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English(EN) Scale-invariant Optimal Sampling for Rare-events Data with Sparse Models

新的子采样方法解决了稀疏模型中的罕见事件数据问题

研究人员开发了一种新的尺度不变最优子采样方法,用于处理稀疏模型中的罕见事件数据。该方法旨在减轻在存在非活跃特征时,过度子采样可能导致的信息丢失。该方法定义了一个最优子采样函数来最小化预测误差,利用自适应套索进行估计,并提供理论保证。对模拟数据和真实数据的数值实验证明了所提出技术(包括基于最大采样条件似然的改进效率的估计器)的有效性。 AI

影响 引入了一种新颖的统计技术,用于提高机器学习模型在处理不平衡数据集时的效率。

排序理由 学术论文,详细介绍了一种新的机器学习统计方法。[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 →

新的子采样方法解决了稀疏模型中的罕见事件数据问题

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学术论文,详细介绍了一种新的机器学习统计方法。[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) · Jing Wang, HaiYing Wang, Qiang Zhang, Hao Helen Zhang ·

    具有稀疏模型的罕见事件数据的尺度不变最优采样

    arXiv:2608.22597v1 Announce Type: new Abstract: Subsampling is effective in tackling computational challenges for massive data with rare events. Overly aggressive subsampling may adversely affect estimation efficiency, and optimal subsampling is essential to mitigate the informat…