arXiv:2508.12997cs.LGstat.ML2025-08被引 2

解决多视图证据学习中的偏见问题,提升预测可靠性与不确定性估计准确性。

Fairness-Aware Multi-view Evidential Learning with Adaptive Prior

  • 基于训练轨迹自适应调整先验,校正证据学习偏差。
  • 引入类别证据方差公平约束,实现更均衡的证据分配。
  • 适用于需要可信不确定性的多视图场景,如医疗诊断、金融风控。

多视图证据学习旨在融合多视角信息以提升预测性能并提供可信赖的不确定性估计。现有方法通常假设各视图的证据学习天然可靠,但实证分析发现,样本倾向于为数据丰富的类别分配更多证据,导致不确定性估计不可靠。为此,本文提出公平感知的多视图证据学习(FAML)。FAML首先引入基于训练轨迹的自适应先验,作为正则化策略灵活校准有偏的证据学习过程;其次,显式引入基于类别证据方差的公平性约束,促进证据在各类别间均衡分配。在多视图融合阶段,提出意见对齐机制,缓解跨视图偏差,鼓励一致且相互支持的证据整合。理论分析表明,FAML提升了证据学习的公平性。在五个真实世界多视图数据集上的实验表明,相比现有最优方法,FAML实现了更均衡的证据分配,同时提升了预测性能与不确定性估计的可靠性。

原文摘要 · Abstract (English)

Multi-view evidential learning aims to integrate information from multiple views to improve prediction performance and provide trustworthy uncertainty esitimation. Most previous methods assume that view-specific evidence learning is naturally reliable. However, in practice, the evidence learning process tends to be biased. Through empirical analysis on real-world data, we reveal that samples tend to be assigned more evidence to support data-rich classes, thereby leading to unreliable uncertainty estimation in predictions. This motivates us to delve into a new Biased Evidential Multi-view Learning (BEML) problem. To this end, we propose Fairness-Aware Multi-view Evidential Learning (FAML). FAML first introduces an adaptive prior based on training trajectory, which acts as a regularization strategy to flexibly calibrate the biased evidence learning process. Furthermore, we explicitly incorporate a fairness constraint based on class-wise evidence variance to promote balanced evidence allocation. In the multi-view fusion stage, we propose an opinion alignment mechanism to mitigate view-specific bias across views, thereby encouraging the integration of consistent and mutually supportive evidence.Theoretical analysis shows that FAML enhances fairness in the evidence learning process. Extensive experiments on five real-world multi-view datasets demonstrate that FAML achieves more balanced evidence allocation and improves both prediction performance and the reliability of uncertainty estimation compared to state-of-the-art methods.

多视图学习证据学习公平性不确定性估计

Thank you to arXiv for use of its open access interoperability. PaperDance 不是 arXiv 官方产品;中文卡片由大模型生成,请以原文为准。