Fig. 5From: Automatic diagnosis of COVID-19 infection based on ontology reasoningNecessary and sufficient condition for the class “Suspected_Case.” ① represents “meets any one type of epidemiological history,” ② represents “meets any two types of clinical manifestations,” and ③ represents “meets all three types of clinical manifestations.” In short, (① and ②) or ③ is the condition to decide whether the target is a suspected case of COVID-19 infectionBack to article page