4.1 Grounding mechanisms are use to built shared sub-spaces

4.1.4 Grounding spatial location

Do I know where my partner is and does she know where I am? These are basic questions enabling collaboration and interaction. In these experiments, the physical location is fixed (in front of the computer), but the "virtual" position of the player in the MOO can be important. This information is generally shared and monitored in a non-intrusive way for several reasons.

For these reasons, explicit grounding acts for position information are rare, and mostly repairs. In example 14, Sherlock deduced that a sent message was not read, because it contained a request for acknowledgment which had not been satisfied. Actually, in this protocol Hercule previously used 'say' 6 times when Sherlock was in another room, without performing any repair. Conversely, in example 15, the "who" command is used in a pro-active way in order to coordinate action.

Repairing spatial knowledge is preferably performed through MOO actions ('who', 'look', 'where') rather than through verbal interactions. Verbal interactions are used to ground future positions, which is quite logical since the MOO cannot provide this information. In this case, more than the position is grounded: in example 16, it is the problem solving strategy (What are you looking for), and in example 17, it is the interaction mode.

Regarding MOO actions, there is no functional necessity that, when performing some action, A knows which action B is doing at the same time. Once again, it is more important to know which actions (especially questions) the partner has previously performed and which ones he will perform. In this case partners really ground collected facts (see 4.1.1) and the problem solving strategy (see 4.1.3).

Grounding in Multi-modal Task-Oriented Collaboration - 3 SEP 1996
Generated with Harlequin WebMaker