In this study, we harness the information-theoretic Privacy Funnel (PF) model
to develop a method for privacy-preserving representation learning using an
end-to-end training framework. We rigorously address the trade-off between
obfuscation and utility. Both are quantified through the logarithmic loss, a
measure also recognized as self-information loss. This exploration deepens the
interplay between information-theoretic privacy and representation learning,
offering substantive insights into data protection mechanisms for both
discriminative and generative models. Importantly, we apply our model to
state-of-the-art face recognition systems. The model demonstrates adaptability
across diverse inputs, from raw facial images to both derived or refined
embeddings, and is competent in tasks such as classification, reconstruction,
and generation.

利用信息论隐私漏斗（PF）模型，开发出一种使用端到端训练框架的隐私保存表示学习方法，通过对抹消和实用性之间的权衡进行量化来实现。我们将其应用于最先进的人脸识别系统，该模型展示了在不同输入（从原始面部图像到派生或改进的嵌入）上的适应性，并且在分类、重建和生成等任务中表现出了竞争力。