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Table 5.1
Forward selection of attributes basing on performance of minimal cover and all rules on examples decision algorithms generated
(a)
(b)
(c)
Minimal cover algorithm
All rules on examples algorithm
(d)
(e)
(f)
(g)
(h)
(d)
(e)
(f)
(g)
(h)
1
that
gain
3
2
25.00
3
2
25.00
2
by
cost
29
8
8
7
58.33
27
15
6
13
58.33
3
from
cost
38
15
20
9
81.67
71
37
16
22
78.33
4
as
cost
38
17
9
11
86.67
154
54
11
35
88.33
5
what
gain
30
20
19
8
85.00
241
119
7
103
91.67
6
of
cost
32
24
9
16
91.67
328
191
7
146
86.67
7
not
gain
34
27
5
23
91.67
468
237
11
150
86.67
8
if
gain
34
32
4
22
83.33
453
384
12
230
88.33
9
!
gain
37
35
6
17
83.33
569
453
12
258
88.33
10
.
gain
33
31
6
15
76.67
756
628
30
67
90.00
11
this
cost
34
9
12
83.33
878
31
55
90.00
12
in
cost
32
9
11
80.00
1
,
155
31
66
90.00
13
(
gain
44
2
31
80.00
1
,
424
31
73
90.00
14
:
cost
50
2
36
80.00
2
,
004
31
77
90.00
15
-
cost
52
2
38
80.00
3
,
167
31
80
90.00
16
with
cost
59
2
45
83.33
4
,
238
31
82
90.00
17
,
cost
61
2
43
83.33
6
,
307
31
89
90.00
18
for
cost
65
2
48
81.67
7
,
567
31
89
90.00
19
but
cost
63
85.00
9
,
524
31
89
90.00
20
at
cost
63
85.00
11
,
503
31
89
90.00
(continued)
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