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EVOL-RL method enhances language models without labels

Researchers have developed EVOL-RL, a novel method for improving language models without relying on external labels. This approach addresses the issue of "selection-induced diversity collapse," where self-selection can narrow the model's response pool. EVOL-RL balances selection and variation by using majority voting for stable selection and embedding-based novelty for refining credit, while entropy regularization and asymmetric clipping help maintain diverse rollouts. Experiments show EVOL-RL significantly improves performance on tasks like the AIME24 and AIME25 math competitions, outperforming baseline methods. AI

IMPACT This method could enable more efficient LLM training by reducing reliance on labeled data, potentially accelerating development cycles.

RANK_REASON The cluster contains an arXiv paper detailing a new method for evolving language models. [lever_c_demoted from research: ic=1 ai=1.0]

Read on arXiv cs.CL →

AI-generated summary · Google Gemini · from 1 sources. How we write summaries →

EVOL-RL method enhances language models without labels

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The cluster contains an arXiv paper detailing a new method for evolving language models. [lever_c_demoted from research: ic=1 ai=1.0]
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COVERAGE [1]

  1. arXiv cs.CL TIER_1 English(EN) · Yujun Zhou, Zhenwen Liang, Haolin Liu, Wenhao Yu, Kishan Panaganti, Linfeng Song, Dian Yu, Xiangliang Zhang, Haitao Mi, Dong Yu ·

    Evolving Language Models without Labels: Majority Drives Selection, Novelty Promotes Variation

    arXiv:2509.15194v4 Announce Type: replace-cross Abstract: Large language models (LLMs) can improve through reinforcement learning with verifiable rewards (RLVR), but many settings lack reference answers or external verifiers. Label-free self-improvement instead constructs trainin…