[Retracted] Waveform Feature Extraction of Intelligent Singing Skills under the Background of Internet of Things

Table 3

Emotion recognition results.

Sample	Number	Number of successful identifications	Number of false identifications	Recognition rate
Enthusiasm	24	20	4	83.2
Cheerful	30	26	4	86.6
Sad	35	30	5	85.6
Lyric	32	29	3	90.5