Ranking

Keywords

Frequency

Ranking

Keywords

Frequency

1

emergency logistics

1121

11

security mechanism

40

2

emergency supplies

213

12

ant colony algorithm

39

3

natural disasters

173

13

path optimization

37

4

site selection

145

14

supply chain

33

5

emergency

133

15

military logistics

32

6

genetic algorithm

89

16

military and civilian integration

28

7

emergency management

87

17

human resources

22

8

robust optimization

62

18

countermeasures

21

9

logistics activity

62

19

emergency rescue

21

10

system building

50

20

aggravated

21