[Retracted] Application of Internet of Things Technology in Vocal Music Teaching Recording Equipment Assisted by Machine Learning

Table 2

Comparative experimental results based on parallel spatial and temporal feature extraction networks.

End-to-end model	Spatial feature extraction network			Time series feature extraction network		Epoch
	DNN	CNN	ResNet	LSTM	BiLSTM	100	200
Experiment 1	√					96.5%	96.6%
Experiment 2		√				94.5%	94.6%
Experiment 3			√			94.6%	94.5%
Experiment 4				√		68.8%	69.4%
Experiment 5					√	70.9%	70.7%
Experiment 6	√					97.3%	97.3%
Experiment 7		√				96.2%	96.1%
Experiment 8			√	√		96.2%	96.2%