arXiv:2602.20223cs.LGcs.AI2026-02中稿 · CVPR被引 6

将表格模型扩展到多模态,统一处理表格与图像文本数据

MultiModalPFN: Extending Prior-Data Fitted Networks for Multimodal Tabular Learning

  • 用模态编码器+投影器统一处理表格与非表格数据
  • 在医疗和通用数据集上超越现有方法,显著提升多模态性能
  • 适合医疗、营销等含多种数据类型的场景使用

近期,TabPFN 作为表格数据的基础模型受到关注。然而,它难以融合图像、文本等异构模态,限制了在医疗、营销等领域的应用。为此,我们提出多模态先验数据拟合网络(MMPFN),将 TabPFN 扩展至统一处理表格与非表格模态。MMPFN 包含各模态编码器、模态投影器及预训练基础模型。模态投影器作为关键桥梁,将非表格嵌入转换为兼容表格的标记进行统一处理。为此,我们引入多头门控 MLP 和交叉注意力池化器,从非表格输入中提取更丰富上下文,缓解多模态学习中的注意力失衡问题。在医疗和通用多模态数据集上的大量实验表明,MMPFN 持续优于当前先进方法,有效利用非表格模态与表格特征。结果凸显了将先验数据拟合网络拓展至多模态设置的潜力,提供了一种可扩展、高效的异构数据学习框架。源代码已公开于 https://github.com/too-z/MultiModalPFN。

原文摘要 · Abstract (English)

Recently, TabPFN has gained attention as a foundation model for tabular data. However, it struggles to integrate heterogeneous modalities such as images and text, which are common in domains like healthcare and marketing, thereby limiting its applicability. To address this, we present the Multi-Modal Prior-data Fitted Network (MMPFN), which extends TabPFN to handle tabular and non-tabular modalities in a unified manner. MMPFN comprises per-modality encoders, modality projectors, and pre-trained foundation models. The modality projectors serve as the critical bridge, transforming non-tabular embeddings into tabular-compatible tokens for unified processing. To this end, we introduce a multi-head gated MLP and a cross-attention pooler that extract richer context from non-tabular inputs while mitigates attention imbalance issue in multimodal learning. Extensive experiments on medical and general-purpose multimodal datasets demonstrate that MMPFN consistently outperforms competitive state-of-the-art methods and effectively exploits non-tabular modalities alongside tabular features. These results highlight the promise of extending prior-data fitted networks to the multimodal setting, offering a scalable and effective framework for heterogeneous data learning. The source code is available at https://github.com/too-z/MultiModalPFN.

多模态学习表格数据医学数据模型扩展

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