A Novel Robust Principal Component Analysis Algorithm of Nonconvex Rank Approximation

Table 1

Eight nonconvex approximate functions of .

Name of alternate function	Expression of alternate function , ,
[18]
Geman and Young [28]
SCAD [29]
MCP [30]
Laplace [31]
Capped [32]
ETP [33]
Logarithm [34]