基于改进蝗虫优化算法的特征选择方法
刘亮,何庆
An feature selection method based on improved grasshopper optimization algorithm
Liang Liu,Qing He
表1
基准测试函数
Table 1
Benchmark functions
函数名
表达式
维度（
Dim
）
搜索空间
理论
最优值
Sphere
F
1
=
∑
i
=
1
D
i
m
x
i
2
5/30
[-100,100]
0
Schwefel 2.22
F
2
=
∑
i
=
1
D
i
m
x
i
+
∏
i
=
1
D
i
m
x
i
5/30
[-10,10]
0
Schwefel 1.2
F
3
=
∑
i
=
1
D
i
m
∑
j
-
1
i
x
j
2
5/30
[-100,100]
0
Schwefel 2.21
F
4
=
m
a
x
i
x
i
,
1
≤
i
≤
D
5/30
[-100,100]
0
Rastrigin
F
5
=
x
i
2
-
10
c
o
s
(
2
π
x
i
)
+
10
5/30
[-5.12,5.12]
0
Ackley
F
6
=
-
20
e
x
p
-
0.2
1
D
i
m
∑
i
=
1
D
i
m
x
i
2
-
e
x
p
1
D
i
m
∑
i
=
1
D
i
m
c
o
s
(
2
π
x
i
)
+
20
+
e
5/30
[-32,32]
0