Papers › Counterfactual Explanations for Natural Language Interfaces

Counterfactual Explanations for Natural Language Interfaces

27 Apr 2022ACL 2022 5arXiv:2204.13192archive 2025-07-28

George Tolkachev, Stephen Mell, Steve Zdancewic, Osbert Bastani

A key challenge facing natural language interfaces is enabling users to understand the capabilities of the underlying system. We propose a novel approach for generating explanations of a natural language interface based on semantic parsing. We focus on counterfactual explanations, which are post-hoc explanations that describe to the user how they could have minimally modified their utterance to achieve their desired goal. In particular, the user provides an utterance along with a demonstration of their desired goal; then, our algorithm synthesizes a paraphrase of their utterance that is guaranteed to achieve their goal. In two user studies, we demonstrate that our approach substantially improves user performance, and that it generates explanations that more closely match the user's intent compared to two ablations.

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