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LLaMA-Berry: Pairwise Optimization for O1-like Olympiad-Level Mathematical Reasoning

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arxiv 2410.02884 v2 pith:MWTT4MTE submitted 2024-10-03 cs.AI cs.CL

classification cs.AIcs.CL
keywords mathematicalpairwisereasoningframeworkmodelsearchadvancedbenchmarks
verification ladder T0 review T1 audit T2 compute T3 formal
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This paper presents an advanced mathematical problem-solving framework, LLaMA-Berry, for enhancing the mathematical reasoning ability of Large Language Models (LLMs). The framework combines Monte Carlo Tree Search (MCTS) with iterative Self-Refine to optimize the reasoning path and utilizes a pairwise reward model to evaluate different paths globally. By leveraging the self-critic and rewriting capabilities of LLMs, Self-Refine applied to MCTS (SR-MCTS) overcomes the inefficiencies and limitations of conventional step-wise and greedy search algorithms by fostering a more efficient exploration of solution spaces. Pairwise Preference Reward Model~(PPRM), inspired by Reinforcement Learning from Human Feedback (RLHF), is then used to model pairwise preferences between solutions, utilizing an Enhanced Borda Count (EBC) method to synthesize these preferences into a global ranking score to find better answers. This approach addresses the challenges of scoring variability and non-independent distributions in mathematical reasoning tasks. The framework has been tested on general and advanced benchmarks, showing superior performance in terms of search efficiency and problem-solving capability compared to existing methods like ToT and rStar, particularly in complex Olympiad-level benchmarks, including GPQA, AIME24 and AMC23.

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Cited by 15 Pith papers

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

  1. More Thinking, Less Seeing? Assessing Amplified Hallucination in Multimodal Reasoning Models

    cs.CL 2025-05 conditional novelty 7.0 of 10

    Reasoning models trade visual grounding for language-based inference, and this paper measures that trade-off with a new metric and benchmark.

  2. MIRAGE: Assessing Hallucination in Multimodal Reasoning Chains of MLLM

    cs.CV 2025-05 conditional novelty 6.0 of 10

    MIRAGE is a benchmark that separates reasoning hallucinations from perception errors in multimodal LLMs, and Logos is a curriculum reinforcement fine-tuning method that reduces logical hallucinations.

  3. EquivPruner: Boosting Efficiency and Quality in LLM-Based Search via Action Pruning

    cs.AI 2025-05 conditional novelty 6.0 of 10

    EquivPruner detects mathematically equivalent reasoning steps during LLM tree search and keeps only one per group, cutting token use by up to half on GSM8K and MATH-500 without hurting accuracy.

  4. Plan Then Action:High-Level Planning Guidance Reinforcement Learning for LLM Reasoning

    cs.AI 2025-10 conditional novelty 5.0 of 10

    A plan-then-reason SFT plus a plan-quality reward in GRPO improves math-reasoning accuracy by small but consistent margins over GRPO and DAPO.

  5. Boosting LLM's Molecular Structure Elucidation with Knowledge Enhanced Tree Search Reasoning

    cs.CL 2025-06 conditional novelty 5.0 of 10

    K-MSE adds a substructure knowledge base, a learned molecule-spectrum scorer, and Monte Carlo tree search, lifting LLM exact-match accuracy on MolPuzzle from 3.7% to 27.3% (GPT-4o-mini) and from 27.8% to 57.8% (GPT-4o).

  6. VReST: Enhancing Reasoning in Large Vision-Language Models through Tree Search and Self-Reward Mechanism

    cs.CV 2025-06 conditional novelty 5.0 of 10

    VReST combines Monte Carlo tree search with a self-reward signal inside a vision-language model to get higher accuracy than CoT, ToT, or voting baselines on MathVista, MathVision, and CharXiv, while spending several t...

  7. One Missing Piece for Open-Source Reasoning Models: A Dataset to Mitigate Cold-Starting Short CoT LLMs in RL

    cs.CL 2025-06 conditional novelty 5.0 of 10

    A pipeline converts short-CoT LLM outputs into o1-style long chain-of-thought rationales using 1K seed reasoning flows, and SFT on the resulting dataset improves downstream RLVR cold-start.

  8. Advancing Multimodal Reasoning via Reinforcement Learning with Cold Start

    cs.CL 2025-05 conditional novelty 5.0 of 10

    Using a two-stage SFT-plus-GRPO pipeline, the authors train 3B and 7B multimodal models that beat prior open-source models on four math reasoning benchmarks, while showing that reflective 'aha moment' text is not a re...

  9. Reward Model Generalization for Compute-Aware Test-Time Reasoning

    cs.LG 2025-05 reject novelty 5.0 of 10

    The paper claims PRM generalization error controls test-time compute efficiency and that the proposed CATS controller improves accuracy on MATH-500 and AIME24.

  10. TaoSR-AGRL: Adaptive Guided Reinforcement Learning Framework for E-commerce Search Relevance

    cs.IR 2025-10 conditional novelty 4.0 of 10

    TaoSR-AGRL improves e-commerce search relevance by combining dense rule-aware reward shaping with adaptive ground-truth-guided replay in GRPO, reporting gains on Taobao's private offline and online evaluations.

  11. A Comprehensive Survey on Trustworthiness in Reasoning with Large Language Models

    cs.CL 2025-09 conditional novelty 4.0 of 10

    A structured literature survey concluding that reasoning capabilities do not automatically make LLMs more trustworthy and can introduce new vulnerabilities in safety, robustness, and privacy.

  12. SELT: Self-Evaluation Tree Search for LLMs with Task Decomposition

    cs.CL 2025-06 reject novelty 4.0 of 10

    A self-evaluating MCTS variant with semantic clustering gives small, statistically untested accuracy gains over CoT on MMLU subsets and Seal-Tools.

  13. SIGMA: Search-Augmented On-Demand Knowledge Integration for Agentic Mathematical Reasoning

    cs.AI 2025-10 reject novelty 3.0 of 10

    SIGMA uses four specialized retrieval agents plus a moderator to improve math reasoning, reporting up to 7.4 absolute MATH500 points over Search-o1 at 1.5B scale.

  14. Building Task Bots with Self-learning for Enhanced Adaptability, Extensibility, and Factuality

    cs.CL 2025-08 conditional novelty 2.0 of 10

    A thesis that combines self-learning from dialog logs, schema-guided prompting, and self-aligned factuality to build task bots with minimal human intervention.

  15. A Survey on Large Language Models for Mathematical Reasoning

    cs.AI 2025-06 conditional novelty 1.0 of 10

    Recent advances in LLM mathematical reasoning are organized into comprehension and generation phases, covering methods from prompting to test-time scaling.

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