الحقائق وعدم اليقين والامتناع

facts = {"policy-lab-v1": {"refund_days": 14}}
def supported(candidate):
    source = facts.get(candidate["source_id"])
    return source is not None and source["refund_days"] == candidate["refund_days"]
print(supported({"source_id": "policy-lab-v1", "refund_days": 14}))
print(supported({"source_id": "policy-lab-v1", "refund_days": 30}))
print(supported({"source_id": "invented-source", "refund_days": 14}))

True
False
False

يدعم التطابق بمرجع موجود فقط، وليس الفحص تحقق حقائق لغويا عاما.

predictions = [(0.9, 1), (0.9, 0)]
mean_confidence = sum(p for p, label in predictions) / len(predictions)
accuracy = sum(label for p, label in predictions) / len(predictions)
brier = sum((p - label) ** 2 for p, label in predictions) / len(predictions)
print(round(mean_confidence, 2), round(accuracy, 2), round(brier, 2))
print("synthetic two-case illustration only")

0.9 0.5 0.41
synthetic two-case illustration only

المتوسط 0.9 والدقة 0.5 وBrier0.41 لحالتين مختلقتين، لا دليل معايرة لنظام فعلي.