TabBridge: Bridging Structure and Context for Accurate Table Reasoning

Jeongwoo Lee, Eunsoo Lee, Jihie Kim


Abstract
Table reasoning remains challenging for Large Language Models (LLMs) as it requires integrating structured tabular information with natural language questions. Previous SQL-based approaches rely on surface-level alignment between question keywords and column headers, often generating queries with spurious or missing column mappings. We introduce TabBridge, a framework that incorporates both structural and contextual information for accurate table reasoning. TabBridge first generates a unified textual representation called Table Specification (TabSpec), preserving the structural information through row and column analysis. In order to ensure accuracy and consistency, we also employ a reconstruction-based evaluation mechanism to verify and refine the generated TabSpec. TabSpec is subsequently used to generate SQL aligned with the contextual intent of the question, enabling accurate interpretation of column semantics that are often overlooked by previous approaches.Across three public benchmarks, TabBridge shows consistent improvements over previous SQL-based methods, achieving 73.94% accuracy on WikiTableQuestions (+5.3 pp over the previous state of the art). TabBridge also demonstrates robust performance across diverse LLM backbones, confirming its generalizability across model architectures. Our code is available at https://github.com/raylee0519/TabBridge.
Anthology ID:
2026.surgellm-1.14
Volume:
Proceedings of the First Workshop on Structured Understanding, Retrieval, and Generation in the LLM Era (SURGeLLM 2026)
Month:
July
Year:
2026
Address:
San Diego, California, United States
Editors:
Vivek Gupta, Kaize Ding, Harsha Kokel, Yue Zhao, Amit Agarwal, Yu Wang, Michael Glass, Yu Zhang, Kavitha Srinivas, Xiusi Chen, Oktie Hassanzadeh, Qi Zhu, Shuaichen Chang, Yuan Luo
Venues:
SURGeLLM | WS
SIG:
Publisher:
Association for Computational Linguistics
Note:
Pages:
219–240
Language:
URL:
https://preview.aclanthology.org/ingest-acl-workshops/2026.surgellm-1.14/
DOI:
Bibkey:
Cite (ACL):
Jeongwoo Lee, Eunsoo Lee, and Jihie Kim. 2026. TabBridge: Bridging Structure and Context for Accurate Table Reasoning. In Proceedings of the First Workshop on Structured Understanding, Retrieval, and Generation in the LLM Era (SURGeLLM 2026), pages 219–240, San Diego, California, United States. Association for Computational Linguistics.
Cite (Informal):
TabBridge: Bridging Structure and Context for Accurate Table Reasoning (Lee et al., SURGeLLM 2026)
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PDF:
https://preview.aclanthology.org/ingest-acl-workshops/2026.surgellm-1.14.pdf