inspection.

Overview¶

• Class: InspectionMatrix
• Metadata name: inspection_matrix_v0
• Agents: player_0 (inspector), player_1 (inspectee)
• Actions: player_0: NotInspect=0, Inspect=1 player_1: Comply=0, Violate=1
• Default parameters: b=5, f=10, c=2, h=4, v=3

The stage game is:

• NotInspect, Comply -> (0, 0)
• NotInspect, Violate -> (-h, b)
• Inspect, Comply -> (-c, 0)
• Inspect, Violate -> (v-c, -f)

Safety Semantics¶

The unsafe event is an undetected violation, corresponding to NotInspect, Violate. Its label_fn emits undetected_violation and unsafe, and the default cost_fn assigns binary cost 1 in that case.

Observation Channels¶

Observations are binary channels representing the previous actions and whether the last round contained an undetected violation:

• inspector_notinspect
• inspector_inspect
• inspectee_comply
• inspectee_violate
• undetected_violation