Rough Neighborhood Ideal and Its Applications

In this study, we present a novel notion of an approximation space based on the idea of an ideal, called the rough neighborhood ideal, and its properties. Additionally, we combine two areas in which decision-making precision is improved using rough ideal expansions. An application scenario was presented to show how decision-making accuracy increased for coronavirus disease 2019 diagnosis. We also use variable precision to improve the accuracy of decision-making. Finally, we compared our strategy with another strategy.