Question: How does framework automatically chooses different curricula at the evolving learning process according to the learning status of the neural dialogue generation model?
Answer: The multi-curricula learning scheme is scheduled according to the model's performance on the validation set, where the scheduling mechanism acts as the policy $\pi $ interacting with the dialogue model to acquire the learning status $s$. The reward of the multi-curricula learning mechanism $m_t$ indicates how well the current dialogue model performs.