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S$^2$R: Teaching LLMs to Self-verify and Self-correct via Reinforcement Learning

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arxiv 2502.12853 v1 pith:7KMPHQDO submitted 2025-02-18 cs.CL cs.LG

classification cs.CLcs.LG
keywords datamodelsllmsabilitiesbaseduringeffectivenessinference
verification ladder T0 review T1 audit T2 compute T3 formal
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abstract

Recent studies have demonstrated the effectiveness of LLM test-time scaling. However, existing approaches to incentivize LLMs' deep thinking abilities generally require large-scale data or significant training efforts. Meanwhile, it remains unclear how to improve the thinking abilities of less powerful base models. In this work, we introduce S$^2$R, an efficient framework that enhances LLM reasoning by teaching models to self-verify and self-correct during inference. Specifically, we first initialize LLMs with iterative self-verification and self-correction behaviors through supervised fine-tuning on carefully curated data. The self-verification and self-correction skills are then further strengthened by both outcome-level and process-level reinforcement learning, with minimized resource requirements, enabling the model to adaptively refine its reasoning process during inference. Our results demonstrate that, with only 3.1k self-verifying and self-correcting behavior initialization samples, Qwen2.5-math-7B achieves an accuracy improvement from 51.0\% to 81.6\%, outperforming models trained on an equivalent amount of long-CoT distilled data. Extensive experiments and analysis based on three base models across both in-domain and out-of-domain benchmarks validate the effectiveness of S$^2$R. Our code and data are available at https://github.com/NineAbyss/S2R.

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Cited by 5 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. CogDual: Enhancing Dual Cognition of LLMs via Reinforcement Learning with Implicit Rule-Based Rewards

    cs.CL 2025-07 conditional novelty 6.0 of 10

    A role-playing LLM that reasons about the scene and its own state before responding, trained with two semantic rewards, beats stronger baselines on role-play benchmarks.

  2. Spectral Origins of the Self-Correction Blind Spot in Autoregressive Generation

    cs.LG 2026-07 conditional novelty 5.5 of 10

    Self-correction blind spots in residual-stream autoregressive models arise iff the product of attention Jacobians has spectral radius ≥1, with a sharp marker threshold and RL coupling condition derived from that radius.

  3. SVSR: A Self-Verification and Self-Rectification Paradigm for Multimodal Reasoning

    cs.AI 2026-04 unverdicted novelty 5.0 of 10

    SVSR trains multimodal models to verify and correct their own reasoning using a preference dataset, supervised fine-tuning, and semi-online DPO with a teacher model.

  4. Towards Sparse Video Understanding and Reasoning

    cs.CV 2026-02 conditional novelty 5.0 of 10

    A video-QA agent that carries only a structured text summary between rounds beats dense-frame baselines on accuracy while using a handful of frames per video.

  5. Self-Reflective Generation at Test Time

    cs.CL 2025-10 conditional novelty 5.0 of 10

    SRGen improves LLM math reasoning by detecting high-entropy tokens and injecting a small corrected vector into the hidden state at those points during decoding, without training.

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