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新的 Focal Calibration Loss 旨在提高分类器概率准确性

研究人员推出了一种新颖的深度神经网络分类器目标函数 Focal Calibration Loss (FCL),旨在提高概率输出的置信度校准。FCL 将平方概率误差项集成到 focal loss 中,以控制后验失真。虽然 FCL 经过分类校准,但它并非总是严格的评分规则,这意味着其最优概率向量可能偏离真实后验。该研究量化了这种位移,并证明 FCL 锚点参数($\lambda$)能有效管理这种位移,并提供校准误差的理论保证。在 CIFAR-10/100 和 Tiny-ImageNet 等数据集上的实验表明,FCL 具有竞争力,尽管性能因指标和任务而异,有时 AdaFocal 在分箱校准误差方面表现更优。 AI

影响 引入了一种提高深度学习模型概率估计可靠性的新方法,可能影响对置信度分数至关重要的应用。

排序理由 详细介绍深度神经网络分类器新损失函数的学术论文。[lever_c_demoted from research: ic=1 ai=1.0]

在 arXiv stat.ML 阅读 →

AI 生成摘要 · Google Gemini · 来自 1 个来源。 我们如何撰写摘要 →

新的 Focal Calibration Loss 旨在提高分类器概率准确性

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详细介绍深度神经网络分类器新损失函数的学术论文。[lever_c_demoted from research: ic=1 ai=1.0]
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报道来源 [1]

  1. arXiv stat.ML TIER_1 English(EN) · Wenhao Liang, Liangwei Zheng, Wei Zhang, Weitong Chen ·

    Focal Calibration Loss:控制深度神经网络分类器中的后验失真

    arXiv:2410.18321v3 Announce Type: replace-cross Abstract: Confidence calibration matters wherever a classifier's probabilities, not just its labels, are consumed downstream. We study Focal Calibration Loss (FCL), which adds a squared probability-error (multiclass Brier) anchor to…