SQUAB: Evaluating LLM robustness to Ambiguous and Unanswerable Questions in Semantic Parsing

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Bibliographic Details
Title: SQUAB: Evaluating LLM robustness to Ambiguous and Unanswerable Questions in Semantic Parsing
Authors: Papicchio, Simone, Cagliero, Luca, Papotti, Paolo
Contributors: Papicchio, Simone, Cagliero, Luca, Papotti, Paolo
Publisher Information: Association for Computational Linguistics
Publication Year: 2025
Collection: PORTO@iris (Publications Open Repository TOrino - Politecnico di Torino)
Subject Terms: Text2SQL, Ambiguity, Dynamic Benchmark, Industry, Unanswerable, Text-to-SQL
Description: Large Language Models (LLMs) have demonstrated robust performance in Semantic Parsing (SP) for well-defined queries with unambiguous intent and answerable responses. However, practical user questions frequently deviate from these ideal conditions, challenging the applicability of existing benchmarks. To address this issue, we introduce SQUAB, an automatic dataset generator of Ambiguous and Unanswerable questions. SQUAB generates complex, annotated SP tests using a blend of SQL and LLM capabilities. Results show that SQUAB reduces test generation costs by up to 99% compared to human-based solutions while aligning with real-world question patterns. Furthermore, these tests challenge LLM performance while revealing disparities between public and proprietary datasets. This highlights the need for a dynamic, automatic dataset generator as SQUAB. The code is designed for user extension to accommodate new ambiguous and unanswerable patterns and is available at https://github.com/spapicchio/squab.
Document Type: conference object
File Description: ELETTRONICO
Language: English
Relation: ispartofbook:Proceedings of the 2025 Conference on Empirical Methods in Natural Language Processing; Conference on Empirical Methods in Natural Language Processing; firstpage:17937; lastpage:17957; numberofpages:21; https://hdl.handle.net/11583/3005408
DOI: 10.18653/v1/2025.emnlp-main.906
Availability: https://hdl.handle.net/11583/3005408
https://doi.org/10.18653/v1/2025.emnlp-main.906
https://aclanthology.org/2025.emnlp-main.906/
Rights: info:eu-repo/semantics/openAccess ; license:Creative commons ; license uri:http://creativecommons.org/licenses/by/4.0/
Accession Number: edsbas.B3CB5026
Database: BASE
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