AUTOMATICALLY GENERATING TRAINING DATA OF A TIME SERIES OF SENSOR DATA

Assistance device for automatically generating training data of a time series of sensor data, further on called temporal sensor data, applied to train an Artificial Intelligence system used for detecting anomalous behavior of a technical system, including a processor configured to perform - obtaining historical temporal sensor data, dividing the historical temporal sensor data into a temporal sequence of segments and assigning one segment type out of several different segment types to each segment, iteratively for each segment, determining a neighborhood pattern of segment types, determining the most frequently occurring neighborhood pattern from all determined neighborhood patterns as reference pattern for normal operation of the technical system, -selecting a subsequence of segments out of the historical temporal sensor data, which is ordered according to the reference pattern, and - outputting the subsequence of segments for applying as training data.