Energy Optimization for Outdoor Activity Recognition

Algorithm 1

Trajectory classification.

Input:

A GPS point ;

Output:

The activity of the person;

(1)   For each

(2)    Store in TW;

(3)   End for each

(4)    For each  

(5)    Classify every point in TW;

(6)    Update ;

(7)    Update the centers of clusters (, );

(8)    Calculate the threshold µ;

(9)    //Cluster’s accumulation search

(10)    If () then

(11)        POI = spatial recognition ();

(12)        Activity = activity discovery (POI);

(13)    End if

(14)   Update ;

(15)   Return Activity

(16)   End for each