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arXiv 2408.14682cs.LG
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检测可解释的子群漂移

Detecting Interpretable Subgroup Drifts

Politecnico di Torino(托里尼理工大学);University of California, Santa Cruz(加州大学圣克鲁兹分校)

Flavio Giobergia, Eliana Pastor, Luca de Alfaro, Elena Baralis

AI总结:

针对全局漂移监测难以发现细粒度数据子群漂移的问题,提出子群级漂移检测方法,训练时识别相关子群并全周期监测,可检测量化表征子群漂移,实验证实能发现全局层面未显现的漂移,助力构建更鲁棒自适应的模型。

摘要:

检测并适应数据分布变化的能力对于维持机器学习模型的准确性和可靠性至关重要。现有漂移检测通常从全局角度观察模型性能的漂移,但发生在细粒度数据子群中的漂移在全局漂移监测中可能被忽略。我们采用不同思路,提出了在更细的子群粒度上观测漂移的方法:相关数据子群在训练阶段被识别,并在模型全生命周期中得到高效监测;任意子群的性能漂移都会被检测、量化并表征,从而提供模型随时间变化行为的可解释总结。实验结果证实,我们的子群级漂移分析能够识别在更粗粒度的全局数据集层面不会显现的漂移。该方法为动态真实应用中的模型性能监测提供了有价值的工具,可揭示数据的演化特性,最终助力构建更鲁棒、更具适应性的模型。

英文摘要:

The ability to detect and adapt to changes in data distributions is crucial to maintain the accuracy and reliability of machine learning models. Detection is generally approached by observing the drift of model performance from a global point of view. However, drifts occurring in (fine-grained) data subgroups may go unnoticed when monitoring global drift. We take a different perspective, and introduce methods for observing drift at the finer granularity of subgroups. Relevant data subgroups are identified during training and monitored efficiently throughout the model's life. Performance drifts in any subgroup are detected, quantified and characterized so as to provide an interpretable summary of the model behavior over time. Experimental results confirm that our subgroup-level drift analysis identifies drifts that do not show at the (coarser) global dataset level. The proposed approach provides a valuable tool for monitoring model performance in dynamic real-world applications, offering insights into the evolving nature of data and ultimately contributing to more robust and adaptive models.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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