This paper uses the theory of causal graphica l model and its identifiability to reply how big an effect that if occupying the s eats is permitted do to the using rate of the seat.

• 利用因果图模型及其可识别性理论对占座效应 ；即占座行为对座位使用率的影响进行了建模 .；并利用这一模型对实际例子中的占座效应进行了分析；最终得出占座行为对实例中座位使用率的影响程度