PhD Thesis Yasmina-Bashon 2013-06-18
Transcript of PhD Thesis Yasmina-Bashon 2013-06-18
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Age
a
b
A
a
b
α
F 1
F 2
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N 1 N 2
C 1
C 2
−2
α = β = γ = 1
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W A
Min
Min/Max
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α =
1, β = 0.5 γ = 0.8
α =
1, β = 0.8
γ = 0.5
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Chapter1
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{16, 17, 18, 19}
old
45
98%
0.7/middle
aged
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Chapter2
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•
a = 3
a ∈ (0.25, 0.75]
•
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a
b
a
b
A
B
a
b
A − B
b
a
B − A
a b A B
S (a, b) = f (A ∩ B)
f (A ∩ B) + αf (A − B) + βf (B − A)
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Chapter3
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U
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u U
0
5
A
U
A ⊆ U
x
A (x ∈ A)
A (x ∈ A)
A
A : U → {0, 1}
A(x) = 1,
x
AA(x) = 0,
x
A
ℵ = {1, 2, 3, . . .})
A = {x ∈ U |x ≥ 0}
µA(x) : U → {0, 1} x ∈ A
µA(x) =
1 if x ∈ A
0 if x ∈ A
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1 0
A = {Ai| i ∈ I }
i
I
Ai
A = {A1, A2, . . . , An}
• φ : U → {0, 1}
φ(x) = 0
x ∈ U
• A
B A ⊆ B ⇔
A
B
• A B
A = B ⇔ A ⊆ B
B ⊆ A
• A
B
A = B
• A
B A ⊂ B ⇔ A ⊆ B
A = B
• A
B A ⊆ B
B ⊇ A
A
P (A)
A
2A
A |A|
A
2|A|
A = {1, 2, 3}
P (A) = {{1}, {2}, {3}, {1, 2}, {1, 3}, {2, 3},
{1, 2, 3
}}
|A
|= 3
|P (A)
|= 2|A| = 23 = 8
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•
A
B
A − B = {x|x ∈ A
u ∈ B}
• B B − A = A A
¯A = A
φ = U
U = φ
• r
A
rA = {rx|x ∈ A}
•
A
B
A ∪ B = B ∪ A = {x|x ∈ A x ∈ B}
A ∪ U = U
A ∪ φ = A
A ∪ A = U
i∈I Ai = {x|x ∈ Ai
i ∈ I }
•
A
B
A ∩ B = B ∩ A = {x|x ∈ A
x ∈ B}
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A ∩ U = A A ∩ φ = φ A ∩ A = φ
i∈I Ai = {x|x ∈ Ai
i ∈ I }
• A
B
A ∩ B = φ
A ⊆ U
B ⊆ U
A
A A
A
π(A) = {Ai|i ∈ I, Ai ⊆ A}
Ai = φ
A ↔ Ai ∩ A j = φ
i, j ∈ I, i = j
i∈I Ai = A
A
π(A)
F
U
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¯A = A
A ∪ B = B ∪ AA ∩ B = B ∩ A
A ∩ (B ∪ C ) = (A ∩ B) ∪ (A ∩ C )A ∪ (B ∩ C ) = (A ∪ B) ∩ (A ∪ C )
A ∪ A = AA ∩ A = A
A ∪ (A ∩ B) = AA ∩ (A ∪ B) = A
U
φ
A ∪ U = U A ∩ φ = φ
A ∪ φ = AA ∩ U = A
A ∩ A = φ
A ∪ A = U
A ∩ B = A ∪ BA ∪ B = A ∩ B
x U
[0, 1]
µF (x) : U →
[0, 1]
x ∈ U
F = {µF (x)/x|x ∈ U, µF (x) ∈ [0, 1] ⊂ }
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µF
µF (x) = 0,
x
F,
µF (x) = 1,
x
F,
µF (x) ∈ (0, 1),
x
F,
µF (x)
1
x
F
0 1 2 3 4 5 6 7 8 9 100
0.2
0.4
0.6
0.8
1
M e m b e r s h i p D e g r e e s
F (U ) = {F |F
U }
U
F
F = µF (x1)
x1
+ µF (x2)
x2
+ . . . + µF (xn)
xn
,
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F =x∈U
µF (x)
x ,
F =
x∈U
µF (x)
x dx.
{0.1/1.4, 0.4/1.6, 0.78/1.8} {(1.4, 0.1), (1.6, 0.4), (1.8, 0.78)}
A
U
µA(x)
x
[0, 1]
[0, 1]
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1 1.2 1.4 1.6 1.8 2 2.2 2.4 2.6
0
0.2
0.4
0.6
0.8
1
Height
D e g r e e o f m e m b e r s h i p
tall
1 1.2 1.4 1.6 1.8 2 2.2 2.4 2.6
0
0.2
0.4
0.6
0.8
1
Height
D e g r e e o f m e m b e r
s h i p
tall
µA : x
→[0, 1], x
∈U
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0 2 4 6 8 10 120
0.5
1
aU
a
m b
aa
00
1
m−margin m−margin
U
m
x
U
A
U
U
•
a
b
m
a < m < b
b − m
m − a
trimf (x) =
0,
x ≤ a x ≥ b
x−am−a ,
x ∈ (a, m]
b−xb−m ,
x ∈ (m, b)
•
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00
1
m
0 2 4 6 8 100
0.2
0.4
0.6
0.8
1
ba
sg(x) =
0,
x = m
1,
x = m
•
a
b
L(x) =
1,
x ≤ a
b−xb−a ,
a < x < b
0,
x ≥ b
•
k > 0
gamma(x) =
0,
x ≤ a
1 − ek(x−a)2,
a < x
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gamma(x) =
0,
x ≤ a
k(x−a)21+k(x−a)2 ,
a < x
a
k
0 1 2 3 4 50
0.2
0.4
0.6
0.8
1
k=1/2
k=1
k=2
0 2 4 6 8 100
0.2
0.4
0.6
0.8
1
a b
•
a
b
m a < m < b
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m = (a+b)2 a − b
S (x) =
0,
x < a
x−ab−a ,
a ≤ x < m
x−bb−a ,
m ≤ x ≤ b
1,
x > b
0
0.5
1
a m b
• a
d
b
c
trap(x) =
0,
x ≤ a x ≥ d
x−ab−a ,
x ∈ (a, b)
1,
x ∈ [b, c]
d−xd−c ,
x ∈ (c, d)
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0 2 4 6 8 100
0.2
0.4
0.6
0.8
1
X
b ca d
•
m
k > 0
k
gauss(x) = e−k(x−m)2
σ2
00
1
m
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0 20 40 60 800
0.2
0.4
0.6
0.8
1
Age
M e m b e r s h i p D e g r e e s
young middle−aged old
Age
A
B
U
µA
µB
• A
B
A ∪ B
U
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µA∪B
µA∪B(x) = f (µA(x), µB(x)),
f
• A
B
A ∩ B
U
µA∩B
µA∩B(x) = g(µA(x), µB(x)),
g
•
t : [0, 1]2 → [0, 1]
x t y = y t x
x t (y t z ) = (x t y) t z
x ≤ y
w ≤ z
x t w ≤ y t z
x t 0 = 0
x t 1 = x
•
s : [0, 1]
2
→ [0, 1]
x s y = y s x
x s (y s ) = (x s y) s z
x ≤ y
w ≤ z
x s w ≤ y s z
x s 0 = x
x s 1 = 1
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0 2 4 6 8 1 00
0.2
0.4
0.6
0.8
1
U
A B
A B
0 2 4 6 8 1 00
0.2
0.4
0.6
0.8
1
U
A ∪ B
0 2 4 6 8 1 00
0.2
0.4
0.6
0.8
1
U
A ∩ B
a
b
• N : [0, 1] → [0, 1]
N (0) = 1
N (1) = 0
N (N (x)) = x
N
N
•
A
A
U
µA : U → [0, 1]
∀x ∈ U, µA(x) = 1 − µA(x)
A
∩ A
= φ
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0 2 4 6 8 100
0.5
1
1.5
A
U
A
0 2 4 6 8 100
0.5
1
1.5
Not(A)
U
A
A
a
b
F
U
x1, x2 ∈ U
µF (λx1 + (1 − λ)x2) ≥ min[µF (x1), µF (x2)]
λ ∈ [0, 1]
¯A = A
A ∪ B = B ∪ AA ∩ B = B ∩ A
A ∩ (B ∪ C ) = (A ∩ B) ∪ (A ∩ C )A ∪ (B ∩ C ) = (A ∪ B) ∩ (A ∪ C )
A ∪ A = AA ∩ A = A
A ∪ φ = AA ∩ U = A
(A ⊂ B) ∩ (B ⊂ C )
(A ⊂ C )
A ∩ B = A ∪ BA ∪ B = A ∩ B
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x1, x2 ∈ U
µF (λx1 + (1 − λ)x2) ≤ max[µF (x1), µF (x2)]
λ ∈ [0, 1]
F
U
x ∈ U
µF (x) = 1
A
•
F
F
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supp(F ) = {x|x ∈ U µF (x) > 0}
• F
F
ker(F ) = {x|x ∈ U
µF (x) = 1}
• F
U
Card(F ) = |F | =
x∈U µF (x)
•
F
α
0 ≤ α < 1 (0 < α ≤ 1)
α F
F α+ = {x|x ∈ U
µF (x) > α}
F α = {x|x ∈ U
µF (x) ≥ α}
α
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•
•
•
α
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x ∈ U
COG =
x µA(x) × x
x µA(x)
U
COG =
x
µA(x) x dx x
µA(x) dx
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A
B
X
Y
A
B
(a, b)
A
B
A × B = {(a, b)|a ∈ A, b ∈ B},
A × B = B × A
A = {a,b,c}
B = {1, 2}
A × B = {(a, 1), (a, 2), (b, 1), (b, 2), (c, 1), (c, 2)}
B × A = {(1, a), (1, b), (1, c), (2, a), (2, b), (2, c)}
R
X
Y
X × Y R = {(x, y)|x ∈ X y ∈ Y }
A
B
X
Y
A × B
A
B
µA(x)
µB(x)
µA×B(x, y) = min[µA(x), µB(x)] = µA(x) ∧ µB(x),
µA×B(x, y) = µA(x) µB(x) ∀x ∈ X
y ∈ Y
X
Y
R
X
Y
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R(x, y) = {µR(x, y)/(x, y)|(x, y) ∈ X × Y }
µR(x, y)
R(x, y)
x
y
d : U ×U → R
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∀x,y,z ∈ U
d(x, x) = 0
d(x, y) = d(y, x)
d(x, y) > d(x, x)
d(x, y) + d(y, z ) > d(x, z )
n
U
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S : U ×U → R
∀x, y ∈ U
S (x, x) = 1
S (x, y) = S (y, x)
S (x, x) ≥ S (y, x)
S (x, y) ≥ 0
[0, 1]
•
•
•
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•
d : U × U → R+
d(x, y) =
ni=1(xi − yi)2
d(x, y) =
ni=1 α(xi − yi)2
d(x, y) =
(x − y)T C −1(x − y)
d(x, y) = p n
i=1(xi
−yi) p
x = (x1, x2, . . . , xn)
y = (y1, y2, . . . , yn)
n
n = 2
√ αi
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x
y
C
p = 2
p = 1
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δ (xi, yi) =
0 if xi = yi
1 if xi = yi
δ (xi, yi) =
0 if xi = yi
f (xi)(f (xi)
−1)
N (N − 1) if xi = yi
δ (xi, yi) =
0 if xi = yi
1
1 + log N f (xi)
× log N f (yi)
if xi = yi
δ (xi, yi) =
0 if xi = yi
n2i
n2i + 2
if xi = yi
f (aij) aij
a j
N
n2i /(n2
i + 2)
n j
a j
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a
b
A
B
S (A, B)
s(a, b)
s(a, b) = S (A, B) = θf (A ∩ B) − αf (A − B) − βf (B − A).
s(a, b) = S (A, B) = θf (A ∩ B)θf (A ∩ B) − αf (A − B) − βf (B − A) .
A ∩ B
A
B
A − B
A
B
B − A
B
A
θ
α
β
f
α = β = 1
S (a, b) = f (A ∩ B)
f (B ∪ A)
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α = β = 12
S (a, b) = 2f (A ∩ B)
f (A) + f (B)
α = 1, β = 0
S (a, b) = f (A ∩ B)
f (A)
J
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xi
v j
V j
E =C
j=1
ni=1,xi∈V j
(xi − v j)2.
•
• C
2 ≤ C ≤ N
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N
µ
xi
{C i|i = 1, . . . , C }
µC j (xi) =
1
xi ∈ C j
0
xi ∈ C j
C
c
c
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•
•
•
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J (U, V ) =
C
j=1
N
i=1 (µij)
m
xi − v j 2
D = {X 1, X 2, . . . , X i, . . . , X n}
X i
p
X i = {xi1, xi2, . . . , xip}
c(1 < c < n)
m
A = {A1, . . . , Ac};
A(0)(t = 0)
c j=1
µij = 1,
i ∈ {1, 2, . . . , n}
ith
j ∈ {1, 2, . . . , c}
v j =
ni=1(µij)mX ini=1(µij)m
; ∀ j = 1, 2, . . . , c .
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µt+1ij =
1
(c
l=1(
dtij
dtil )
2m−1
)
A(t + 1) − A(t) ≤
t ← t + 1
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•
•
•
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Chapter4
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n
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W A
min
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F 1
F 2 r
atF 1 = {a1, a2, . . . , ar}
atF 2 = {b1, b2, . . . , br}
dis : F (U j) × F (U j) → [0, 1]
Aij, Bij ∈ F (U j)
jth
U j jth i = 1, 2, . . . , m j
a j
b j
µAij(x) = µBij
(x)
x ∈ U j
dis(Aij, Bij)
x1, x2 ∈ U j
dis(Aij, Bij) = |µAij(x1) − µAij
(x2)|
a j
b j
µAij
(x)
µBij(x)
x1, x2 ∈ U j
dis(Aij, Bij) = |µAij(x1) − µBij
(x2)|
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dF : atF 1×atF 2 →
[0, 1]
⊕ j : ([0, 1])mj
→[0, 1]
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dF (a j , b j) = ⊕ j(dis(A1 j , B1 j),dis(A2 j , B2 j), . . . , d i s(Amjj , Bmjj )) m j
jth
dF (a j , b j) =
(mj
i=1 dis(Aij , Bij)2√ m j
dF
√ m j
S F : atF 1 ×atF 2 → [0, 1]
a j
b j
S F (a j, b j) = 1 − dF (a j, b j)
1 + k jdF (a j, b j)
k j ≥ 0
j = 1, 2, . . . , r
r
k j
dF
k j
dF
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k
F = {F 1, F 2, . . . , F k}
r
F s, F t ∈ F
FuzzySim : F × F → [0, 1]
FuzzySim(F s, F t) = ⊗((S (a1, b1), S (a2, b2), . . . , S (ar, br))
⊗ : [0, 1]r → [0, 1]
•
FuzzySim(F s, F t) =
r j=1 α jS F (a j, b j)r
j=1 α j
α j ∈ [0, 1]
•
FuzzySim(F s, F t) = min(S F (a1, b1), S F (a2, b2),ldots,S F (ar, br))
α j
jth
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F 1 F 2
FuzzySim(F s, F t)
F s
F t
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dis(Aij, Aij) = |µAij
(x) − µAij(x)| = 0
x ∈ U j
dF (a j, a j) =√ (mj
i=1 dis(Aij ,Aij)2√ mj
= 0
S F (a j, a j) = 1−dF (aj ,aj)1+kjdF (aj ,aj)
= (1 − 0)/(1 + k j(0)) = 1
dis(Aij, Bij) = |µAij
(x) − µBij(y)| = |µBij
(y) −µAij
(x)| = dis(Bij, Aij)
x, y ∈ U j dF (a j , b j) = dF (b j, a j)
S F (a j, b j) = S F (b j , a j)
FuzzySim(F s, F t) = FuzzySim(F t, F s)
a j = b j, dF (a j, b j) > 0 S F (a j , b j) < 1 = S F (a j, a j)
DQ = [0, 1]
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F DQ = {Low, Regular, High}
DQ
m j = 3
Q(room1) = {0.0/Low, 0.198/Regular, 0.375/High}Q(room2) = {0.0497/Low, 0.667/Regular, 0.0/High}
a1
b1
A11, A21 A31
Low, Regular
High
dF (a1, b1) = (|µA11
(x)−µA11(y)|2+|µA21
(x)−µA21(y)|2+|µA31
(x)−µA31(y)|2
3 )
12
= ( |0.0−0.0497|2+|0.1979−0.667|2+|0.3753−0.0000|2
3 )
12 ∼= 0.35
a1 b1isS (a1, b1) = 1−0.3480
1+k1(0.3480)
k1 ≥ 0
k1
k1 = 1
S (a1, b1) ∼= 0.4836
k1 = 2
S (a1, b1) ∼= 0.3844
DP = [0, 600]
F DP = {Cheap, Moderate, Expensive}
P (room1) = {0.2353/Cheap, 0.726/Moderate, 0.0169/Expensive}P (room2) = {0.0/Cheap, 0.2353/Moderate, 0.4868/Expensive}
P (room1)
P (room2)
a2
b2
A12, A22, andA32
Cheap, Moderate
Expensive
dF (a2, b2) ∼= 0.4151
k2 = 1
S (a2, b2) ∼= 0.4133
k2 = 2
S (a2, b2) ∼= 0.3196
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FuzzySim(F 1, F 2) = FuzzySim(room1,room2) =
⊗(S (a1, b1), S (a2, b2))
α1 = 0.5
α2 = 0.8
k1 = k2 = 1
FuzzySim(F 1, F 2) =
2j=1 ajS (aj ,bj)2
j=1 aj= 0.5∗S (a1,b1)+0.8∗S (a2,b2)
0.5+0.8∼= 0.4403
k1 = k2 = 2
FuzzySim(F 1, F 2) ∼= 0.3445
k1 = k2 = 1
FuzzySim(F 1, F 2) = minn=2[0.4836, 0.4133] = 0.4133
k1 = k2 =
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2
FuzzySim(F 1, F 2) = 0.3196
dF (a j, b j) =
mji=1 |µAij (x)−µBij (y)|2
mj
12
; x, y ∈ D
A11, B11
Low A21, B21
Regular
A31, B31
High
dF (a1, b1) ∼= 0.2469
a1
b1
k1 = 1
S F (a1, b1) ∼= 0.6039
S F (a1, b1) ∼= 0.5041
k1 = 2
a2
b2
A12, B12
Cheap A22, B22
Moderate
A32, B32
Expensive
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dF (a2, b2) = 0.5979
k2 = 1
S F (a2, b2) = 0.2566
k2 = 2
S F (a2, b2) = 0.1871
FuzzySim(F 1, F 2)
α1 = 0.5
α2 = 0.8
k1 = k2 = 1
FuzzySim(F 1, F 2) =
0.3902 k1 = k2 = 2 FuzzySim(F 1, F 2) = 0.3090
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k1 = k2 = 1 FuzzySim(F 1, F 2) = 0.2566 k1 =
k2 = 2
FuzzySim(F 1, F 2) = 0.1871
room1
room2
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Q(room1) = 0.8 ≡ {0.0/Low, 0.1979/Regular, 0.3753/High}P (room2) = 420 ≡ {0.0/cheap, 0.2353/Moderate, 0.4868/Expensive}
k j
d
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Chapter5
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•
•
•
•
N 1
N 2
n
atN 1 = {a1, a2, . . . , an}
atN 2 = {b1, b2, . . . , bn}
(a j, b j) ∈ U j × U j U j
jth
d : U j × U j → [0, 1]
d
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dN : U j × U j → [0, 1]
a j
b j
dN (a j, b j) = (d(a j, b j) − dm(a j, b j))
(dM (a j, b j) − dm(a j, b j))
dm
dM d
d = dm
d = dM
a j
b j dN : U j × U j → [0, 1]
dN (a j, b j) = min
max
d(a j, b j) − m
M − m , 0
, 1
dN = 0
d ≤ m
dN = 1
d ≥ M
[m, M ]
m
M
U j
jth
a j
b j U j
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a j, b j ∈ U j
S N : U j × U j → [0, 1]
S N (a j, b j) = 1 − dN (a j, b j)
1 + k jdN (a j, b j); k j ≥ 0.
k j = 0
S N (a j , b j) = 1 − dN (a j , b j).
k j
N = {N 1, N 2, . . . , N k}
k
N s
N t ∈ N
NumSim : N × N → [0, 1]
NumSim(N s, N t) = ⊗(S N (a1, b1), S N (a2, b2), . . . , S N (an, bn))
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N 1
N 2
⊗ : [0, 1]n → [0, 1]
NumSim(N s, N t)
N s
N t
d(x, x) = 0
∀x ∈ U j
dN (a j, a j) = 0
S N (a j, a j) = 1 − dN a j , b j) = 1
NumSim(N s, N s) = 1
s ∈
{1, 2, . . . , k
}
d(x, y) = d(y, x)
x, y
∈ U j
dN (a j, b j) = dN (b j, a j)
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S N (a j, b j) = S N (b j, a j) NumSim(N s, N t) = NumSim(N t, N s)
s, t ∈ {1, 2, . . . , k}
∀a j
b j a j = b j
dN (a j, b j) >
0 = dN (a j, a j)
S N (a j , b j) < 1
•
a j
xij, yij ∈ U j
xij = yij
xij = yij
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•
a j
{0, 1}
•
•
C 1
C 2 m
atC 1 =
{a1, a2, . . . , am}
atC 2 = {b1, b2, . . . , bm}
a j, b j ∈ U j = {u1 j, u2 j, . . . , umj j}
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j = 1, 2, . . . , m m j
jth
δ 1 : U j × U j → {0, 1}
δ 1(aij, bi j) = 0
aij = bij
δ 1(aij, bi j) = 1
δ 2 : U j × U j → {0, 1}
δ 2(aij, bij) = |aij − bij|
|L − U |
L
U
a j
p
dm(a j, b j) = 0
dC : atC 1 × atC 2 → [0, 1]
a j
b j
dC (a j, b j) = δ 1(aij, bij)
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a j, b j
dC (a j, b j) = δ 2(aij, bij)
a j, b j
S C : atC 1 × atC 2 → [0, 1]
S C (a j, b j) = 1 − dC (a j, b j)
1 + k jdC (a j, b j); k j ≥ 0,
k j = 0
S C (a j, b j) = 1 − dC (a j , b j)
C = {C 1, C 2, . . . , C k}
k
C s, C t
∈ C
CatSim :
C × C → [0, 1]
CatSim(C s, C t) = ⊗(S C (a1, b1), S C (a2, b2), . . . , S C (am, bm)),
⊗ : [0, 1]m → [0, 1]
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C 1
C 2
CatSim(C s, C t)
C s C t
δ (aij, aij) = 0 ; ∀aij ∈ U j
dC (a j, a j) = 0
S C (a j, b j) = 1
δ (aij, aij) = δ (bij, aij)
aij ∈ U j
dC (a j, b j) = dC (b j, a j)
S C (a j, b j) = S C (b j, a j)
CatSim(C s, C t) =
CatSim(C t, C s) ∀a j, b j ∈ U j
a j = b j dC (a j , b j) > 0 =
dC (a j, a j)
S C (a j, b j) < 1
CatSim(C s, C t) < 1
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O = {O1, O2, . . . , Ok}
k
Os
Ot
O
p
atOs = {a1, a2, . . . , a p}
atOt = {b1, b2, . . . , b p}
p = r + n + m
r, n
m
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Os Ot Sim : O × O → [0, 1]
Sim(Os, Ot) = k1ClassicalSim(Os, Ot) + k2FuzzySim(Os, Ot)
ClassicalSim(Os, Ot) = αNumSim(Os, Ot) + βC atSim(Os, Ot)
Sim(Os, Ot) = k1 (αNumSim(Os, Ot) + βC atSim(Os, Ot))+k2FuzzySim(Os, Ot)
Os, Ot ∈
O
Simn : O × O → [0, 1]
Simn(Os, Ot) = NCF Sim(Os, Ot) = Sim(Os, Ot)
k1(α + β ) + k2
k1, α , β
k2
k1
k2
k1 + k2 > 0
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Simn(Os, Ot)
Os
Ot
NumSim(Os, Os) = CatSim(Os, Os) = FuzzySim(Os, Os) =
1
Sim(Os, Os) = k1(α + β ) + k2 Simn(Os, Os) = (k1(α +
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β ) + k2)/(k1(α + β ) + k2) = 1 Os Ot
Sim(Os, Ot) =
Sim(Ot, Os)
Simn(Os, Ot) = Simn(Ot, Os)
NumSim(Ot, Os) < 1
CatSim(Ot, Os) < 1
FuzzySim(Ot, Os) < 1
Ot = Os Sim(Ot, Os) < k1(α +β )+k2
Simn(Ot, Os) < (k1(α+β)+k2)
(k1(α+β)+k2) = 1 = S imn(Os, Os)
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P 1
P 2
•
Dq = [0, 1]
CDq = {1 − low, 2 − average, 3 − high}
•
D p = [100, 700]
•
Dnob =
{1, 2, 3, 4, 5, 6
}
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• D pt =
{house, f lat, bungalow, land, commercialproperty}
•
D pa = [0, 300]
atP 1 ={a1, a2, a3, a4, a5}
atP 2 = {b1, b2, b3, b4, b5}
atC 1 = {a1, a2}
atC 2 = {b1, b2}
a1
b1
ai1, bi1 ∈ CDq i = 1, 2, 3
a1 = a11
b1 = b21
dC (a1, b1) = δ 2(ai1, bi1) =
|a11
− b21
|/|3 −
1|
= |
3 −
2|/|3 −
1|
= 1/2
S C (a1, b1) = 1 − dC (a1, b1) = 1/2
a2
b2 a2 = a12 = house
b2 = b32 = bungalow
dC (a2, b2) = δ 1(ai2, bi2) = 1
S C (a2, b2) = 1 − dC (a2, b2) = 0
α1 = 0.8
α2 = 0.5
a1
a2
CatSim(P 1, P 2) = sum2
j=1α jS C (a j, b j)2 j=1 α j
= α1S C (a1, b1) + α2S C (a2, b2)
(α1 + α2)
= 0.8(0.5) + 0.5(0)
1.3
≈ 0.31
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atN 1 = {a3, a4, a5} atN 2 = {b3, b4, b5}
d(a3, b3) = |450 − 250| = 200
dN
(a3, b
3) = min(maxd(a3, b3) − m
M − m , 0 , 1
= min
(max
200 − 100
700 − 100, 0
, 1
= 1/6
S N (a3, b3) = 1−dN (a3, b3) = 5/6
S N (a5, b5) =
0.83
d dN (a4, b4) = (1−0)/(5 −0) = 1/5 S N (a4, b4) = 4/5
α3 = 0.8, α4 = 0.9
α5 = 0.25
a3, a4
a5
NumSim(P 1, P 2) =
5 j=3 α jS N a j , b j)5
j=3 α j
= 0.8(0.83) + 0.9(0.8) + 0.25(0.83)
1.95 )
= 0.82.
α = β = 1
Sim(P 1, P 2) = ClassicalSim(P 1, P 2) =
αNumSim(P 1, P 2) + βC atSim(P 1, P 2) = 0.31 + 0.82 = 1.13
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Simn(P 1, P 2) = NCSim(P 1, P 2) = S im(P 1, P 2)/2 = 0.56.
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• F Dq = {low, average, high}
• F D p = {cheap, moderate, expensive}
•
Dnob = {1, 2, 3, 4, 5, 6}
•
D pt = {house, f lat, bungalow, land, commercialproperty}
•
F D pa = {small, medium, big}
atP 1 = {a1, a2, a3, a4, a5}
atP 2 = {b1, b2, b3, b4, b5}
atF 1 = {a1, a2, a5}
atF 2 =
{b1, b2, b5}
atN 1 = {a3}
atN 2 = {b3}
atC 1 = {a4}
atC 2 = {b4}
m j = 3
j = 1, 2, 5
a1
b1
a1 = {0.00/Low, 0.32/Regular, 0.46/High},
b1 = {0.01/Low, 0.61/Regular, 0.14/High}.
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x = 0.75
y =
0.60
d(a1, b1) =
m1
i=1 |µAi1(x) − µAi1(y)|2m1
1/2
=
|0.0 − 0.01|2 + |0.32 − 0.61|2 + |0.46 − 0.14|23
1/2
= 0.25.
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a1 b1 k1 ≥ 0
S (a1, b1) = 1 − 0.25
1 + ka1(0.25).
ka1
ka1 = 1
S (a1, b1) = 0.60 a2 =
{0.00/cheap, 0.84/moderate, 0.25/expensive
}
b2 =
{0.25/cheap, 0.61/moderate, 0.01/expensive}
a5 = {0.00/small, 0.41/medium, 0.75/big}
b5 = {0.02/small, 0.88/med−ium, 0.33/big}
S (a2, b2) = 0.67
S (a5, b5) = 0.47
FuzzySim(P 1, P 2) =
(0.8(0.60) + 0.8(0.67) + 0.25(0.47))/1.85 = 0.28 NumSim(P 1, P 2) = 0.9(0.8) =
0.72
CatSim(P 1, P 2) = 0.5(0) = 0
α = β = 1
ClassicalSim(P 1,
P 2) = αNumSim(P 1, P 2)+βCatSim(P 1, P 2) = 0.72
k1 = k2 = 1
Sim(o1, o2) = k1(αNumSim(o1, o2) + βC atSim(o1, o2)) + k2FuzzySim(o1, o2)
= 0.72 + 0.28 = 1
Simn(P 1, P 2) = S im(P 1, P 2)/3 = 0.33.
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H 0
α = 0.05
H 1
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•
p −value = 0.00046 < α
•
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p − value = 0.21891 > α
•
p − value = 0.75099 > α
ith
ith
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Chapter6
a
b
s(a, b)
A
B
s(a, b)
s(a, b) = S (A, B) = θf (A ∩ B) − αf (A − B) − βf (B − A).
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s(a, b) = S (A, B) = θf (A ∩ B)
θf (A ∩ B) − αf (A − B) − βf (B − A).
A∩B
A
B
A − B
A
B
B − A
B
A
θ
α
β
f
f
f
f (A ∪ B) = f (A) + f (B)
A
B
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A
B
U
A
B
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s : F (U ) × F (U ) → [0, 1]
s(A, B) = F s(f (A ∩ B), f (A − B), f (B − A))
F s : R+ × R+ × R+ → [0, 1]
f
f : F (U )
→ R+
U
A ∈ F (U )
f (A) = card(A) = |A| =x∈U
µA(x)
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A
f (A) =
x∈U
µA(x)dx
A
N
σ : F (U ) → R+ ∩ 0
a, b ∈ [0, 1]
x, y ∈ U
A, B ∈ F (U )
σ(1/x) = 1
a ≤ b
σ(a/x) ≤ σ(b/x)
A ∩ B = φ
σ(A ∪ B) = σ(A) + σ(B)
A ∈ F (U )
f (A)
A
1/x
x
x
f (1/x) =
|1/x
|= x
∈U µA(x) = 0+ . . .+0+1+0+
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. . .+0 = 1, x ∈ U a ≥ b
f (a/x) =
x∈U µA(x) =
x∈U a ≥
x∈U b = f (b/x)
A
B
f (A ∪ B) =
x∈U µ(A ∪ B)(x) =
x∈U µA(x) +
x∈U µB(x) = f (A) + f (B)
A, B ∈ F (U )
Ae ∈ F (U )
e ∈ J
f
f (
e∈J Ae) =
e∈J f (Ae)
Ae ∩ Ae = φ;
e = e
A ∈ C (U ) ⇒ f (A) = |supp(A)
A ⊂ B ⇒ f (A) ≤ f (B)
|core(A)| ≤ f (A) ≤ |supp(A)|
f (A) + f (B) = f (A ∪ B) + f (A ∩ B)
f (
e∈J (Ae) ≤e∈J f (Ae)
A ⊂ B ⇒ supp(A) ⊂ supp(B) ⇒A ∩ B = A = 0
|supp(A)| ≤ |supp(B)| ⇒ f (A) = x∈supp(A) µA(x) ≤ f (B)
core(A) ⊂ A ⊂ supp(A)
A ∪ B
A ∩ B
f (A ∪ B) + f (A ∩ B) =
x∈U µ(A ∪ B)(x) +
x∈U µ(A ∩ B)(x)
=
x∈U [maxx∈U (µA(x), µB(x))] +
x∈U [minx∈U (µA(x), µB(x))]
=
x∈U [maxx∈U (µA(x), µB(x)) + minx∈U (µA(x), µB(x))]
= f (A) + f (B)
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f (A) + f (B) = f (A∪ B) + f (A∩ B) f (A∪B) ≤ f (A) + f (B)
A
B
A ∩ B
µA∩B = minx∈U
[µA(x), µB(x)]
A − B
A
B
U
A ∩ Bc
U
A − B = {x ∈ U |x ∈ A
x ∈ B}
A, B ∈ F (U )
A − B = {x ∈ U |x ∈F A and x ∈F B}
∈F : U × F (U ) → [0, 1]
∈F (x, A) = µA(x)
∈F (x, A) = 1 − µA(x)
A − B
A
B
µ(A −1 B)
µA−1B(x) = minx∈U
[µA(x), 1 − µB(x)] ∀x ∈ U
A
B
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µA−2B(x) = maxx∈U
[0, µA(x) − µB(x)]
µA−3B(x) =
µA(x) µB(x) = 0
0
µB(x) > 0
µA−1B(x) > µA−2B(x)
µA−3B(x) < µA−2B(x)
x ∈ U
−2
A
B
−2
A
B
A −2 B
A
B
B ⊂ A
A ⊂ B
A = B
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A B
A−1 B
A−2 B
A−3 B
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0 2 4 6 8 100
0.5
1Inputs: Two fuzzy sets A and B
ABmin(A,B)
0 2 4 6 8 100
0.5
1
Output: Fuzzy difference: FD(A,B)=A−B
A−B
0 2 4 6 8 100
0.5
1
Inputs: Two fuzzy sets A and B
A
Bmin(A,B)
0 2 4 6 8 100
0.5
1
Output: Fuzzy difference: FD(A,B)=A−B
A−B
0 2 4 6 8 100
0.5
1
Inputs: Two fuzzy sets A and B
0 2 4 6 8 100
0.5
1Output: Fuzzy difference: FD(A,B)=A−B
A
Bmin(A,B)
A−B
0 2 4 6 8 100
0.5
1
Inputs: Two fuzzy sets A and B
0 2 4 6 8 100
0.5
1
Output: Fuzzy difference: FD(A,B)=A−B
AB
min(A,B)
A−B
0 2 4 6 8 100
0.5
1
Inputs: Two fuzzy sets A and B
0 2 4 6 8 100
0.5
1
Output: Fuzzy difference: FD(A,B)=A−B
ABmin(A,B)
A−B
0 2 4 6 8 100
0.5
1
Inputs: Two fuzzy sets A and B
A
Bmin(A,B)
0 2 4 6 8 100
0.5
1
Output: Fuzzy difference: FD(A,B)=A−B
A−B
0 2 4 6 8 100
0.5
1
Inputs: Two fuzzy sets A and B
0 2 4 6 8 100
0.5
1Output: Fuzzy difference: FD(A,B)=A−B
AB
min(A,B)
A−B
0 2 4 6 8 100
0.5
1
Inputs: Two fuzzy sets A and B
0 2 4 6 8 100
0.5
1
Output: Fuzzy difference: FD(A,B)=A−B
AB
min(A,B)
A−B
0 2 4 6 8 100
0.5
1
Inputs: Two fuzzy sets A and B
AB
min(A,B)
0 2 4 6 8 10−1
0
1
Output: Fuzzy difference: FD(A,B)=A−B
A−B
0 2 4 6 8 100
0.5
1
Inputs: Two fuzzy sets A and B
0 2 4 6 8 10−1
0
1Output: Fuzzy difference: FD(A,B)=A−B
A
Bmin(A,B)
A−B
−2
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−2 −
A, B ∈ F (U )
−
F (U )
A ⊆ B
A − B = φ
A ⊆ A
A − B ⊆ A − B
A
⊆ B ⇔ µA(x) ≤ µB(x) ∀ x ∈ U
µA(x) − µB(x) ≤ 0
A − B
µA−B(x) = max[0, µA(x) − µB(x)]; ∀ x ∈ U ⇒ µA(x) −µB(x) = 0 ⇒ A− B = φ
A ⊆ A ⇒ µA(x) ≤ µA(x) ⇒ µA(x)−µB(x) ≤ µA(x)−µB(x) ⇒
max[0, µA(x)] − µB(x)) ≤ max[0, µA(x) − µB(x)] ⇒ µA−B(x) ≤ µA−B(x) ⇒A − B ⊆ A − B
A, B ∈ F (U )
f (A ∩ B) = card(A ∩ B) = |A ∩ B|
A
B
f (A − B)
f (B
−A)
f (A ∩ B) = card(A ∩ B) = |A ∩ B| =x∈U
µA∩B(x) =x∈U
minx∈U
[µA(x), µB(x)]
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f (A−B) = card(A − B) = |A− B| =x∈U
µA−B(x) =x∈U
(maxx∈U
[0, µA(x) −µB(x)])
S (A, B) = α|A ∩ B|
α|A ∩ B| + β |A − B| + γ |B − A|
α > 0
β, γ ≥ 0
α
β = γ
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o1
o2 ato1 =
{a1, a2,...,an} ato2 = {b1, b2,...,bn}
n
n
ai = {Ai1, Ai2,...,Aimi}
bi = {Bi1, Bi2,...,Bimi}
mi
i
th
i = 1, 2, . . . , n
Age = {(0.2/young), (0.75/middelage)}
ai = {Aimai
}
bi = {Bimbi
} mai, mbi ∈ {1, 2,...,mi}
young
young
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S : ato1 × ato1 → [0, 1]
S (ai, bi) = s
Aimai, Bimbi
S : F (U i) × F (U i) → [0, 1]
S (ai, bi) = α|Aimai ∩ Bimbi |α|Aimai
∩ Bimbi| + β |Aimai
− Bimbi| + γ |Bimbi
− Aimai|
α > 0
β, γ ≥ 0
ai
bi
o1 o2
U i ith
S (a, b) ≤ 1
S (a, b) = 1
a = b
S (TomAge,JohnAge) =
S (young, young) = 1
S (JohnAge, DavidAge) = S (young, middle
−aged)
= 1
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S
S (a, b) = S (a, b)
s(A, B) = S (B, A)
β = γ
s
β = γ
f (A − B) =
f (B − A)
f
S (A, B) =
f (A∩B, A−B, B−A)
A∩B
A − B
B − A
m
OF = {o1, o2,...,om}
n
os, ot ∈ OF
Sim : OF × OF → [0, 1]
Sim(os, ot) = ⊗Sim (S (a1, b1), S (a2, b2),...,S (an, bn))
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⊗Sim : [0, 1]n → [0, 1]
ai
wi
∀i; wi ∈ [0, 1]
wi
Sim(os, ot) =
ni=1 wiS (ai, bi)ni=1 wi
; wi ∈ [0, 1]
Sim(os, ot) = min[S (a1, b1), S (a2, b2),...,S (an, bn)]
Sim(os, ot) = min[S (a1, b1), S (a2, b2),...,S (an, bn)]
max[S (a1, b1), S (a2, b2),...,S (an, bn)]
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Do =
[0, 1]
Do = [0, 600]
DdfUni = [0, 10]
F Do = {low, average, high}
Do F DP = {cheap, moderate,
expensive} dfUni
F DdfUni = {close − to,far − from}
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0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 10
0.5
1
(a) quality
low average
high
0 100 200 300 400 500 600
0
0.5
1
(b) price
D e g r e e o f m e m b e r s h i p
cheap moderate expensive
0 1 2 3 4 5 6 7 8 9 10
0
0.5
1
(c) dfUni
close−to far−from
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α = β = γ = 1
s
s
s
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0 5 10 15 20 25 30 35 400
0.2
0.4
0.6
0.8
1
Student Rooms
S i m i l a r i t y D e g r e e s
0 5 10 15 20 25 30 35 400
0.2
0.4
0.6
0.8
1
Student Rooms
S i m i l a r i t y D e g r e e s
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0
0.2
0.4
0.6
0.8
1
Student Rooms
S i m i l a r i t y D e g r e e s
α = β = γ = 1
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wquality = w price = wdfUni = 1
wquality = 0.8, w price = 0.5, wdfUni = 1
α, β
γ
W A
Min
Min/Max
α
β
γ
s(average, high) = 0.1325 s(high, average) = 0.1107
α = 1
β = 0.5
γ = 0.8
s(average, high) = 0.1107 s(high, average) = 0.1325
α = 1 β = 0.8
γ = 0.5
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0.2
0.4
0.6
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1
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S i m i l a r i t y D e g r e e s
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0.2
0.4
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1
Student Rooms
S i m i l a r i t y D e g r e e s
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0.2
0.4
0.6
0.8
1
Student Rooms
S i m i l a r i t y D e g r e e s
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0.2
0.4
0.6
0.8
1
Student Rooms
S i m i l a r i t y D e g r e e s
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Min/Max
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α = 1, β = 0.5
γ = 0.8
s
α = 1, β = 0.8
γ = 0.5
s
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Chapter7
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•
•
•
W A
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D = {o1, o2, . . . , on}
p
p
D
D
f
c
Df
V = {v1, v2, . . . , vc}
1/c
ni=1
c j=1
FuzzySim(oi, v j)
µij =
cl=1
FuzzySim(oi, vl)
FuzzySim(oi, v j)2/m−1
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v j = ot
nji=1
sim(ot, oi) = max1≤r≤nj
njq=1
sim(oq, or)
n j
jth
1 ≤ r ≤ n j
min(FuzzSim(centres, newCentres) > .
[0, 1]
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•
•
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sw(oi)
oi
C j
C j
oi
a(i) =
oi C j.
C l
C j
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d(oi, C l) =
oi C l.
C j = C l
oi
b(oi) = minC l=C j
d(oi, C l)
oi
oi
sw(oi)
sw(oi) = a(oi) − b(oi)
max[a(oi), b(oi)]
max a(oi), b(oi)
sw(oi) =
1 − a(oi)
b(oi)
a(oi) < b(oi)
0 a(oi) = b(oi)
b(oi)
a(oi) − 1
a(oi) > b(oi)
−1 ≤ sw(oi) ≤ 1
b(oi)
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b(oi) = maxC l=C j
d(oi, C l)
sw(oi)
sw(oi) =
1 − b(oi)
a(oi)
a(oi) > b(oi)
0
a(oi) = b(oi)
a(oi)
b(oi)− 1
a(oi) < b(oi)
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C = 3 m = 2
90%
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0 . 1
0 . 2
0 . 3
0 . 4
0 . 5
0 . 6
0 . 7
0 . 8
Index
f c l Q u 1 $ m m e m b e r s h i p [ , 1 ]
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0 . 1
0 . 2
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0 . 7
Index
f c l Q u 1 $ m m e m b e r s h i p [ , 2 ]
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0 . 2
0 . 3
0 . 4
0 . 5
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0 . 7
Index
f c l Q u 1 $ m m e m b e r s h
i p [ , 3 ]
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Index
f c l P r 1 $ m m e m b e r s h i p [ , 1 ]
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0 . 1
0 .
2
0 . 3
0 . 4
0 . 5
0 . 6
Index
f c l P r 1 $ m m e m b e r s h i p [ , 2 ]
0 10 20 30 40 50
0 . 1
0 . 2
0 . 3
0 . 4
0 . 5
0 . 6
0 . 7
0 . 8
Index
f c l P r 1 $ m m e m b e r s h i p [ , 3 ]
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Chapter8
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•
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•
[0, 1]
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W A
min
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min/max
W A
Min
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•
•
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•
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AppendixA
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AppendixB
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dfUni
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AppendixC
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