Figure 1.
The Event category corresponds to contextual change and a valid environmental signal. Associated patterns include sensor drift and time series deviation, extreme value from multiple sensors, extreme value and time series deviation, and extreme value, sensor drift, and time series deviation. The Error category corresponds to sensor fault. Associated patterns include missing value from a single sensor, extreme value from a single sensor, data granularity, extreme value and sensor drift, duplicated data, and stuck value. The Uncertain category corresponds to sensor fault or a valid environmental signal. Associated patterns include sensor drift, missing value from multiple sensors, time series deviation, and undefined anomaly.A summary of anomaly classification