Browsing by Author "Özçelik, M. Hamdi"
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Detecting credit card fraud by genetic algorithm and scatter search
Duman, Ekrem; Özçelik, M. Hamdi (Elsevier, 2011-09-15)In this study we develop a method which improves a credit card fraud detection solution currently being used in a bank. With this solution each transaction is scored and based on these scores the transactions are classified ... -
Improving a credit card fraud detection system using genetic algorithm
Özçelik, M. Hamdi; Işık, Mine; Duman, Ekrem; Çevik, Tuğba (IEEE, 2010-06)In this study we undertook the credit card fraud detection problem of a bank and tried to improve the performance of an existing solution. In doing so, we did not undertake the typical objective of maximizing the number ... -
Operations sequencing in a cable assembly shop
Ceranoğlu, Ahmet Nuri; Duman, Ekrem; Özçelik, M. Hamdi (İstanbul Teknik Üniversitesi, 2005-06)The need for a better, compact and neat solution in the cable systems used by the automotive industry resulted in emerge of companies specialized in producing such cable systems. The present study is an extension of the ... -
A TSP (1,2) application arising in cable assembly shops
Duman, Ekrem; Özçelik, M. Hamdi; Ceranoğlu, Ahmet Nuri (Palgrave Macmillan, 2005-06)One of the main operations in producing cable systems in the automotive industry is that of cutting/stripping/crimping. The most time-consuming activity in this operation is changing the heads whenever a different connector ...
