STaR: Towards Cognitive Table Reasoning via Slow-Thinking Large Language Models

• URL: http://arxiv.org/abs/2511.11233v1
• Date: Fri, 14 Nov 2025 12:34:17 GMT
• Title: STaR: Towards Cognitive Table Reasoning via Slow-Thinking Large Language Models
• Authors: Huajian Zhang, Mingyue Cheng, Yucong Luo, Xiaoyu Tao,
• Abstract summary: We present STaR (slow-thinking for table reasoning), a new framework achieving cognitive table reasoning.<n> STaR explicitly modeling step-by-step thinking and uncertainty-aware inference.<n>Experiments on benchmarks demonstrate that STaR achieves superior performance and enhanced reasoning stability.
• Score: 12.745473719032026
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Table reasoning with the large language models (LLMs) is a fundamental path toward building intelligent systems that can understand and analyze over structured data. While recent progress has shown promising results, they still suffer from two key limitations: (i) the reasoning processes lack the depth and iterative refinement characteristic of human cognition; and (ii) the reasoning processes exhibit instability, which compromises their reliability in downstream applications. In this work, we present STaR (slow-thinking for table reasoning), a new framework achieving cognitive table reasoning, in which LLMs are equipped with slow-thinking capabilities by explicitly modeling step-by-step thinking and uncertainty-aware inference. During training, STaR employs two-stage difficulty-aware reinforcement learning (DRL), progressively learning from simple to complex queries under a composite reward. During inference, STaR performs trajectory-level uncertainty quantification by integrating token-level confidence and answer consistency, enabling selection of more credible reasoning paths. Extensive experiments on benchmarks demonstrate that STaR achieves superior performance and enhanced reasoning stability. Moreover, strong generalization over out-of-domain datasets further demonstrates STaR's potential as a reliable and cognitively inspired solution for table reasoning with LLMs.

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