Table 4.
A priori rule base of the different semantic rules that describe the modelled problems.
| #Variables | #Rule | #Problem |
|---|---|---|
| Duration in seconds | Time to fall asleep in a day > 1800 | Insomnia |
| Count of sleep interruptions | Number of interruptions in a day > 10 | Restlessness |
| Duration in minutes | Sleep total duration in a day > 480 | Too Much Sleep |
| Duration in minutes | Sleep total duration in a day < 300 | Lack of Sleep |
| Duration of “Nap” state in minutes | Asleep in Naps > 100 in a day | Increased Napping |
| Occurrence of “Nap” State, Occurrence of “Night Sleep” state | Asleep in Naps end time < 2 h from Sleep start time | Nap close to bedtime |
| Time Asleep / Time in bed | Sleep Efficiency < 85 | Low Sleep Quality |
| Step count, Heart Rate measure, Duration in minutes | Steps < 50 & Heart Rate > 90 (Fat Burn Zone) for duration > 300 | Stress or Pain |
| Heart Rate measure | HR < 60 | Low Heart Rate |
| Step count, Heart Rate measure, Duration in minutes | Steps < 1000 & Heart Rate < 80 for duration > 300 | Inactivity |
| Step count, Heart Rate measure, Duration in minutes | Steps < 500 & Heart Rate < 100 for duration > 800 | Lack of Movement |
| Step count | Steps < 8000 | Lack of Exercise |