[Retracted] Application of Internet of Things Artificial Intelligence and Knowledge Innovation System in Table Tennis Teaching and Training

Table 1

Age composition of table tennis players.

	10-18		18-25		25-40		40-60
Total (person)	30	5	26	9	5	3	1	1
Training time (year)	Half a year	One year	Half a year	One year	Half a year	One year	Half a year	One year