On Indexicality, Direction of Arrival of Sound Sources, and Human-Robot Interaction

Table 4

Characteristics of the tasks using DOA behaviours.

	Following a person	Taking attendance
Agents	Person being followed	Students
Robot goal	Track a person	Verify students present
Users goals	Being followed	Be in the class
DOA behaviour	Call at a distance	Call at a distance
Situation	User lost	Student name called
Sign	Here	Present
Expression
Resolution
Interpretation	Target and its position	Presence of student and position
	Playing Marco-Polo	Waiter
Agents	Players	Clients
Robot goal	Catch a player	Take and deliver orders
Users goals	Not being caught	Receive orders
DOA behaviour	Call at a distance	Call at a distance Verification
Situation	Say Marco	Robot doing nothing or asking order
Sign	Polo	Waiter
Expression
Resolution
Interpretation	Player and its position	Table to order and client talking