当前位置:文档之家› 研究生模糊数学试卷20081

研究生模糊数学试卷20081

1.论域{1,2,3,...,10}X =,定义
[大]=A =0.20.40.60.811145678910
++++++ [小]=B =10.60.50.40.212345
++++ 求
C =[不大],
D =[不小],
E =[或大或小],F
=[不大也不小]。

(12分) 2.论域{1,2,3,4,5,6}X =,
0.1A ={1,2,3,4,5,6},0.4A ={2,3,4,5,6},0.8A ={3,4,5}, 1A ={4}.试求A ,,Ker A Supp A。

(12分)
3.合取范式12P f C C C =∙∙∙∙F 真的充分必要条件是所有子句j C 为F 真。

(12分)
4.已知A =0.70.50.210.80.30.60.30.40.70.20.9⎛⎫ ⎪ ⎪ ⎪⎝⎭,B =0.60.50.40.70.90.30.80.1⎛⎫ ⎪ ⎪ ⎪ ⎪⎝⎭
,试求 A B ,C A B ,0.50.6A A (14分)
5.设R =10.10.20.110.30.20.31⎛⎫ ⎪ ⎪ ⎪⎝⎭
,试求传递闭包()t R 。

(12分) 6设论域1234,{,,,}X x x x x =上的标准模型库为:
1A =(0.2,0.4,0.5,0.1),2A =(0.2,0.5,0.3,0.1),3A
=(0.2,0.3,0.4,0.1), 现在给定一个待识别的模糊集B =(0.2,0.3,0.5,0),试用格贴近公式判别B 与哪个i A
最贴近。

(12分)
7.对某种产品作综合评判,因素集1234,{,,,}X x x x x =,评判集Y ={优,良,一般,劣},设单因素决断为模糊映射f
:X →T (Y )
11()(0.7,0.3,0,0)x f x = ,22()(0.1,0.2,0.4,0.3)x f x = , 33()(0,0.5,0.3,0.2)x f x = ,44()(0.2,0.6,0.2,0)x f x = 若有两种权重分配1A =(0.5,0.2,0.2,0.1),2A
=(0.1,0.3,0.2,0.4)试评价此产品按两种权重分配情况下,分别属于哪个
级别的产品。

(12分)
8.用矩阵作业法解模糊关系方程
1234,(,,,)x x x x 0.30.50.70.90.80.20.40.30.60.50.70.40.20.10.60.80.90.70.20.4⎛⎫ ⎪ ⎪ ⎪ ⎪⎝⎭=(0.7,0.4,0.4,0.3,0.6)(14分)。

相关主题