arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2406.09003cs.CVcs.LG
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通过渐进式中间模态生成增强跨模态微调

Enhancing Cross-Modal Fine-Tuning with Gradually Intermediate Modality Generation

Beijing Institute of Technology(北京理工大学);University of Illinois Urbana-Champaign(伊利诺伊大学厄巴纳-香槟分校);Interactive Entertainment Group, Tencent(腾讯互动娱乐集团)

Lincan Cai, Shuang Li, Wenxuan Ma, Jingxuan Kang, Binhui Xie, Zixun Sun, Chengwei Zhu

AI总结:

针对专业模态差异大、标注少导致的预训练模型迁移难题,提出端到端 PaRe,通过门控选块与 Patch Replacement 渐进生成由易到难的中间模态,在十多种模态的三个基准上取得优于现有方法的性能。

摘要:

大规模预训练模型已被证明在处理文本和图像等数据密集型模态时极具价值。然而,由于显著的模态差异和标注数据稀缺,将这些模型微调用于蛋白质序列和宇宙射线等某些专业模态存在挑战。本文提出一种端到端方法 PaRe,用于增强跨模态微调,旨在将大规模预训练模型迁移到各种目标模态。PaRe 采用门控机制从源数据和目标数据中选择关键 patch。通过与模态无关的 Patch Replacement(块替换)方案,这些 patch 被保留并组合,以构建从易到难、数据丰富的中间模态。借助渐进式中间模态生成,我们不仅能够有效弥合模态差距,增强跨模态微调的稳定性和可迁移性,还能利用丰富的中间模态数据应对目标模态数据有限的挑战。与手工设计、通用、任务特定以及最先进的跨模态微调方法相比,PaRe 在三个具有挑战性的基准上展现出优越性能,这些基准涵盖十多种模态。

英文摘要:

Large-scale pretrained models have proven immensely valuable in handling data-intensive modalities like text and image. However, fine-tuning these models for certain specialized modalities, such as protein sequence and cosmic ray, poses challenges due to the significant modality discrepancy and scarcity of labeled data. In this paper, we propose an end-to-end method, PaRe, to enhance cross-modal fine-tuning, aiming to transfer a large-scale pretrained model to various target modalities. PaRe employs a gating mechanism to select key patches from both source and target data. Through a modality-agnostic Patch Replacement scheme, these patches are preserved and combined to construct data-rich intermediate modalities ranging from easy to hard. By gradually intermediate modality generation, we can not only effectively bridge the modality gap to enhance stability and transferability of cross-modal fine-tuning, but also address the challenge of limited data in the target modality by leveraging enriched intermediate modality data. Compared with hand-designed, general-purpose, task-specific, and state-of-the-art cross-modal fine-tuning approaches, PaRe demonstrates superior performance across three challenging benchmarks, encompassing more than ten modalities.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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