摘要:人工智能在与人类生活息息相关的场景中自主决策时，正逐渐面临法律或伦理的问题或风险.可信机器学习是建立安全人工智能系统的核心技术，是人工智能领域的热门研究方向，而公平性是可信机器学习的重要考量.公平性旨在研究机器学习算法决策对个人或群体不存在因其固有或后天属性所引起的偏见或偏爱.从公平表征、公平建模和公平决策这3个角度出发，以典型案例中不公平问题及其危害为驱动，分析数据和算法中造成不公平的潜在原因，建立机器学习中的公平性抽象定义及其分类体系，进一步研究用于消除不公平的机制.可信机器学习中的公平性研究在人工智能多个领域中处于起步阶段，如计算机视觉、自然语言处理、推荐系统、多智能体系统和联邦学习等.建立具备公平决策能力的人工智能算法，是加速推广人工智能落地的必要条件，且极具理论意义和应用价值.



Abstract:Artificial intelligence raises legal and ethical issues or risks when used to automated decision-making in areas closely related to daily life. Trustworthy machine learning is the core technology in artificial intelligence safety. It is a trending research direction, of which fairness is an essential aspect. Fairness is the absence of any prejudice or favoritism towards an individual or a group based on their inherent or acquired characteristics which are irrelevant in the particular context of decision-making. A comprehensive and structured overview of three research contents is provided, namely, fair representation, fair modeling, and fair decision-making algorithm. The potential causes and harmful consequences of unfairness are first identified in data and algorithm processing. Then, the abstract definition and primary mechanisms for eliminating unfairness are summarized. The research on fairness is at its early stage in fields such as computer vision, natural language processing, recommender systems, multi-agent systems, and federated learning. Fairness is a prerequisite for the application of machine learning, and constructing fair algorithms has theoretical significance and practical values.



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