Application of Improved -Means Clustering Algorithm in Targeted Practice of College Volleyball Fitness Training Classification

Table 1

Evaluation indicators of clustering effect when selecting different classification numbers.

Number of categories	Classification coefficient	Average fuzzy entropy
2	0.7972	0.3348
3	0.6802	0.5638
4	0.6193	0.7147
5	0.5841	0.8200