BTP: A Bedtime Predicting Algorithm via Smartphone Screen Status

Table 3

Pseudocode of detection.

Series	Procedure	Description
1	for in UndetectedDays = do
2	.SSS = Filter(.SSS)	Filter out screen status sequence that user is not at home
3	OffList = SelectLong (.SSS)	Select continuous screen off sequences that last over 30 minutes
4	<sleep_time, wake_time> = JoinSeries(OffList)	Merge periods and get wake time and bedtime
5	SWTimeList.add(<sleep_time, wake_time>)	Record the results of consecutive days
6	end for
7	end