Emre Koçak

Gazi University · Department of Statistics

Over the years, increasing energy demands with the growth of the population and the development of technology have caused more fossil fuel consumption. Besides, environmental pollution and climate change, which are vital importance for humanity, are encountered. In order to avoid these dangerous situations, people have started to turn to clean and...

Feature selection, a common and crucial problem in current scientific research, is a crucial data preprocessing technique and a combinatorial optimization task. Feature selection aims to select a subset of informative and appropriate features from the original feature dataset. Therefore, improving performance on the classification task requires pro...

Nearly all nations, including Turkey, were impacted by the 2019 new coronavirus (COVID-19) infections that Wuhan, China reported as the disease's first official case. Turkey is one of the most impacted nations in the globe because to the high number of infected patients. To comprehend the pattern of the virus's propagation and its impacts, it is cr...

The transport sector is one of the most important sectors with the potential to reduce greenhouse gas emissions, according to Turkiye's 2053 net zero target. Electrification is the most important part of this goal, is expected to become basic strategy for transport. Thus, this paper aims to analyze how the transport sector could take part in terms...

Ulaştırma sektöründe emisyonların azaltılması, Türkiye’nin 2053 net sıfır emisyon hedefinin en önemli adımlarından biri olacaktır. Bu hedefin en önemli parçası olacak elektrifikasyonun, özellikle karayolu ulaşım modlarında emisyonların azaltılmasında temel stratejiyi oluşturması beklenmektedir. Diğer birçok sektörden farklı olarak ulaştırma sektörü...

Objective: This study aims to investigate the effects of glazing, polishing and polishing with a polishing paste of newly developed highly translucent materials on the flexural strength of these materials and aims to illuminate where there is not much study yet on the finishing procedures to be done. Methods: Three different high translucency Y-PSZ...

Weibull distribution is widely used in various fields such as failure rates and system reliability. Because of its wide application, it is very important to determine the best method of parameter estimation for the Weibull distribution. Although the most known parameter estimation methods are least square (LS), weighted least square (WLS) and maxim...

Weibull distribution is widely used in various area such as life tables, failure rates, and definition of wind speed distribution. Therefore, parameter estimation for the Weibull distribution is an important problem in many real data applications. The least square (LS), the weighted least square (WLS) and the maximum likelihood (ML) are the most po...

According to the efficiency scores obtained by Data Envelopment Analysis (DEA), the main problem for inefficient decision-making units (DMU) is the factors that cause inefficiency. To deal with this problem, various studies have been handled, such as decomposing the total efficiency score, and two-stage DEA which can divide the whole process into t...