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# ΠΛΗ31 ΜΑΘΗΜΑ 2.5 (ΕΚΤΥΠΩΣΗ)

ΠΕΡΙΕΧΟΜΕΝΑ ΜΑΘΗΜΑΤΟΣ:
Α. Σκοπός του Μαθήματος
Β.Θεωρία
1) Συντελεστές Βεβαιότητας
2) Κανόνες με Συντελεστές
3) Μαρτυρίες
4) Ισχυρισμοί
5) Δίκτυο Συλλογισμού
Γ.Ασκήσεις

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### ΠΛΗ31 ΜΑΘΗΜΑ 2.5 (ΕΚΤΥΠΩΣΗ)

1. 1. 31 2: 2.5: !"# ! " # ! " #\$ \$ % & ' ( . \$"% " " &" " " ' : %'% (" )*) %'% (" (-) ! " #\$ (-) %'% (" (-) . + * ' 4. 1. , - ) . )*) % * %! " #\$ . )*) % * % ) \$- ( (" * & '/" \$ \$ % " -1 * " +1 %" " '/ . )*) " % " \$ % )*) : • )\$ \$ : • \$ -1 " '/ % &# " % " \$ . • \$ +1 " '/ % 0 ,1 0 " % " \$ . • " \$ \$ * \$ * "%"%" ' * : • 2%" ' " " )\$ \$ " \$ . IF \$ THEN % ( )
2. 2. . + * ' 1. 1. , - ) . )*) % * ! " #\$ 3 0 : ' % \$ * \$ * : R1: if shape is round then fruit is orange (0.5) R2: if shape is round then fruit is apricot (0.3)then fruit is apricot (0.3) R3: if shape is round and surface is weasand then fruit is orange (0.85) R4: if shape is round and color is yellow then fruit is apricot (0.6) R5: if shape is round and color is yellow and size is small then fruit is apricot (0.8) . + * ' 1. 1. , - ) . )*) % * &! " #\$ ( ) : '\$ " ") "# * \$ * " ('\$ " ") "# " \$ * % )*) ' # " " % ( ( %" : • '/ &" % * \$ * . • ( ' " \$ % " "%"'" %" % . • )) ' " %" * ' " &* \$ * . ( ) : '\$ " ") "# * \$ * 11: fruit is orange Y2: fruit is apricot ' ( 0.5 ( 0.85 ' ( 0.3 (% 0.6 ( % 0.8 . + * ' 1. 1. , - ) . )*) % * )! " #\$ • % &" ( ( )\$ \$ ( (" * \$- * \$ * & / \$ % " -1 " +1, ) 4" : • 2%" ' %" (' % " &#" " \$ " \$ IF \$ ( ) THEN % ( ) • " \$ * " % " & * * % * " # . • &" ' ) " \$ , \$ " " \$ (' % " #%": • &" AND \$ * \$ * % )" & % ' * " \$ . • &" OR \$ * \$ * % )" ) % ' * " \$ . [R]= x . + * ' 1. 1. , - ) . )*) % * *! " #\$ 3 0 (... & ): & % ( - " # (' . ) ' " & ) )" : - : «shape is round» % : 0.9 - : «color is yellow» % : 0.75% : 0.75 - : «size is small» % : 0.65 - : «surface is weasand» % : 0.70
3. 3. . + * ' 1. 1. , - ) . )*) % * +! " #\$ 3 0 (... & ): ( /" ' " * \$ * &" : - : «shape is round» % : 0.9 - : «surface is weasand» % : 0.70 - : «color is yellow» % : 0.75 R1: if shape is round then fruit is orange (0.5) R2: if shape is round then fruit is apricot (0.3) R3: - : «color is yellow» % : 0.75 - : «size is small» % : 0.65 : [R1] = 0.9 x 0.5 = 0.450 [R2] = 0.9 x 0.3 = 0.270 [R3] = 0.7 x 0.85 = 0.595 [R4] = 0.75 x 0.6 = 0.450 [R5] = 0.65 x 0.8 = 0.580 R3: if shape is round and surface is weasand then fruit is orange (0.85) R4: if shape is round and color is yellow then fruit is apricot (0.6) R5: if shape is round and color is yellow and size is small then fruit is apricot (0.8) . + * ' 1. 1. , - ) . )*) % * ,! " #\$ • & "%" ' ' ( # " " - ) % % " " ' " & " 0.2 • (#" ' )"%" "# ( 4" \$"# \$ ( * R1 \$ R2) %" )" " '( " % 1, " \$ " % " 1 ) % " #%": • % &" % " \$ (%.&. 3), . )" ( " %" % " (#" % - " \$ ( * [1’]) " "%"'" ( /" " " 3" \$ \$.".\$. • . . + * ' 1. 1. , - ) . )*) % * ! " #\$ 5&" : [R1] = 0.9 x 0.5 = 0.450 [R2] = 0.9 x 0.3 = 0.270 [R3] = 0.7 x 0.85 = 0.595 [R4] = 0.75 x 0.6 = 0.450 [R5] = 0.65 x 0.8 = 0.580 0.9 0.7 0.9 0.75 0.65 . \$ 4 ") 1 '( % \$ * \$ * . ! " #\$ R1 if today is rain then tomorrow is rain (0.5) R4 if today is rain and rainfall is low then tomorrow is dry (0.6) R2 if today is dry then tomorrow is dry (0.5) R3 if today is dry and temperature is high then tomorrow is rain (0.65) then tomorrow is dry (0.6) R5 if today is rain and rainfall is low and temperature is low then tomorrow is dry (0.7)
4. 4. 6 " % \$ * ( ")" (U=& , S= # ). ! " #\$ S: What is the weather today? U: rain S: To what degree you believe that today is rain? U: 0.9 S: What is the rainfall today? U: low S: To what degree you believe the rainfall is low? U: 0.85U: 0.85 S: What is the temperature today? U: low S: To what degree you believe the temperature is low? U: 0.95 ( ) & ( ' " ('\$ " ") "# * \$ * %" 4 ' " \$ " " % % * ( ")". %! " #\$ ( ) 1%" ")' " * %" * \$ %"4 ' %" ' \$("& . ! " #\$ . \$ 4 ") 2 '( % \$ * \$ * . &! " #\$ R1 IF weather is overcast THEN playtennis is no (0.4) R2 R4 IF weather is overcast AND wind is weak AND humidity is highR2 IF weather is overcast AND wind is weak THEN playtennis is yes (0.6) R3 IF weather is overcast AND wind is weak AND temperature is medium THEN playtennis is yes (0.75) AND humidity is high THEN playtennis is no (0.6) R5 IF weather is overcast AND wind is weak AND temperature is medium AND humidity is normal THEN playtennis is yes (0.9)
5. 5. 6 " % \$ * ( ")" (U=& , S= # ). )! " #\$ S: What is the weather? U: overcast S: To what degree do you believe that weather is overcast? U: 0.7 S: What is the wind? U: weak S: To what degree do you believe that wind is weak? U: 0.8U: 0.8 S: What is the temperature? U: medium S: To what degree do you believe that temperature is medium? U: 0.7 S: What is the humidity? U: normal S: To what degree do you believe that humidity is normal? U: 0.6 ( ) & ( ' " ('\$ " ") "# * \$ * %" 4 ' " \$ " . *! " #\$ ( ) 1%" ")' " * %" * \$ %"4 ' %" ' \$("& me * % * " & . +! " #\$

ΠΕΡΙΕΧΟΜΕΝΑ ΜΑΘΗΜΑΤΟΣ: Α. Σκοπός του Μαθήματος Β.Θεωρία 1) Συντελεστές Βεβαιότητας 2) Κανόνες με Συντελεστές 3) Μαρτυρίες 4) Ισχυρισμοί 5) Δίκτυο Συλλογισμού Γ.Ασκήσεις

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