提出新型鲁棒随机向量函数链接网络,提升噪声环境下的分类性能。
Robust Dual-Model Collaborative Random Vector Functional Link Network
- 用KRP损失替代最小二乘,自适应抑制异常样本影响
- 在UCI和KEEL数据集上准确率显著优于基线模型
- 适合处理噪声标签、离群点和不平衡数据的场景
随机向量函数链接(RVFL)网络具有轻量快速、训练高效且泛化能力强的特点,但传统RVFL对噪声标签、离群点和不平衡数据敏感。为此,本文提出基于核风险敏感均值p次幂(KRP)准则的鲁棒双模型协同RVFL(KRPRVFL)模型,将传统最小二乘目标替换为KRP损失,使模型在训练中自适应降低异常样本的影响,从而提升稳定性和泛化能力。同时引入协同学习机制,实现模型组件间的自适应交互,进一步增强复杂噪声环境下的鲁棒性。该框架利用核映射捕捉非线性关系,无需显式选择隐藏层,兼顾效率与可扩展性。在UCI和KEEL基准数据集上的大量实验表明,KRPRVFL在准确率、鲁棒性和统计显著性方面均持续优于基线模型,验证了其作为快速、可扩展、可靠的分类解决方案的有效性。
原文摘要 · Abstract (English)
Random vector functional link (RVFL) networks are lightweight and fast neural models that offer efficient training and strong generalization through randomized hidden-layer weights and direct input-output connections. However, conventional RVFL models are sensitive to noisy labels, outliers, and imbalanced data, which limits their performance in real-world applications. To address these challenges, we propose the kernel risk-sensitive mean p-power based RVFL (KRPRVFL) model, which integrates the computational efficiency of RVFL with the robustness of the kernel risk-sensitive mean p-power (KRP) criterion. By replacing the standard least-squares objective with a KRP-based loss, KRPRVFL adaptively reduces the influence of corrupted or unreliable samples during training, resulting in improved stability and generalization. Additionally, a collaborative learning mechanism is introduced to enable adaptive interaction among model components, further enhancing robustness in complex and noisy environments. The proposed framework also leverages kernel-induced feature mapping to capture nonlinear relationships without requiring explicit hidden-layer selection, maintaining both efficiency and scalability. Extensive experiments on UCI and KEEL benchmark datasets demonstrate that KRPRVFL consistently outperforms baseline models in terms of accuracy, robustness, and statistical significance, highlighting its effectiveness as a fast, scalable, and reliable solution for challenging classification tasks.
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