| """The operating point, shared by the runtime, the export check and the scorecard so they never disagree. |
| |
| A pair is hostile exactly when its hostility probability reaches tau. Then the act is the most likely hostile class |
| (or a demand, at high intensity, when demand is the top class). Otherwise it is the most likely non-hostile class, and |
| a demand is held below high intensity. So the tags the meters receive are hostile exactly when the scorecard says so. |
| """ |
| from __future__ import annotations |
|
|
| from contracts.schemas.line_tags import ACTS, HOSTILE_ACTS |
|
|
|
|
| def decide(pa, p_host: float, tau: float, intensity: str) -> tuple[str, str]: |
| """pa: probabilities over ACTS; intensity: the intensity head's top class. Returns (act, intensity).""" |
| order = sorted(range(len(ACTS)), key=lambda i: -float(pa[i])) |
| if p_host >= tau: |
| if ACTS[order[0]] == "demand": |
| return "demand", "high" |
| act = next(ACTS[i] for i in order if ACTS[i] in HOSTILE_ACTS) |
| return act, intensity |
| act = next(ACTS[i] for i in order if ACTS[i] not in HOSTILE_ACTS) |
| if act == "demand" and intensity == "high": |
| intensity = "medium" |
| return act, "low" if act == "none" else intensity |
|
|
|
|
| def summed_hostility(pa) -> float: |
| """For models without a hostility head: the probability mass on the hostile classes.""" |
| return float(sum(float(pa[ACTS.index(a)]) for a in HOSTILE_ACTS)) |
|
|
