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Studi Kasus Logika Fuzzy
APLIKASI PEMILIHAN SEKOLAH DI KOTA
JEMBER MENGGUNAKAN LOGIKA FUZZY
BERBASIS MOBILE
Perancangan Sistem
2 Kriteria Pemilihan Sekolah
• Variabel fuzzy
– Variabel fuzzy meliputi kriteria uang pangkal, uang
bulanan, dan jarak ke sekolah.
• Variabel non-fuzzy
– Variabel non-fuzzy meliputi prestasi nasional,
status sekolah, jenis sekolah, akreditasi sekolah,
lama belajar, batas tampung kelas, ketersediaan
sekolah, fasilitas sekolah, dan kegiatan
esktrakurikuler.
Himpunan Fuzzy
untuk Variabel Harga
• Himpunan fuzzy untuk variabel harga meliputi MURAH,
SEDANG, dan MAHAL. Himpunan ini digunakan untuk mencari
derajat keanggotaan kriteria uang pangkal dan uang bulanan.
• Fungsi keanggotaan:
Himpunan Fuzzy
untuk Variabel Harga
• µMURAH[harga] =
• µSEDANG[harga] =
• µHARGA[harga] =
• Dengan variabel a, b, dan c merupakan variabel
yang menyimpan nilai batas harga yang
diinputkan oleh user.









b
x
;
0
b
x
a
;
)
a
–
b
(
/
)
– x
b
(
a
x
;
1











c
x
b
;
)
b
–
c
(
/
)
– x
c
(
b
x
a
;
)
a
–
b
(
/
)
a
–
x
(
c
atau x
a
x
;
0









c
x
;
1
c
x
b
;
)
b
–
c
(
/
)
b
–
x
(
b
x
;
0
Contoh :
_id namaSekolah uangPangkal uangSPP panjangJarak
1 SDN Jember Lor 1 90000 24000 0,5
2 SDN Jember Lor 2 70000 29000 2,5
2 SDN Jember Lor 3 320000 11000 8
3 SDN Jember Lor 4 330000 12000 1,2
3 SDN Jember Lor 5 13000 35000 10
Tabel 3.1 Data sekolah.
namaBatas nilaiBatas keterangan
a 170000 Uang Pangkal
b 260000 Uang Pangkal
c 350000 Uang Pangkal
d 17000 Uang Bulanan
e 26000 Uang Bulanan
f 35000 Uang Bulanan
g 1.4 Jarak
h 4.2 Jarak
i 6.5 Jarak
Tabel 3.2 Nilai batas.
_id namaSekolah
µSEDANG
[uangPangkal]
µDEKAT
[panjangJarak]
Firestrength
1 SDN Jember Lor 1 0 1 Min(0,1)=0
2 SDN Jember Lor 2 0 0,6 Min(0,0.6)=0
3 SDN Jember Lor 3 0,3 0 Min(0.3,0)=0
4 SDN Jember Lor 4 0,2 1 Min(0.2,1)=0.2
5 SDN Jember Lor 5 0 0 Min(0,0)=0
Tabel 3.3 Perhitungan firestrength.
derajat keanggotaan untuk
sekolah dengan uang pangkal
SEDANG dan jarak ke sekolah
DEKAT.
Penentuan hasil akhir
• Max method
• Setelah dilakukan perhitungan, dapat dilihat bahwa SDN
Jember Lor 4 memiliki nilai firestrength tertinggi. Jadi hasil
pencarian tersebut adalah SDN Jember Lor 4.
_id namaSekolah
µSEDANG
[uangPangkal]
µDEKAT
[panjangJarak]
Firestrength
1 SDN Jember Lor 1 0 1 Min(0,1)=0
2 SDN Jember Lor 2 0 0,6 Min(0,0.6)=0
3 SDN Jember Lor 3 0,3 0 Min(0.3,0)=0
4 SDN Jember Lor 4 0,2 1 Min(0.2,1)=0.2
5 SDN Jember Lor 5 0 0 Min(0,0)=0
Max = 0.2
Inference Engine
• Salah satu model penalaran yang banyak
dipakai adalah penalaran max-min
8
AND
AB [x] = min(A[x], B[x]) AB [x] = max(A[x], B[x])
OR
Studi Kasus Fuzzy.pptx

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Studi Kasus Fuzzy.pptx

  • 1. Studi Kasus Logika Fuzzy APLIKASI PEMILIHAN SEKOLAH DI KOTA JEMBER MENGGUNAKAN LOGIKA FUZZY BERBASIS MOBILE
  • 3. 2 Kriteria Pemilihan Sekolah • Variabel fuzzy – Variabel fuzzy meliputi kriteria uang pangkal, uang bulanan, dan jarak ke sekolah. • Variabel non-fuzzy – Variabel non-fuzzy meliputi prestasi nasional, status sekolah, jenis sekolah, akreditasi sekolah, lama belajar, batas tampung kelas, ketersediaan sekolah, fasilitas sekolah, dan kegiatan esktrakurikuler.
  • 4. Himpunan Fuzzy untuk Variabel Harga • Himpunan fuzzy untuk variabel harga meliputi MURAH, SEDANG, dan MAHAL. Himpunan ini digunakan untuk mencari derajat keanggotaan kriteria uang pangkal dan uang bulanan. • Fungsi keanggotaan:
  • 5. Himpunan Fuzzy untuk Variabel Harga • µMURAH[harga] = • µSEDANG[harga] = • µHARGA[harga] = • Dengan variabel a, b, dan c merupakan variabel yang menyimpan nilai batas harga yang diinputkan oleh user.          b x ; 0 b x a ; ) a – b ( / ) – x b ( a x ; 1            c x b ; ) b – c ( / ) – x c ( b x a ; ) a – b ( / ) a – x ( c atau x a x ; 0          c x ; 1 c x b ; ) b – c ( / ) b – x ( b x ; 0
  • 6. Contoh : _id namaSekolah uangPangkal uangSPP panjangJarak 1 SDN Jember Lor 1 90000 24000 0,5 2 SDN Jember Lor 2 70000 29000 2,5 2 SDN Jember Lor 3 320000 11000 8 3 SDN Jember Lor 4 330000 12000 1,2 3 SDN Jember Lor 5 13000 35000 10 Tabel 3.1 Data sekolah. namaBatas nilaiBatas keterangan a 170000 Uang Pangkal b 260000 Uang Pangkal c 350000 Uang Pangkal d 17000 Uang Bulanan e 26000 Uang Bulanan f 35000 Uang Bulanan g 1.4 Jarak h 4.2 Jarak i 6.5 Jarak Tabel 3.2 Nilai batas. _id namaSekolah µSEDANG [uangPangkal] µDEKAT [panjangJarak] Firestrength 1 SDN Jember Lor 1 0 1 Min(0,1)=0 2 SDN Jember Lor 2 0 0,6 Min(0,0.6)=0 3 SDN Jember Lor 3 0,3 0 Min(0.3,0)=0 4 SDN Jember Lor 4 0,2 1 Min(0.2,1)=0.2 5 SDN Jember Lor 5 0 0 Min(0,0)=0 Tabel 3.3 Perhitungan firestrength. derajat keanggotaan untuk sekolah dengan uang pangkal SEDANG dan jarak ke sekolah DEKAT.
  • 7. Penentuan hasil akhir • Max method • Setelah dilakukan perhitungan, dapat dilihat bahwa SDN Jember Lor 4 memiliki nilai firestrength tertinggi. Jadi hasil pencarian tersebut adalah SDN Jember Lor 4. _id namaSekolah µSEDANG [uangPangkal] µDEKAT [panjangJarak] Firestrength 1 SDN Jember Lor 1 0 1 Min(0,1)=0 2 SDN Jember Lor 2 0 0,6 Min(0,0.6)=0 3 SDN Jember Lor 3 0,3 0 Min(0.3,0)=0 4 SDN Jember Lor 4 0,2 1 Min(0.2,1)=0.2 5 SDN Jember Lor 5 0 0 Min(0,0)=0 Max = 0.2
  • 8. Inference Engine • Salah satu model penalaran yang banyak dipakai adalah penalaran max-min 8 AND AB [x] = min(A[x], B[x]) AB [x] = max(A[x], B[x]) OR