i = 1 3 A i o _ α ( D 1 )

i = 1 3 A i β ¯ o ( D 1 )

i = 1 3 A i _ α o ( D 2 )

i = 1 3 A i β ¯ o ( D 2 )

i = 1 3 A i p _ α ( D 1 )

i = 1 3 A i β ¯ p ( D 1 )

i = 1 3 A i _ α p ( D 2 )

i = 1 3 A i β ¯ p ( D 2 )

α = 0.8 β = 0.1

ϕ

ϕ

ϕ

ϕ

ϕ

U

ϕ

U

α = 0.7 β = 0.1

{ x 1 , x 2 , x 3 , x 4 }

ϕ

{ x 2 , x 4 , x 5 , x 7 }

ϕ

{ x 1 , x 2 , x 3 , x 4 }

U

{ x 2 , x 4 , x 5 , x 7 }

U

α = 0.6 β = 0.4

{ x 1 , x 2 , x 3 , x 4 , x 6 }

ϕ

{ x 1 , x 2 , x 4 , x 5 , x 6 , x 7 , x 8 }

ϕ

{ x 1 , x 3 }

U

{ x 2 , x 5 , x 7 }

U