Assigning rewards at token-level will ease the feedback task and allow the semantic parser to learn from partially correct queries.
assuming the underlying policy can decompose over tokens, a token level (DPM+T) reward objective can be defined: Analogously, we can define an objective that combines the token-level rewards and the minibatched reweighting (DPM+T+OSL): Gradients for the DPM+T and DPM+T+OSL objectives are given in Table 1.