用隐空间投影保护隐私,让医疗与金融数据在安全中仍可用。
Data Obfuscation through Latent Space Projection (LSP) for Privacy-Preserving AI Governance: Case Studies in Medical Diagnosis and Finance Fraud Detection
- 将敏感数据映射到低维隐空间,实现隐私与可用性平衡。
- 图像分类准确率达98.7%,对敏感属性推断防护率达97.3%。
- 适配GDPR等法规,适合医疗、金融等高隐私场景使用。
随着人工智能在关键社会领域深度应用,对强大隐私保护方法的需求日益增长。本文提出一种名为隐空间投影(LSP)的数据混淆技术,旨在提升人工智能治理能力并确保负责任AI合规。LSP利用机器学习将敏感数据投影至隐空间,有效混淆数据同时保留模型训练与推理所需的关键特征。与差分隐私或同态加密等传统方法不同,LSP将数据转化为抽象的低维形式,在数据效用与隐私保护间取得精妙平衡。通过自编码器与对抗训练,LSP可分离敏感与非敏感信息,实现对隐私-效用权衡的精准控制。我们在基准数据集及两个真实案例中验证其有效性:癌症诊断与金融欺诈分析。结果表明,LSP在图像分类任务中达98.7%准确率,对敏感属性的推断防护率达97.3%,优于传统匿名化与隐私保护方法。论文还探讨了其与GDPR、CCPA、HIPAA等全球人工智能治理框架的契合度,强调其在公平性、透明性与问责性方面的贡献。通过将隐私嵌入机器学习流程,LSP为构建尊重隐私且具洞察力的AI系统提供了可行路径。最后讨论未来方向,包括理论隐私保障、联邦学习集成与隐空间可解释性增强,定位其为伦理AI发展的关键工具。
原文摘要 · Abstract (English)
As AI systems increasingly integrate into critical societal sectors, the demand for robust privacy-preserving methods has escalated. This paper introduces Data Obfuscation through Latent Space Projection (LSP), a novel technique aimed at enhancing AI governance and ensuring Responsible AI compliance. LSP uses machine learning to project sensitive data into a latent space, effectively obfuscating it while preserving essential features for model training and inference. Unlike traditional privacy methods like differential privacy or homomorphic encryption, LSP transforms data into an abstract, lower-dimensional form, achieving a delicate balance between data utility and privacy. Leveraging autoencoders and adversarial training, LSP separates sensitive from non-sensitive information, allowing for precise control over privacy-utility trade-offs. We validate LSP's effectiveness through experiments on benchmark datasets and two real-world case studies: healthcare cancer diagnosis and financial fraud analysis. Our results show LSP achieves high performance (98.7% accuracy in image classification) while providing strong privacy (97.3% protection against sensitive attribute inference), outperforming traditional anonymization and privacy-preserving methods. The paper also examines LSP's alignment with global AI governance frameworks, such as GDPR, CCPA, and HIPAA, highlighting its contribution to fairness, transparency, and accountability. By embedding privacy within the machine learning pipeline, LSP offers a promising approach to developing AI systems that respect privacy while delivering valuable insights. We conclude by discussing future research directions, including theoretical privacy guarantees, integration with federated learning, and enhancing latent space interpretability, positioning LSP as a critical tool for ethical AI advancement.
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