Browsing by Author "Şahin, Ahmet"
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A data-driven matching algorithm for ride pooling problem
Şahin, Ahmet; Sevim, İ.; Albey, Erinç; Güler, M. G. (Elsevier, 2022-04)This paper proposes a data-driven matching algorithm for the problem of ride pooling, which is a transportation mode enabling people to share a vehicle for a trip. The problem is considered as a variant of matching problem, ... -
Ensemble Learning based on Regressor Chains: A Case on Quality Prediction
Demirel, Kenan Cem; Şahin, Ahmet; Albey, Erinç (SciTePress, 2019)In this study we construct a prediction model, which utilizes the production process parameters acquired from a textile machine and predicts the quality characteristics of the final yarn. Several machine learning algorithms ... -
International roaming traffic optimization with call quality
Şahin, Ahmet; Demirel, Kenan Cem; Albey, Erinç; Gürsun, Gonca (SciTePress, 2019)In this study we focus on a Steering International Roaming Traffic (SIRT) problem with single service that concerns a telecommunication’s operators’ agreements with other operators in order to enable subscribers access ... -
A Markovian approach for time series prediction for quality control
Şahin, Ahmet; Sayımlar, Ayşe Dilara; Teksan, Zehra Melis; Albey, Erinç (Elsevier, 2019)In this work we aim to predict quality levels of incoming batches of a selected product type to a white goods manufacturer from a third party supplier. We apply a Markov Model that captures the quality level of the incoming ... -
A mathematical model for customer lifetime value based offer management
Şahin, Ahmet; Can, Zehra; Albey, Erinç (Springer, 2018)Customers with prepaid lines possess higher attrition risk compared to postpaid customers, since prepaid customers do not sign long-term obligatory contracts and may churn anytime. For this reason, mobile operators have ... -
Optimizing steering of roaming traffic with a-number billing under a rolling horizon policy
Şahin, Ahmet; Demirel, Kenan Cem; Ceyhan, Ege; Albey, Erinç (Springer, 2020)In this study, we focus on single service steering international roaming traffic (SIRT) problem by considering telecommunication operators’ agreements and “a-number billing” while keeping service quality above a certain ... -
A web-based decision support system for quality prediction in manufacturing using ensemble of regressor chains
Demirel, Kenan Cem; Şahin, Ahmet; Albey, Erinç (Springer, 2020)In this study we construct a decision support system (DSS), which utilizes the production process parameters to predict the quality characteristics of final products in two different manufacturing plants. Using the idea ...
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