QURG: Question Rewriting Guided Context-Dependent Text-to-SQL Semantic Parsing
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Abstract (arXiv)
Context-dependent Text-to-SQL aims to translate multi-turn natural language questions into SQL queries. Despite various methods have exploited context-dependence information implicitly for contextual SQL parsing, there are few attempts to explicitly address the dependencies between current question and question context. This paper presents QURG, a novel Question Rewriting Guided approach to help the models achieve adequate contextual understanding. Specifically, we first train a question rewriting model to complete the current question based on question context, and convert them into a rewriting edit matrix. We further design a two-stream matrix encoder to jointly model the rewriting relations between question and context, and the schema linking relations between natural language and structured schema. Experimental results show that QURG significantly improves the performances on two large-scale context-dependent datasets SParC and CoSQL, especially for hard and long-turn questions.
Key facts. Cited by 1 paper in the map (data through 14 Oct 2026). Builds on 34 of its 45 references that are in the map. First posted on arXiv 11 May 2023.
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References · 34
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