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  • Expert system gradient desc...
    Straub, Jeremy

    Knowledge-based systems, 09/2021, Letnik: 228
    Journal Article

    Artificial intelligence systems, which are designed with a capability to learn from the data presented to them, are used throughout society. These systems are used to screen loan applicants, make sentencing recommendations for criminal defendants, scan social media posts for disallowed content and more. Because these systems do not assign meaning to their complex learned correlation network, they can learn associations that do not equate to causality, resulting in non-optimal and indefensible decisions being made. In addition to making decisions that are sub-optimal, these systems may create legal liability for their designers and operators by learning correlations that violate anti-discrimination and other laws regarding what factors can be used in different types of decision making. This paper presents the use of a machine learning expert system, which is developed with meaning-assigned nodes (facts) and correlations (rules). Multiple potential implementations are considered and evaluated under different conditions, including different network error and augmentation levels and different training levels. The performance of these systems is compared to random and fully connected networks. •Presents new artificial intelligence technique based on using machine learning principles with a base expert system.•Describes how this can mitigate bias and other issues caused by the use of neural networks.•Characterizes system efficacy and performance.