文章目录 Terminology Terminology st : stateot : observationat : action π θ ( a t ∣ o t ) \pi_\theta (a_t | o_t) πθ(at∣ot) : policy π θ ( a t ∣ s t ) \pi_\theta (a_t | s_t) πθ(at∣st) : policy (fully observed) Observation result from states.