[Retracted] Optimization of the Intelligent Sports Health Management System Based on Big Data Technology and Internet of Things

Algorithm 1

The suggested algorithm.

Input: data matrix , label matrix , regularization parameters and , select the number of features K.

Output: feature selection result I.

 a) Calculate according to Eq (5) and (6).

 b) The initialization matrices H and D are the identity matrices.

 Repeat:

  Update W:

  Update D:

  Update H:

 Until it converges.

 c) Compute and sort it to find the first k largest assigned to I