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. 2019 Mar 8;19(5):1181. doi: 10.3390/s19051181

Table 2.

Summary of activity recognition features.

Feature Description
lastSensorEventHours Hour of day
lastSensorEventSeconds Seconds since midnight
windowDuration Length of window (seconds)
timeSinceLastSensorEvent Seconds since previous event
prevDominantSensor1 Most frequent sensor in previous window
prevDominantSensor2 Most frequent sensor two windows ago
lastSensorID Most recent sensor identifier
lastLocation Most recent sensor location
sensorCount Number of events in window for each sensor
sensorElTime Elapsed time since each sensor fired