Fuzzy Rank Ordering Weight Based Fuzzy MARCOS Method for Solving Internet Service Provider Selection Problem

Öz

Internet service is offered to individuals and institutions by the Internet Service Provider (ISP) for a certain fee. There are many ISPs in the world and in our country, and there is an intense competition between ISPs due to the rapid developments in the electronic communication sector. In this case, users are faced with ISP selection problem. Considering all qualitative and quantitative criteria that meet the needs of the user, the choice of ISP that will provide the best service can be designed as a Multi Criteria Decision Making (MCDM) problem with uncertainty. In this study, fuzzy set theory is used to model uncertainty. In the study, the ISP selection process of home users who want to get fiber technology service is made in two stages. In the first stage, the criteria that affect the users’ ISP selection are determined and the weights of these criteria are calculated using Fuzzy Rank Sum (FRS), Fuzzy Rank Reciprocal (FRR) and Fuzzy Rank Order Centroid (FROC). In the second stage, ISP alternatives that provide fiber technology services for the same users are listed by fuzzy MARCOS method, taking into account the criteria determined in the first stage. In this way, the fuzzy MARCOS method is evaluated together with different fuzzy rank ordering weighting methods and a comparative analysis is made and the results are interpreted.

Anahtar Kelimeler

• MCDM
• fuzzy rank ordering weighting methods
• fuzzy MARCOS
• Internet Sevice Provider (ISP) selection

İnternet Servis Sağlayıcı Seçim Probleminin Çözümünde Bulanık Sıralama Ağırlık Tabanlı Bulanık MARCOS Yöntemi

Öz

İnternet hizmeti, belli bir ücret karşılığında bireylere ve kurumlara İnternet Servis Sağlayıcı (İSS) tarafından sunulmaktadır. Dünyada ve ülkemizde çok sayıda İSS olup, elektronik haberleşme sektöründeki hızlı gelişmeler nedeniyle İSS’ler arasında yoğun bir rekabet yaşanmaktadır. Bu durumda kullanıcılar, İSS seçim problemi ile karşı karşıya kalmaktadır. Kullanıcının amacı doğrultusunda ihtiyacını karşılayacak tüm nitel ve nicel kriterler düşünüldüğünde en iyi hizmeti sunacak İSS seçimi, belirsizlik içeren Çok Kriterli Karar Verme (ÇKKV) problemi olarak tasarlanabilir. Bu çalışmada, belirsizliği modelleyebilmek için bulanık küme teorisi kullanılmıştır. Çalışmada, fiber teknoloji hizmeti almak isteyen ev kullanıcılarının İSS seçim süreci, iki aşamada gerçekleştirilmiştir. İlk aşamada, kullanıcıların İSS seçimini etkileyen kriterler belirlenmiş ve bu kriterlerin ağırlıkları, Bulanık Sıra Toplam (BST), Bulanık Sıra Karşılıklı (BSK) ve Bulanık Sıra Ağırlık Merkezi (BSAM) ile hesaplanmıştır. İkinci aşamada ise aynı kullanıcılar için fiber teknoloji hizmeti veren İSS alternatifleri, ilk aşamada belirlenen kriterler dikkate alınarak bulanık MARCOS yöntemi ile sıralanmıştır. Bu şekilde bulanık MARCOS yöntemi, farklı bulanık sıralama ağırlıklandırma yöntemleri ile birlikte değerlendirilerek karşılaştırmalı bir analiz yapılmış ve sonuçlar yorumlanmıştır.

Anahtar Kelimeler

• ÇKKV
• bulanık sıralama ağırlıklandırma yöntemleri
• bulanık MARCOS
• İnternet Servis Sağlayıcı (İSS) seçimi

Kaynakça

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