Abstract: An information processing device includes a controller that: inputs information that is based on a raw material of a product that is produced at a plant to a physical model and acquires a first output result; inputs component information that is based on optical spectrum data that are obtained by spectroscopic sensing for the raw material and an output of the physical model to a machine learning model and acquires a second output result; and outputs information concerning a state of the plant based on the first output result and the second output result.

Abstract: An information processing device includes a controller that: acquires a first prediction result that indicates a state of a plant based on a physical model; acquires other prediction results that indicate a state of the plant, based on machine learning models that are generated based on data concerning the plant; and outputs information concerning a state of the plant based on the first prediction result and the other prediction results.

Abstract: An information processing device includes a controller and a display. The controller acquires a first prediction result that indicates information concerning a state of a plant that is predicted by a physical model, and acquires a second prediction result that indicates information concerning a state of the plant that is predicted by a machine learning model that is generated based on data concerning the plant. The display displays the first prediction result and the second prediction result.