ANOMALY DETERMINATION DEVICE, METHOD FOR GENERATING ANOMALY DETERMINATION MODEL, AND ANOMALY DETERMINATION METHOD

An abnormality determination apparatus includes a time-series signal clipping unit, a normal vector registration unit, an abnormality determination model registration unit, and an abnormality determination unit. In a case where an abnormality determination flag is of a first type, the abnormality determination unit calculates a distance from a registered normal vector, extracts a predetermined number of normal vectors as neighboring data in ascending order of the distance, calculates a distance between a centroid vector of the neighboring data and an M-dimensional vector to be a target of abnormality determination, and performs abnormality determination of a facility based on the distance. In a case where the abnormality determination flag is of a second type, the abnormality determination unit calculates a deviation from a principal component based on a transform coefficient of a principal component, which has been calculated in advance, and performs abnormality determination of the facility based on the deviation.