Fig. 4: Digital measure extraction flowchart. | npj Digital Medicine

Fig. 4: Digital measure extraction flowchart.

From: A systems approach towards remote health-monitoring in older adults: Introducing a zero-interaction digital exhaust

Fig. 4

Shows a broad summary of how digital measures were calculated, starting with raw sensor data from PIR sensors, door sensors, and bed sensors. Raw data streams were first segmented into non-overlapping bi-weekly segments. Then, for each bi-weekly segment, digital measures were calculated. If, for a given measure, less than 10 days of data were present, the measure was encoded as missing, which eventually left 1268 dimensional vectors - one per bi-weekly segment.

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