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Table 4 Weights assigned to rules using datasets D1 and D2

From: Situation awareness modeling for emergency management on offshore platforms

#

Rules

w D1

w D2

1

¬L(ag,al,t) ⇒ ¬R(ag,al,t).

∞

∞

2

L(ag,GPA,t)^HITR(ag,MSH,t)^BST(ag, + al,t) ⇒ R(ag, + al,t)

2.09

1.95

3

L(ag,PAPA,t)^HITR(ag,MSH,t)^BST(ag, + al,t) ⇒ R(ag, + al,t)

0.57

0.15

4

L(ag,PAPA,t)^HITR(ag,LFB,t)^BST(ag, + al,t) ⇒ R(ag, + al,t)

2.66

2.71

5

L(ag,al,t) ⇒ HSES(ag)

1.27

1.4

6

L(ag,al,t)^ ¬R(ag,al,t) ⇒ HSES(ag)

0.32

0.36

7

ST(ag,thrt,t) ⇒ HSES(ag)

0.93

1.01

8

(HFO(ag,PA_GPA,t)^FPA(ag, + p_a,t)^KETPA(+p_a,FIRE))v(ST(ag,SMK_VENT,t)^KETT(+thrt, + eTyp))v(L(ag,GPA,t)^HITR(ag,MSH,t)^ KETA(+al, + eTyp)^BST(ag, + al,t)) ⇒ HES(ag, + eTyp,t)

0.30

0.30

9

(HFO(ag,PA_GPA,t)^FPA(ag, + p_a,t)^KETPA(+p_a,FIRE))v(ST(ag,SMK_VENT,t)^KETT(+thrt, + eTyp))v(L(ag,GPA,t)^HITR(ag,LFB,t)^ KETA(+al, + eTyp)^BST(ag, + al,t)) ⇒ HES(ag, + eTyp,t)

0.20

0.25

10

HES(ag,FIRE,t) ⇒ ¬HES(ag,EVACUATE,t)

1.38

1.47

11

HES(ag,EVACUATE,t) ⇒ ¬HES(ag,FIRE,t)

1.38

1.47

12

HES(ag,FIRE,t0)^HES(ag,EVACUATE,t1)^Gt(t1,t0) ⇒ ¬HES(ag,FIRE,t1)

− 1.54

− 0.45

  1. Only 12 out of a total of 59 ground rules obtained by different groundings of the rules in Table 2 are shown for brevity