How is fairness in AI calculated?

What is AI fairness and why is it important? Fairness is a subjective term that is difficult to define in general. "an agreement between two or more parties about what constitutes acceptable behavior or the degree of impartiality that exists between two or more parties." When used in relation to AI systems, fairness explores the potential impact of AI systems' decision making on society and who decides how those decisions are going to be made. There are many definitions for what fairness means, but the most important one for AI is that it should not discriminate against any individual or group of people based on their race, gender, sexual orientation, age, etc. AI systems are designed to learn from data and their environment, so they can make more accurate decisions.