Before revision:  In this paper, we pro-pose an approach to zero-shot learning (Xianet al., 2018) for ad-hoc retrieval models that relies on synthetic query generation . Crucially, the query generation system is trained on general domain data, but is applied to documents in the targeted domain.
After revision:  In this paper, we propose an approach to zero-shot learning (Xianet al., 2018) for ad-hoc retrieval models that relies on synthetic query generation . Crucially, the query generation system is trained on general domain data, but is applied to documents in the targeted domain.