Table 6 The basic topological features of 17 real directed networks.

From: Link prediction in complex networks via matrix perturbation and decomposition

Network

|V|

|E|

C

r

k

H

Bison

26

314

0.5099

4.5204

7.0769

1.3101

Cattle

28

217

0.2186

7.6487

0.8571

2.3333

Football

35

118

0.3390

−0.1763

6.7429

1.4881

Gramdry

69

879

0.5502

−0.2968

25.4783

1.2740

Gramwet

69

880

0.5521

−0.2983

25.5072

1.2746

Cypdry

71

618

0.4995

−0.2749

17.4085

1.4339

Cypwet

71

612

0.5004

−0.2773

17.2394

1.4369

Mangdry

97

1445

0.4608

−0.1519

29.7938

1.2613

Mangwet

97

1446

0.4683

−0.1506

29.8144

1.2656

Polbooks

105

441

0.4875

−0.1279

8.4000

1.4207

Baydry

128

2106

0.3346

−0.1044

32.9063

1.2307

Baywet

128

2075

0.3346

−0.1117

32.4219

1.2370

C. elegans

306

2345

0.1245

−0.2270

1.2876

2.7912

USAir

332

2126

0.0130

−0.2100

12.8070

4.9150

Email-Eu

1005

24929

0.2835

−0.0678

17.6418

2.7559

PB

1224

19087

0.1986

−0.2215

3.7876

6.7734

CollegeMsg

1899

59835

0.1685

0.3495

247.6388

18.5074

  1. |V| and |E| represent the total numbers of nodes and links, respectively. r denotes the assortative coefficient. 〈k〉 is the average degree. H is the degree heterogeneity denoted as H = 〈k 2〉/〈k〉.