Zero-shot Multi-Domain Dialog State Tracking Using Descriptive Rules

17 Sep 2020  ·  Edgar Altszyler, Pablo Brusco, Nikoletta Basiou, John Byrnes, Dimitra Vergyri ·

In this work, we present a framework for incorporating descriptive logical rules in state-of-the-art neural networks, enabling them to learn how to handle unseen labels without the introduction of any new training data. The rules are integrated into existing networks without modifying their architecture, through an additional term in the network's loss function that penalizes states of the network that do not obey the designed rules. As a case of study, the framework is applied to an existing neural-based Dialog State Tracker. Our experiments demonstrate that the inclusion of logical rules allows the prediction of unseen labels, without deteriorating the predictive capacity of the original system.

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