Table 2 Results: Hierarchy Specific SVM Score Thresholding (atc weights). The table presents results when a single SVM score threshold is selected for each hierarchy. These results show high improvements when compared with results obtained without thresholds (compare with Table 1).

Hierarchy

Split

Threshold

Recall

Precision

Fscore

Recall

Precision

Fscore

MF

1

-0.84

0.5624

0.4136

0.4504

0.5992

0.4258

0.4684

MF

2

-0.86

0.5923

0.3835

0.4390

0.6775

0.4073

0.4769

MF

3

-0.86

0.5954

0.3734

0.4328

0.6817

0.3874

0.4684

MF

4

-0.84

0.5713

0.4046

0.449

0.6857

0.4487

0.5134

MF

5

-0.85

0.5921

0.4076

0.4541

0.6772

0.3945

0.4727

MF

Average

na

0.5827

0.3965

0.4451

0.6643

0.4128

0.48

CC

1

-0.82

0.4799

0.3185

0.3627

0.5301

0.3531

0.3986

CC

2

-0.82

0.4823

0.3214

0.3665

0.5359

0.3516

0.4006

CC

3

-0.86

0.5287

0.2976

0.3590

0.6553

0.3895

0.4571

CC

4

-0.85

0.5122

0.2997

0.3571

0.5703

0.2976

0.3715

CC

5

-0.85

0.5222

0.315

0.3714

0.599

0.29

0.3767

CC

Average

na

0.5051

0.3104

0.3633

0.5781

0.3364

0.4009

BP

1

-0.87

0.4304

0.2378

0.2847

0.4722

0.2585

0.3079

BP

2

-0.87

0.4377

0.2442

0.2908

0.5259

0.2713

0.3362

BP

3

-0.85

0.4019

0.2615

0.2948

0.4908

0.2884

0.3392

BP

4

-0.84

0.3706

0.2556

0.2794

0.4854

0.2966

0.3484

BP

5

-0.87

0.4519

0.2600

0.3069

0.4608

0.2220

0.2791

BP

Average

na

0.4185

0.2518

0.2913

0.4870

0.2674

0.3222