INFORMATION PROCESSING DEVICE, INFORMATION PROCESSING SYSTEM, AND PROGRAM

A processor acquires path information and stores the path information in a storage unit, determines whether or not the moving body is in a lost state based on the path information from the storage unit, and generates and outputs route information that guides the moving body to a predetermined place when the moving body is determined to be in the lost state. The processor acquires the path information as an input parameter, inputs the path information to a determination learning model, and outputs whether or not the moving body is in the lost state as an output parameter. The model is a learning model generated by machine learning using an input and output data set in which path information is used as an input parameter for learning and a determination result of whether or not path information is in the lost state is used as an output parameter for learning.