Our behavior (the way we talk, walk, or think) is unique and can be used as a biometric trait. It also correlates with sensitive attributes like emotions. Hence, techniques to protect individuals privacy against unwanted inferences are required. To consolidate knowledge in this area, we systematically reviewed applicable anonymization techniques. We taxonomize and compare existing solutions regarding privacy goals, conceptual operation, advantages, and limitations. Our analysis shows that some behavioral traits (e.g., voice) have received much attention, while others (e.g., eye-gaze, brainwaves) are mostly neglected. We also find that the evaluation methodology of behavioral anonymization techniques can be further improved.
翻译:我们的行为(我们说话、走路或思考的方式)是独特的,可以作为一种生物鉴别特征使用。它也与情感等敏感属性相关。 因此,需要保护个人隐私免遭不必要的推断的技术。 为了整合这方面的知识,我们系统地审查了应用匿名技术。 我们分类和比较了有关隐私目标、概念操作、优势和局限性的现有解决方案。 我们的分析表明,一些行为特征(例如声音)受到了很大的关注,而其他(例如眼睛-凝胶、脑波)则大多被忽视。 我们还发现,行为匿名技术的评估方法可以进一步改进。