1.2.

3.

4.

5.

6.

7.

(

A B2

A B AB

A BB (

Lift

Lift = ( )

Lift

Quinla

n ID3

age?

overcast

student? credit rating?

40

no no yes yes

yes

31..40

1 2 8 6 14 9 11

3 7 12 13

4 5 10

no yes fair excellent

: buys_computer”

Williams & Lance(1977)

Bank of America

14

(

K-means

1.

2.1.

2.

3.

3.

4.5. 3&4

K-means

1. 2.

K-means

3. 4.

K-means

5.

AAA,AA,A,BBB,BB9 8 7 6 5 …

5

20 1 2

id

input

input

input

input

clst.xls

clst.xls clst

EM clst

_COL0 [ ]

[id]

[ ] [

]

[ ]

ID

•

•

•

[ ]

[ ]

[ ]

[ ][ ][

] 3

[ ]

[ ]

[ ]

[ ]

[ ]

[ ]

[ ]

[] [ ]

[ ]

Y

[ ] []

[ ]

[ ] [ ]

A4 4-8

SFC-SFS