Logika Fuzzy dan aplikasinya

Presentasi berjudul: "Logika Fuzzy dan aplikasinya"— Transcript presentasi:

1 Logika Fuzzy dan aplikasinya
Dewi Liliana, M.KOM IT PNJ

2 Logika Fuzzy Logika Fuzzy, sering juga disebut himpunan fuzzy
Himpunan fuzzy mampu merepresentasikan estimasi manusia yang bersifat ambigu.

3 Fuzzy Logic History In 1965,Fuzzy Set Theory was introduced by Professor Lotfi A. Zadeh (University of California at Berkeley). In 1974,Professor Ebrahim Mamdani (London University) applied the Fuzzy IF-THEN rule reasoning for automatic operation of a steam engine and that was the beginning of fuzzy control application. In 1980,the first industrial application report of a fuzzy controlled automatic operation system in a cement factory in Denmark was published. By 1987,many applications of fuzzy logic control were published. In 1990,the application of fuzzy logic to home electronics in Japan made a "fuzzy boom." The fuzzy boom in Japan had a strong impact on Korea and the United States. Now much research is carried out in worldwide.

4 Terminologi Logika Fuzzy
Linguistic uncertainty. Logika Fuzzy berkaitan dengan bahasa ketidakpastian (linguistic uncertainty). Linguistic Variable dapat dinyatakan secara kuantitatif dengan fungsi keanggotaan/membership function. Fuzzification. Berdasarkan fungsi keanggotaan, nilai fuzzy untuk variabel masukan dikalkulasi/dihitung derajatkeanggotaannya. Rules dibangun dengan linguistic variable untuk menggambarkan fungsi dari sistem. Biasanya berbentuk Antecedent/Consequent IF x [AND/OR] y THEN z.

5 Model Linguistic Uncertainty

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15 Standard Operations of Fuzzy Set
Complement set A , union , and intersection represent the standard operations of fuzzy theory and are arranged as:

16 Fungsi Keanggotaan (Membership Function)
Kurva Segitiga Kurva Trapesium Kurva Gauss Kurva Sigmoid

17 Kurva Segitiga

18 Kurva Segitiga

19 Contoh menghitung membership function
A = (-3, 2, 4) ; B = (-1, 0, 6)

20 Kurva Trapesium

21 Kurva Trapesium

22 Kurva Gauss/Lonceng

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