Arm Motion Recognition and Exercise Coaching System for Remote Interaction

Algorithm 1

Clustering algorithm.

Input:

  the test data set ;

Output:

  the set of cluster barycenters founded;

() Let be the initial threshold which will be used to measure and find new cluster centers.

() Let and .

() Randomly divide into clusters in an average manner.

() Randomly select an initial barycenter from each cluster;

() for each , calculate its Euclidean distance to each ;

() Assign to the cluster of with the shortest distance ;

() Update the barycenter of each cluster by

   with denotes the number of data currently in the cluster of ;

() for to do

()   If ()

()    goto step ();