Yazar "Aksezer, Sezgin Çağlar" için listeleme
-
Assessing the efficiency of hospitals operating under a unique owner: a DEA application in the presence of missing data
Aksezer, Sezgin Çağlar; Benneyan, James C. (Inderscience Publishers, 2010-05)Originally developed in the late 1970s to assess the efficiency of comparable operating units, Data Envelopment Analysis (DEA) has since been used in a variety of contexts. Although incomplete data sets are often encountered ... -
Assortment optimization with log-linear demand: application at a Turkish grocery store
Hekimoğlu, Mustafa; Sevim, İsmail; Aksezer, Sezgin Çağlar; Durmuş, İpek (Elsevier Ltd, 2019-09)In retail sector, product variety increases faster than shelf spaces of retail stores where goods are presented to consumers. Hence, assortment planning is an important task for sustained financial success of a retailer ... -
An assortment planning problem with an empirical demand model
Durmuş, İpek (Işık Üniversitesi, 2017-01-18)In retail industry, although the product range increases with a great pace year by year, the shelf space that products are displayed on does not expand with the same pace. Accordingly, in recent years, placing products ... -
Cargo company recommendation study based on probabilistic linguistic term set
Çoban, Veysel; Aksezer, Sezgin Çağlar (Bitlis Eren Üniversitesi, 2023-12-28)The global economic structure is the main reason for changes in consumption habits and consumer behavior. Developing information technologies direct producers and consumers to e-commerce. Cargo services are an important ... -
A combined algorithm for placement of rectangular vehicles in a ferry
Paşalı, Büşra (Işık Üniversitesi, 2013-06-14)Management of inland maritime transportation is an important task since it has a costly operation environment, as well as public service responsibility with safety and speed concerns. A typical operation involves multiple ... -
Cost-effective fault diagnosis of a multi-component dynamic system under corrective maintenance
Özgür Ünlüakın, Demet; Türkali, Busenur; Aksezer, Sezgin Çağlar (Elsevier Ltd, 2021-04)Maintenance planning and execution are challenging tasks for every system with complex structure. Interdependent nature of the components that builds up the system may have significant effect on system integrity. While ... -
Çok-bileşenli sistemlerin bakım eniyilemesinde olasılıklı grafiksel modellerin geliştirilmesi ve bunların çözümleri
Özgür Ünlüakın, Demet; Aksezer, Sezgin Çağlar (Tübitak, 2020-07)Endüstrinin gelişmesiyle sistemlerin karmaşıklığı ve buna bağlı olarak da işletmelerin bakım giderleri artmıştır. Bunun sonucunda günümüzde bakım faaliyetlerinin etkin planlanması ve yönetilmesi büyük önem kazanmıştır. ... -
A DBN based reactive maintenance model for a complex system in thermal power plants
Özgür Ünlüakın, Demet; Türkali, Busenur; Karacaörenli, Ayşe; Aksezer, Sezgin Çağlar (Elsevier Sci Ltd, 2019-10)Thermal power plants consist of several complex systems having many interacting hidden components. Any unexpected failure may lead to prolonged downtime and serious lost profits. Therefore, implementing an effective ... -
Dynamic frontier estimation for monitoring team performances: A case on Turkish first division football league
Yılmaz, Melike; Aksezer, Sezgin Çağlar; Atan, Sabri Tankut (Emerald Group Publishing Limited, 2019-06-10)Purpose: This paper aims to investigate how predictions of football league standings and efficiency measures of teams, obtained through frontier estimation technique, evolve compared to actual results. Design/methodology/approach: ... -
Failure analysis and warranty modeling of used cars
Aksezer, Sezgin Çağlar (Pergamon-Elsevier Science Ltd, 2011-09)Reliability is an important aspect of product perception and manufacturers are compelled to take corrective actions on the items failing within the warranty period. Automotive manufacturers are being exposed to significant ... -
Improvement of credit evaluation process in commercial banking
Akoğlu, Çağrı (Işık Üniversitesi, 2018-01-16)Loans constitute the largest sources of revenue in banking industry thus effecting the Turkish economical environment extensively. Credits in the banking sector can be categorized as corporate, medium and large scale, and ... -
A methodology to measure customer expectations by Using Kano's model
Köksel, Ayhan (Işık Üniversitesi, 2014-09-12)Kano’s model has been extensively used to investigate the customer requirements and to determine which features of the product (or service) have the most impact on customer satisfaction (or dissatisfaction). During the ... -
Multiresponse optimisation of powder metals via probabilistic loss functions
Aksezer, Sezgin Çağlar; Benneyan, James C. (Inderscience Enterprises Ltd, 2013)Quadratic loss functions have been used extensively within the context of quality engineering and experimental design for process and product optimisation and robust design. In general, this approach determines optimal ... -
A nonparametric approach for optimal reliability allocation in health services
Aksezer, Sezgin Çağlar (Emerald Group Publishing Limited, 2016-02-01)Reliability evaluation of healthcare services has been a challenging task for both operations managers and system engineers working in the respective field. The purpose of this paper is to develop a data envelopment ... -
On the sensitivity of desirability functions for multiresponse optimization
Aksezer, Sezgin Çağlar (American Institute of Mathematical Sciences, 2008-11)Desirability functions have been one of the most important multiresponse optimization technique since the early eighties. Main reasons for this popularity might be counted as the convenience of the implementation of the ... -
Probability distributions and variances of quadratic loss functions
The use of quadratic loss functions has been advocated in quality engineering and experimental design for process optimization and robust design. We derive theoretical density functions and variances for nominal-the-best, ... -
Reliability evaluation of healthcare services by assessing the technical efficiency
Aksezer, Sezgin Çağlar (Routledge Journals, Taylor & Francis Ltd, 2011)Classical reliability analysis techniques of manufacturing and defence industries are not a perfect fit for the assessment of the reliability of services. This is partly due to the lack of proper and valid reliability ... -
Sustainability via extended warranty contracts: design for a consumer electronics retailer
Aksezer, Sezgin Çağlar (MDPI, 2024-01)Warranty is one of the most important attributes of any product, from both manufacturer and consumer points of view. Although the retailers connect manufacturers to customers by selling goods, traditionally, they have ...