SUPPLIER SELECTION WITH INTERVAL TYPE-2 FUZZY RULE-BASED AHP APPROACH

Yıl 2019, Sayı: 3, 115 - 141, 15.06.2019

Turan Paksoy , Müslüm Öztürk

Öz

The use of type-2 fuzzy logic sets is more
flexible and successful than the classical logic sets in solving problems where
the criteria and alternatives are large and the uncertainty is high. For this
reason, integrating MCDM (multi criteria decision-making) problems with
interval type-2 fuzzy numbers will provide advantages in the decision-making
process. On the other hand, a mixed analysis of the decision-making process,
which requires the use of human sensitivity to reflect the influence level of
the decision maker, can be expressed as the fuzzy rule base. The ranking of
three alternatives under three criteria for the selection of appropriate
suppliers is used in this study on account of expert opinions. Primarily, the
interval fuzzy type-2 Analytical Hierarchy Process method, which has no rule
base and recommended by Kahraman et al. (2014) is used.  Then the alternatives are ranked by the
Interval Type-2 Fuzzy-Rule Based Analytical Hierarchy Process as recommended in
the context of this study. The ranking performance evaluation based on the
Kendall Tau correlation is made for the ranking results that were obtained by
the two methods. It is seen that the ranking performance with Interval Type-2
Fuzzy-Rule Based Analytical Hierarchy Process is higher. Moreover, application,
it is revealed that the applied interval fuzzy type-2 Analytical Hierarchy
Process method can be used in the selection of suppliers for the firms.

Anahtar Kelimeler

Interval Type-2 Fuzzy Logic, Supply Chain Management, Supplier Selection, Interval Type-2 Fuzzy Rule Based AHP

ARALIK TİP-2 BULANIK KURAL TABANLI AHP YAKLAŞIMI İLE TEDARİKÇİ SEÇİMİ

Öz

Kriterlerin ve alternatiflerin çok ve belirsizliğin
yoğun olduğu problemlerin çözümünde klasik mantık kümelerine göre, tip-2
bulanık mantık kümeleri kullanılır. Çünkü daha esnek ve başarılıdırlar. Bu nedenle,
Çok Kriterli Karar Verme problemlerinin aralık tip-2 bulanık sayılar ile
entegre edilmesi karar verme sürecinde avantajlar sağlayacaktır. Öte yandan,
karar vericinin etki derecesini yansıtmak için insan duyarlılığının
kullanılmasını gerektiren karar verme sürecinin karma bir analizi bulanık kural
tabanı ile ifade edilebilir. Bu çalışmada, uzman görüşleri de dikkate alınarak
uygun tedarikçi seçimi için üç kriter altında üç alternatifin sıralanması; öncelikle
Kahraman ve ark. (2014) tarafından önerilen kural tabanı olmayan Aralık Tip-2 Bulanık
Analitik Hiyerarşi Prosesi Yöntemi kullanılmış, daha sonra ise alternatiflerin
sıralanması bu çalışma kapsamında önerilen Aralık Tip-2 Bulanık-Kural Tabanlı
Analitik Hiyerarşi Prosesi ile yapılmıştır. İki yöntem sonucunda elde edilen
sıralama sonuçları üzerinde Kendall Tau Korelasyonuna
dayalı Sıralama Performansı Değerlendirmesi işlemi yapılmış ve elde edilen
sonuçlardan Aralık Tip-2 Bulanık-Kural
Tabanlı Analitik Hiyerarşi Prosesi ile yapılan sıralama performansının daha
yüksek olduğu görülmüştür. Ayrıca yapılan uygulama çalışması sonucunda,
uygulanan Aralık Tip-2 Bulanık Analitik Hiyerarşi Prosesi Yönteminin, firmalar
için tedarikçi seçiminde kullanılabileceği ortaya konulmuştur. 

Anahtar Kelimeler

Aralık Tip 2 Bulanık Mantık, Tedarik Zinciri Yönetimi, Tedarikçi Seçimi, Aralık Tip-2 Bulanık Kural Tabanlı AHP

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