We therefore also evaluate models defined as a weighted average of L 0 and each of L 1 and L 2 , as well as an "ensemble" model that combines all of these agents.
we consider the following blends of neural base models and pragmatic models, with L i abbreviating L i (t | u, C; θ, φ) for convenience: The hyperparameters in the exponents allow tuning the blend of each pair of models-e.g., overriding the neural model with the pragmatic reasoning in L b .