Ontology-Based Framework for the Automatic Recognition of Activities of Daily Living Using Class Expression Learning Techniques

Table 5

Best descriptions found for some activities.

Class description		Explanation
	(3)	Breakfast (OMA-OCEL): an activity that starts and ends with the activation of the kitchen door sensor or an activity in which the fridge has been opened and the third event has been fired by a door sensor. In any case, the sensor in the main entrance door cannot be the last sensor activated and the sensor in the kitchen door has to be activated at some instant during the activity.
	(4)	Breakfast (Salguero-OCEL): an activity in which the living door sensor has not been activated after the kitchen door has been opened. The activity cannot start with the activation of the main entrance door.
	(5)	Grooming (Salguero-CELOE): an activity in which the living door sensor has not been activated after the kitchen door has been opened. The activity cannot start with the activation of the main entrance door.
	(6)	Breakfast (Noor-CELOE): an activity that lasts between 5 and 10 minutes.
	(7)	Grooming (Noor-CELOE): an activity that lasts between 1 and 5 minutes.
	(8)	Spare time TV (Noor-CELOE): an activity that lasts more than 10 minutes.
	(9)	Showering (OMA-CELOE): an activity that always ends with an activation of the shower sensor.
	(10)	Showering (COSAR-CELOE): an activity that contains an event produced by the shower sensor.
	(11)	Showering (SPHERE-CELOE): an activity that contains an event produced by the shower sensor.
	(12)	Showering (Noor-CELOE): an activity that lasts between 1 and 5 minutes.