直线上有9个格子,有3个点,可能有10种分布方式
数量 |
编号 |
|||||||||
7 |
0 |
1 |
1 |
1 |
0 |
0 |
0 |
0 |
0 |
0 |
6 |
2 |
1 |
0 |
1 |
1 |
0 |
0 |
0 |
0 |
0 |
6 |
1 |
1 |
1 |
0 |
1 |
0 |
0 |
0 |
0 |
0 |
5 |
6 |
1 |
0 |
0 |
1 |
1 |
0 |
0 |
0 |
0 |
5 |
3 |
1 |
1 |
0 |
0 |
1 |
0 |
0 |
0 |
0 |
5 |
4 |
1 |
0 |
1 |
0 |
1 |
0 |
0 |
0 |
0 |
4 |
5 |
1 |
1 |
0 |
0 |
0 |
1 |
0 |
0 |
0 |
4 |
8 |
1 |
0 |
0 |
1 |
0 |
1 |
0 |
0 |
0 |
4 |
7 |
1 |
0 |
1 |
0 |
0 |
1 |
0 |
0 |
0 |
3 |
9 |
1 |
0 |
0 |
1 |
0 |
0 |
1 |
0 |
0 |
如第9种向右移
1 |
0 |
0 |
1 |
0 |
0 |
1 |
0 |
0 |
0 |
1 |
0 |
0 |
1 |
0 |
0 |
1 |
0 |
0 |
0 |
1 |
0 |
0 |
1 |
0 |
0 |
1 |
只有3种分布,因此9只有3个。而1,2的数量相同,3,6的数量相同,7,8的数量相同。顺序为0>1=2>3=6=4>5=7=8>9
(A,B)---1*n*2---(1,0)(0,1)
做一个网络让A就是这10个结构,B全是0.改变隐藏层节点的数量n,让n分别是6-230共18个值
230 |
210 |
190 |
170 |
150 |
130 |
110 |
90 |
70 |
50 |
30 |
20 |
16 |
15 |
12 |
10 |
8 |
6 |
实验做了两次,迭代次数由小到大的顺序为
1 |
2 |
|||||||||||||||||||||
230 |
0 |
2 |
1 |
6 |
5 |
3 |
7 |
8 |
4 |
9 |
230 |
0 |
2 |
1 |
6 |
5 |
3 |
7 |
8 |
4 |
9 |
|
210 |
0 |
2 |
1 |
6 |
5 |
3 |
7 |
8 |
4 |
9 |
210 |
0 |
2 |
1 |
6 |
5 |
3 |
7 |
8 |
4 |
9 |
|
190 |
0 |
2 |
1 |
3 |
6 |
5 |
7 |
8 |
4 |
9 |
190 |
0 |
2 |
1 |
3 |
6 |
5 |
8 |
7 |
4 |
9 |
|
170 |
0 |
1 |
2 |
3 |
5 |
6 |
4 |
7 |
8 |
9 |
170 |
0 |
1 |
2 |
3 |
6 |
5 |
4 |
7 |
8 |
9 |
|
150 |
0 |
1 |
2 |
6 |
3 |
5 |
4 |
7 |
8 |
9 |
150 |
0 |
1 |
2 |
6 |
3 |
5 |
4 |
7 |
8 |
9 |
|
130 |
0 |
2 |
1 |
3 |
6 |
5 |
4 |
7 |
8 |
9 |
130 |
0 |
2 |
1 |
3 |
6 |
5 |
4 |
7 |
8 |
9 |
|
110 |
0 |
2 |
1 |
6 |
3 |
5 |
4 |
7 |
8 |
9 |
110 |
0 |
2 |
1 |
3 |
6 |
5 |
4 |
7 |
8 |
9 |
|
90 |
0 |
2 |
1 |
3 |
6 |
5 |
4 |
7 |
8 |
9 |
90 |
0 |
2 |
1 |
3 |
6 |
5 |
4 |
7 |
8 |
9 |
|
70 |
0 |
1 |
2 |
3 |
6 |
5 |
4 |
7 |
8 |
9 |
70 |
0 |
1 |
2 |
3 |
6 |
5 |
4 |
7 |
8 |
9 |
|
50 |
0 |
1 |
2 |
3 |
4 |
6 |
5 |
7 |
8 |
9 |
50 |
0 |
1 |
2 |
3 |
4 |
6 |
5 |
7 |
8 |
9 |
|
30 |
0 |
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
30 |
0 |
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
|
20 |
0 |
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
20 |
0 |
1 |
2 |
3 |
5 |
4 |
6 |
7 |
8 |
9 |
|
16 |
0 |
1 |
2 |
3 |
5 |
4 |
6 |
7 |
8 |
9 |
16 |
0 |
1 |
2 |
3 |
5 |
6 |
7 |
4 |
8 |
9 |
|
15 |
0 |
3 |
2 |
1 |
4 |
5 |
6 |
7 |
8 |
9 |
15 |
0 |
1 |
3 |
2 |
5 |
4 |
6 |
7 |
8 |
9 |
|
12 |
0 |
1 |
2 |
3 |
4 |
6 |
5 |
7 |
8 |
9 |
12 |
0 |
1 |
3 |
2 |
5 |
4 |
6 |
7 |
9 |
8 |
|
10 |
0 |
1 |
2 |
3 |
4 |
7 |
8 |
5 |
6 |
9 |
10 |
0 |
1 |
2 |
3 |
5 |
7 |
6 |
4 |
9 |
8 |
|
8 |
1 |
0 |
3 |
4 |
2 |
7 |
6 |
5 |
8 |
9 |
8 |
0 |
3 |
1 |
4 |
2 |
5 |
6 |
8 |
7 |
9 |
|
6 |
1 |
0 |
4 |
3 |
2 |
6 |
7 |
5 |
8 |
9 |
6 |
1 |
3 |
0 |
5 |
4 |
2 |
6 |
9 |
8 |
7 |
数据大致可以分成3部分
Ⅰ<20:混乱区,当n小于20的时候,两组数据彼此之间不一致,并且同组数据前后的顺序也不一致
Ⅱ20-150:稳定区,这一区域两组数据基本一致,同组数据前后也基本一致,并且两组数据的第50组与计算顺序完全一致
Ⅲ>150:稳定但不一致区,两组数据基本一致,但同组数据前后不一致
比较迭代次数
1 |
||||||||||
230 |
12672.9 |
19791.5 |
20484.6 |
22211.8 |
22536.7 |
22960 |
36613.7 |
36809.3 |
41526.2 |
44162.6 |
210 |
13986 |
23034.9 |
24263.2 |
24494.6 |
24867.8 |
24999.6 |
40412.2 |
40535.9 |
43552 |
45035.4 |
190 |
15535.8 |
26387 |
26875.2 |
26925.6 |
26998.4 |
27160 |
44006.1 |
44019 |
45227.1 |
45803.9 |
170 |
17345.2 |
28383.2 |
29091.8 |
29222.2 |
29401.4 |
29402.3 |
45583.6 |
45981.4 |
45986.7 |
46431.4 |
150 |
19522.6 |
29906.9 |
30162.7 |
31754.8 |
31796.4 |
31875.3 |
43445.3 |
45185 |
45210.9 |
46993.5 |
130 |
22155.9 |
31376.5 |
31458.5 |
33968.2 |
33987.1 |
34509.9 |
41973.2 |
44515.2 |
44583.7 |
47688.8 |
110 |
25361.3 |
33062.9 |
33316.1 |
36310 |
36325.6 |
37357 |
41359.5 |
44554.3 |
44618.4 |
48478.2 |
90 |
29348.5 |
35666.8 |
35855.8 |
38969.3 |
39195.8 |
40477.2 |
41911.3 |
45264.6 |
45664.6 |
49770.8 |
70 |
34664.1 |
39460.7 |
39571.5 |
42451.7 |
43115 |
44217.5 |
44227.9 |
47221.1 |
47980.3 |
51570.8 |
50 |
42145 |
45145.3 |
45622.9 |
47631.6 |
48779.6 |
48908.9 |
49534.7 |
51448.7 |
52243.2 |
55114.6 |
30 |
54512.2 |
56123.9 |
56823.3 |
57907.9 |
58942.7 |
59244.6 |
59273.3 |
60363.9 |
61586 |
63246.1 |
20 |
65886.6 |
68024.9 |
68893.7 |
69001.9 |
69710.4 |
70175.9 |
70373.8 |
71362 |
71906.1 |
73419.2 |
16 |
74323.9 |
75679.7 |
76507.1 |
76900.3 |
77138.7 |
78169.1 |
78791.4 |
78974 |
79255.2 |
80541.2 |
15 |
77275.5 |
78707.2 |
78950 |
79021.1 |
80108.3 |
80382.1 |
80439.2 |
82031.6 |
82151.4 |
82490 |
12 |
87423.4 |
88111.4 |
88906.5 |
88986.3 |
90121.2 |
90402.6 |
90979 |
91055.2 |
91566.2 |
92158.1 |
10 |
96940.8 |
97704 |
98700.9 |
99854.4 |
100459 |
100970 |
101158 |
101327 |
101349 |
102121 |
8 |
113533 |
113625 |
114304 |
114449 |
114706 |
114986 |
115246 |
115921 |
117296 |
118036 |
6 |
139103 |
140502 |
140959 |
141443 |
141530 |
141692 |
142086 |
142135 |
143018 |
144340 |
第Ⅰ区间的10条线密不可分,所以此时10个结构在Ⅰ区的占比不可分而混乱。当n=50,这10条曲线分布相对均匀,没有交叉也没有分叉,当n大约为80的时候曲线开始分叉,当n=170的时候,曲线甚至出现了两个交点,如果迭代次数反比于结构在搜索区域内的占比,当n=170时的搜索区域已经严重退化,不能很好的反应10个结构的差异。
所以从10个结构迭代次数顺序稳定性的角度比较,这个网络的最优隐藏层节点数在Ⅱ区50个左右。
比较第二组迭代次数
2 |
||||||||||
230 |
12663.7 |
19790.1 |
20491.2 |
22213.9 |
22564.5 |
22975.1 |
36608.9 |
36787.8 |
41550.9 |
44158.2 |
210 |
13983.6 |
23041.3 |
24247.7 |
24497.6 |
24881.3 |
24993 |
40425.1 |
40544.4 |
43577.5 |
45040.6 |
190 |
15538.4 |
26366.8 |
26898.1 |
26920 |
26985.9 |
27138.7 |
44021.9 |
44042 |
45191.1 |
45809.6 |
170 |
17365.7 |
28366 |
29085.4 |
29230.2 |
29398.2 |
29446.4 |
45604.9 |
45991.7 |
45996.9 |
46435.7 |
150 |
19535.3 |
29916 |
30123.5 |
31743.7 |
31774.5 |
31883.7 |
43430.7 |
45171.8 |
45217.4 |
47035.9 |
130 |
22136.5 |
31370.9 |
31425.2 |
33959.7 |
33988.4 |
34574.5 |
41956.4 |
44578.3 |
44584.6 |
47642.7 |
110 |
25322 |
33039 |
33316.6 |
36316.6 |
36321.3 |
37324.7 |
41339.4 |
44470.9 |
44658.2 |
48536.7 |
90 |
29369.9 |
35640.3 |
35818.3 |
38894.6 |
39181.9 |
40539.9 |
42011.5 |
45249.2 |
45622.9 |
49640.9 |
70 |
34680 |
39515.9 |
39535.4 |
42367.4 |
43141.5 |
44198.1 |
44327 |
47252.9 |
47846.5 |
51673.2 |
50 |
42165.1 |
45365.4 |
45610.7 |
47707.1 |
48786.8 |
48964.2 |
49425.7 |
51531 |
52249.9 |
55260.8 |
30 |
54420.7 |
56338.7 |
56790.3 |
57904.1 |
58774.7 |
59042.2 |
59462.3 |
60635.9 |
61298.8 |
63524.3 |
20 |
66826 |
67670.6 |
68228.4 |
68600.5 |
69932.6 |
69937.6 |
70364.1 |
70719.7 |
71672.9 |
73006.5 |
16 |
74647.8 |
75712.3 |
76509.2 |
76855.7 |
77846.7 |
78271.6 |
78303.3 |
78439.7 |
79359.9 |
80205.5 |
15 |
77203.1 |
78044.7 |
78741.1 |
79134.4 |
79592.5 |
79919.6 |
80141.6 |
81078.3 |
81634.7 |
82683.6 |
12 |
87348.5 |
88796.7 |
88954.1 |
89090.8 |
89446.2 |
89957.2 |
90675.5 |
91096.4 |
91903.5 |
92015.3 |
10 |
97693 |
98761.1 |
99346.2 |
99442.3 |
100268 |
100497 |
100951 |
101442 |
101808 |
102037 |
8 |
112994 |
114496 |
114599 |
115162 |
115471 |
115923 |
116186 |
116769 |
117226 |
118174 |
6 |
140075 |
140176 |
140225 |
141598 |
141794 |
141808 |
142303 |
143649 |
144111 |
144284 |
两组曲线很相近,所以随着隐藏层节点数的增加网络的搜索区域逐渐形成,当n=50个左右达到性能最佳,当n=80时,搜索区域开始退化,当n=170的时候出现交点,顺序再次变混乱。