DGiven the following IF-THEN rule base and dynamic input with certaintyfactors, (CF) value:Dynamic InputA, with certainty 1.0.B, with certainty 0.8C, with certainty 0.9D, with certainty 0.7The rules to calculate the CF values for multiple rules:ii)●iii)•Rule BaseRI: if A and B then X (CF = 0.5)R2: if C or D then x (CF=0.7)●CF(C)CF(R1)and CF(R2) are positive.= CF(R1) + CF(R2) - (CF(R1) x CF(R2)), when bothCF(C) = CF(R1) + CF(R2) + (CF(R1) x CF(R2)), when bothCF(R1) and CF(R2) are negativeBased on rules given above calculate the CF values for X:i)CF A and B, CF1(X)(CF(R1) + CF(R2))/(1-MIN {|CF(R1)|, |CF(R2)] }), when thesigns are differentCF C or D, CF2(X)CF(X)Given the followings rule and certainty factors:IFThe sky is darkAND The wind is getting strongerTHEN It will rainCertainty Factors:The sky is dark is CF = 1.0CF = 0.8

Combining Certainty Factors:Dynamic Certainty for a Conclusion:Given a rule R = "if H then C with…

Given the following IF-THEN rule base and dynamic input with certainty factors, (CF) value: Rule Base RI: if A and B then X (CF = 0.5) R2: if C or D then x (CF=0.7) Dynamic Input A, with certainty 1.0 B, with certainty 0.8 C, with certainty 0.9 D, with certainty 0.7 The rules to calculate the CF values for multiple rules: . CF(C): CF(R1) iii) CF(R1) + CF(R2) - (CF(R1) x CF(R2)), when both and CF(R2) are positive. CF(C)=CF(R1) + CF(R2)+(CF(R1) x CF(R2)), when both CF(R1) and CF(R2) are negative (CF(R1) + CF(R2))/(1-MIN {|CF(R1), CF(R2)| }), when the signs are different Based on rules given above calculate the CF values for X: i) CF A and B, CF1(X) ii) CF C or D, CF2(X) CF(X)

Given the following IF-THEN rule base and dynamic input with certainty factors, (CF) value: Rule Base RI: if A and B then X (CF = 0.5) R2: if C or D then x (CF=0.7) Dynamic Input A, with certainty 1.0 B, with certainty 0.8 C, with certainty 0.9 D, with certainty 0.7 The rules to calculate the CF values for multiple rules: . CF(C): CF(R1) iii) CF(R1) + CF(R2) - (CF(R1) x CF(R2)), when both and CF(R2) are positive. CF(C)=CF(R1) + CF(R2)+(CF(R1) x CF(R2)), when both CF(R1) and CF(R2) are negative (CF(R1) + CF(R2))/(1-MIN {|CF(R1), CF(R2)| }), when the signs are different Based on rules given above calculate the CF values for X: i) CF A and B, CF1(X) ii) CF C or D, CF2(X) CF(X)

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Topological Sort

Topological sort is a sorting technique that sets up a hierarchy in a process. In this technique, when a directed network has nodes connected by arrows, the root node is placed before the successor node.

Question

D
Given the following IF-THEN rule base and dynamic input with certainty
factors, (CF) value:
Dynamic Input
A, with certainty 1.0.
B, with certainty 0.8
C, with certainty 0.9
D, with certainty 0.7
The rules to calculate the CF values for multiple rules:
ii)
●
iii)
•
Rule Base
RI: if A and B then X (CF = 0.5)
R2: if C or D then x (CF=0.7)
●
CF(C)
CF(R1)
and CF(R2) are positive.
= CF(R1) + CF(R2) - (CF(R1) x CF(R2)), when both
CF(C) = CF(R1) + CF(R2) + (CF(R1) x CF(R2)), when both
CF(R1) and CF(R2) are negative
Based on rules given above calculate the CF values for X:
i)
CF A and B, CF1(X)
(CF(R1) + CF(R2))/(1-MIN {|CF(R1)|, |CF(R2)] }), when the
signs are different
CF C or D, CF2(X)
CF(X)
Given the followings rule and certainty factors:
IF
The sky is dark
AND The wind is getting stronger
THEN It will rain
Certainty Factors:
The sky is dark is CF = 1.0
CF = 0.8

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