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Fuzzy Approach. 2 RBS CS 331/531 Dr M M Awais Crisp Vs Fuzzy young 25 age Membership value 1 0 Crisp boundary old.

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Presentation on theme: "Fuzzy Approach. 2 RBS CS 331/531 Dr M M Awais Crisp Vs Fuzzy young 25 age Membership value 1 0 Crisp boundary old."— Presentation transcript:

1 Fuzzy Approach

2 2 RBS CS 331/531 Dr M M Awais Crisp Vs Fuzzy young 25 age Membership value 1 0 Crisp boundary old

3 3 RBS CS 331/531 Dr M M Awais Crisp Vs Fuzzy 25 age Membership value 1 0 Fuzzy boundary old 30 young

4 4 RBS CS 331/531 Dr M M Awais Crisp Vs Fuzzy 25 age Membership value 1 0 old 30 young MV of young is 1 MV of old is 0 Fuzzy Young

5 5 RBS CS 331/531 Dr M M Awais Crisp Vs Fuzzy 25 age Membership value 1 0 old 30 young Some what young MV varies from 0.5 to 1 0.5

6 6 RBS CS 331/531 Dr M M Awais Crisp Vs Fuzzy 25 age Membership value 1 0 Nearly old MV varies from 0.5 to 0 old 30 young Some what young 0.5

7 7 RBS CS 331/531 Dr M M Awais Fuzzy Rule Base System Fuzzify each antecedent Find the fuzzy value for the conclusion Defuzzify this value

8 8 RBS CS 331/531 Dr M M Awais temp Membership value IF TEMP. 20C and HUMDITY 20% THEN THERMOSTAT HIGH Fuzzify the conditions

9 9 RBS CS 331/531 Dr M M Awais temp Membership value IF TEMP. 20C and HUMDITY 20% THEN THERMOSTAT HIGH Hum Membership value Fuzzify the conditions

10 10 RBS CS 331/531 Dr M M Awais temp Membership value IF TEMP. 20C and HUMDITY 20% THEN THERMOSTAT HIGH Hum Membership value THERMO Membership value Fuzzify the conclusion

11 11 RBS CS 331/531 Dr M M Awais temp Membership value IF TEMP. 20C and HUMDITY 20% THEN THERMOSTAT HIGH Hum Membership value THERMO Membership value Find the membership for Temp 20

12 12 RBS CS 331/531 Dr M M Awais temp Membership value IF TEMP. 20C and HUMDITY 20% THEN THERMOSTAT HIGH Hum Membership value THERMO Membership value Find the membership for humidity 20%

13 13 RBS CS 331/531 Dr M M Awais temp Membership value IF TEMP. 20C and HUMDITY 20% THEN THERMOSTAT HIGH Hum Membership value THERMO Membership value Transfer the min value as and operator exists between conditions Transfer the values to find the membership value of Thermo

14 14 RBS CS 331/531 Dr M M Awais temp Membership value IF TEMP. 20C and HUMDITY 20% THEN THERMOSTAT HIGH Hum Membership value THERMO Membership value Transfer the min value as and operator exists between conditions Min(0.3,0.6) Transfer the values to find the membership value of Thermo

15 15 RBS CS 331/531 Dr M M Awais temp Membership value IF TEMP. 20C and HUMDITY 20% THEN THERMOSTAT HIGH Hum Membership value THERMO Membership value Transfer the values to find the membership value of Thermo

16 16 RBS CS 331/531 Dr M M Awais temp Membership value IF TEMP. 20C and HUMDITY 20% THEN THERMOSTAT HIGH Hum Membership value THERMO Membership value Defuzzify the membership value of Thermo

17 17 RBS CS 331/531 Dr M M Awais temp Membership value IF TEMP. 20C and HUMDITY 20% THEN THERMOSTAT HIGH Hum Membership value THERMO Membership value The new thermo setting is 25 after this rule fires


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