[Retracted] Extraction of Music Main Melody and Multi-Pitch Estimation Method Based on Support Vector Machine in Big Data Environment

Table 2

Performance comparison on different databases.

Database	Method	RPA (%)	RCA (%)	Octave error
ISMIR2004	MEA method	64.76	69.91	4.96
	Methods of this article	87.84	88.17	2.97
MIREX05 train	MEA method	65.11	68.85	3.64
	Methods of this article	86.79	86.91	1.46
MIR-IK	MEA method	61.37	65.34	6.58
	Methods of this article	89.74	87.05	3.64