Instance Selection Using Evolutionary Algorithms: An Experimental Study - Advanced Techniques in Knowledge Discovery and Data Mining - page 148

Table 5.5. Results using the S 1 and s 1 sets obtained from the classica l algorithms.

MCS DROP1

Database 1-NN C4.5 % 1-NN C4.5 %

Pen-based 99.00 98.90 50.22 86.58 99 98.82

Satimage 88.81 95.40 52.37 77.67 97.2 96.48

Thyroid 91.37 99.80 52.36 52.20 99.9 99.9

Average 93.06 98.03 51.65 72.15 98.70 98.40

Table 5.6. Results using the S 1 and s 1 sets obtained from the EAs.

CHC PBIL

Database 1-NN C4.5 % 1-NN C4.5 %

Pen-based 98.29 98.90 87.35 83.33 99.10 99.68

Satimage 86.22 97.00 91.48 85.94 96.60 96.76

Thyroid 91.15 99.90 89.31 88.91 99.90 96.38

Average 91.89 98.60 89.38 86.06 98.53 97.61

CHC PBIL

Database 1-NN C4.5 % 1-NN C4.5 %

Pen-based 98.29 98.90 87.35 83.33 99.10 99.68

Satimage 86.22 97.00 91.48 85.94 96.60 96.76

Thyroid 91.15 99.90 89.31 88.91 99.90 96.38

Average 91.89 98.60 89.38 86.06 98.53 97.61

Average

Database 1-NN C4.5 %

Pen-based 92.27 99.00 94.38

Satimage 83.74 97.20 95.54

Thyroid 91.02 99.90 95.11

Average 89.01 98.70 95.01

Table 5.7. Results using the S 2 and s 2 sets obtained from the classica l algorithms.

MCS DROP1

Database 1-NN C4.5 %

1-NN C4.5 %

Pen-based

99.05 95.20 50.16 85.53 99.1 98.83

Satimage 89.64 97.40 52.37 82.18 96.8 96.31

Thyroid 91.77 99.50 51.99 43.59 99.9 99.9

Average 93.49 97.37 51.51 70.43 98.60 98.35