$\theta$

Method

${\beta }_1$

${\beta }_2$

${\beta }_3$

${\beta }_4$

${\beta }_5$

${\beta }_6$

${\beta }_7$

${\beta }_8$

${\beta }^{true}$

3

1.5

0

0

2

0

0

0

0.3

BQR-AL

3.0110

1.5013

−0.0103

0.0035

1.9993

0.0101

−0.0004

−0.0088

BQR-L

3.0092

1.5014

−0.0113

0.0053

1.9948

0.0128

0.0002

−0.0096

QR-SCAD

3.0090

1.5094

−0.0094

0.0174

1.9965

0.0122

0.0043

−0.0007

QR-L

3.0163

1.4942

−0.0130

0.0079

1.9952

0.0083

−0.0001

−0.0091

QR

3.0143

1.4997

−0.0146

0.0063

2.0018

0.0067

−0.0007

−0.0148

0.5

BQR-AL

3.0088

1.5077

−0.0105

−0.0004

1.9979

0.0170

−0.0032

−0.0064

BQR-L

3.0064

1.5074

−0.0107

0.0013

1.9925

0.0202

−0.0032

−0.0066

QR-SCAD

3.0062

1.5109

−0.0005

0.0102

1.9931

0.0257

−0.0020

0.0084

QR-L

3.0167

1.4983

−0.0101

0.0050

1.9883

0.0182

−0.0043

−0.0066

QR

3.0124

1.5095

−0.0137

0.0045

1.9939

0.0160

−0.0027

−0.0081

0.7

BQR-AL

3.0057

1.5142

−0.0123

−0.0051

1.9973

0.0234

−0.0043

−0.0035

BQR-L

3.0025

1.5135

−0.0122

−0.0029

1.9907

0.0271

−0.0048

−0.0035

QR-SCAD

3.0015

1.5242

−0.0047

0.0079

1.9937

0.0311

−0.0002

0.0063

QR-L

3.0108

1.5042

−0.0080

0.0014

1.9890

0.0228

−0.0021

−0.0078

QR

3.0065

1.5127

−0.0122

−0.0011

1.9949

0.0231

−0.0060

−0.0050