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paperarXivTrust 82 · PrimaryPublished 2d agoLive · 19h ago

Diffusion-GR2: Diffusion Generative Reasoning Re-ranker

Generative reasoning re-rankers achieve strong recommendation accuracy by emitting a chain-of-thought before re-ordering a candidate list, but they are slow at inference: an autoregressive (AR) decoder spends one sequential forward pass per reasoning token, and the reasoning trace far exceeds the ranking it produces. To reduce this cost, block-diffusion language models decode many positions in parallel over a few denoising steps and are substantially faster, yet naively converting an AR re-ranker into one opens two accuracy gaps: (1) a structural gap: answer positions are denoised in parallel

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  • Linked via arxiv authorZhuoxuan Zhang

    Diffusion-GR2: Diffusion Generative Reasoning Re-ranker

  • Linked via arxiv authorKangqi Ni

    Diffusion-GR2: Diffusion Generative Reasoning Re-ranker

  • Linked via arxiv authorYuhang Chen

    Diffusion-GR2: Diffusion Generative Reasoning Re-ranker

  • Linked via arxiv authorMingfu Liang

    Diffusion-GR2: Diffusion Generative Reasoning Re-ranker

  • Linked via arxiv authorXiaohan Wei

    Diffusion-GR2: Diffusion Generative Reasoning Re-ranker

  • Linked via arxiv authorYunchen Pu

    Diffusion-GR2: Diffusion Generative Reasoning Re-ranker

  • Linked via arxiv authorFei Tian

    Diffusion-GR2: Diffusion Generative Reasoning Re-ranker

  • Linked via arxiv authorChonglin Sun

    Diffusion-GR2: Diffusion Generative Reasoning Re-ranker

  • Linked via arxiv authorFrank Shyu

    Diffusion-GR2: Diffusion Generative Reasoning Re-ranker

  • Linked via arxiv authorAdam

    Diffusion-GR2: Diffusion Generative Reasoning Re-ranker

  • Linked via arxiv authorSong

    Diffusion-GR2: Diffusion Generative Reasoning Re-ranker

  • Linked via arxiv authorSandeep Pandey

    Diffusion-GR2: Diffusion Generative Reasoning Re-ranker

  • Linked via arxiv authorLuke Simon

    Diffusion-GR2: Diffusion Generative Reasoning Re-ranker

  • Linked via arxiv authorTianlong Chen

    Diffusion-GR2: Diffusion Generative Reasoning Re-ranker

  • Linked via arxiv authorXi Liu

    Diffusion-GR2: Diffusion Generative Reasoning Re-ranker

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