arXiv:2504.01135cs.LG2025-04中稿 · Symposium on Intel…被引 1

用生成对抗网络抵抗模型预测引发的数据漂移,提升分类稳定性。

Performative Drift Resistant Classification Using Generative Domain Adversarial Networks

  • 结合域对抗与生成对抗网络,学习不变特征并逆转漂移影响。
  • 在多轮迭代中显著降低性能下降,有效应对预测导致的漂移。
  • 适用于无法频繁重训练的动态场景,如金融风控、推荐系统。

Performative Drift 是一种特殊的概念漂移,即模型预测会反过来影响未来数据分布。在这种情况下,频繁重训练并不总是可行。本文提出生成域对抗网络(GDAN),融合域对抗与生成对抗网络,通过构建域不变表示并利用生成网络逆转漂移效应,实现对漂移的抵抗。基于半真实与合成数据生成器的实验表明,GDAN在多个时间步上均能有效缓解性能下降。此外,其生成模块可独立用于其他模型,以降低其在漂移环境下的性能衰减。研究还揭示了传统重训练策略在不可预测的漂移场景中的局限性,为理解该问题提供了新视角。

原文摘要 · Abstract (English)

Performative Drift is a special type of Concept Drift that occurs when a model's predictions influence the future instances the model will encounter. In these settings, retraining is not always feasible. In this work, we instead focus on drift understanding as a method for creating drift-resistant classifiers. To achieve this, we introduce the Generative Domain Adversarial Network (GDAN) which combines both Domain and Generative Adversarial Networks. Using GDAN, domain-invariant representations of incoming data are created and a generative network is used to reverse the effects of performative drift. Using semi-real and synthetic data generators, we empirically evaluate GDAN's ability to provide drift-resistant classification. Initial results are promising with GDAN limiting performance degradation over several timesteps. Additionally, GDAN's generative network can be used in tandem with other models to limit their performance degradation in the presence of performative drift. Lastly, we highlight the relationship between model retraining and the unpredictability of performative drift, providing deeper insights into the challenges faced when using traditional Concept Drift mitigation strategies in the performative setting.

概念漂移生成对抗鲁棒分类动态建模

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。