Abstract: According to one embodiment, an additional training apparatus includes processing circuitry. The processing circuitry stores, in a memory, a plurality of pieces of existing training data in which existing data is input data and a classification of defects according to the existing data is output data, and cluster data representing clusters to which the respective pieces of existing training data belong. The processing circuitry extracts a plurality of pieces of first existing training data from the pieces of existing training data in accordance with a size of each of the clusters. The processing circuitry acquires a plurality of pieces of new training data in which new data is input data and a classification of defects according to the new data is output data.

Abstract: According to one embodiment, a load estimation apparatus includes processing circuitry. The processing circuitry acquires sensor data from a measurement target, estimates an operation of a body part of the measurement target, based on the sensor data, estimates an operation load of the body part, based on information on the operation, estimates a posture of the body part, based on the sensor data, estimates a posture load of the body part, based on information on the posture, estimates a first cumulative load, based on the operation load, and estimates a second cumulative load, which requires a longer load elimination time than the first cumulative load, based on the operation load and the posture load.