Esra Çakir

Esra Çakir
Galatasaray Üniversitesi · Department of Industrial Engineering

PhD Candidate

About

43
Publications
930
Reads
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37
Citations
Additional affiliations
April 2019 - present
Galatasaray Üniversitesi
Position
  • Research Assistant

Publications

Publications (43)
Conference Paper
The Covid-19 pandemic has caused many revolutionary changes in business life. Thanks to the remote working opportunity in some sectors and limited areas, some leading companies were able to continue their activities and aimed to prevent the spread of the epidemic in the business environment. Although remote working is very advantageous due to econo...
Article
Covid-19 virüsü nedeniyle Dünya Sağlık Örgütü tarafından 2020 yılında pandemi ilan edildi. Çeşitli ülkelerde, Covid-19 virüsüne karşı insan vücuduna bağışıklık kazandıran çok sayıda aşının üretimi çalışmaları halen devam etmektedir. Bu virüsle baş etmek için toplu aşılama çalışmaları yapılmaktadır. Toplu aşılama, aşıları ulaştırma ve süreç yönetimi...
Chapter
Health tourism is the set of activities that patients perform to be treated and to feel good. Each health activity should have its own conditions, and gathering these activities under one building requires expert views. Therefore, choosing the site for health tourism in a sustainable environment is a complex problem. It is also becoming more diffic...
Chapter
The fourth industrial revolution is a vision that deeply affects the aviation industry in terms of cloud computing, artificial intelligence, digital transformation, and the internet of things. Although aviation 4.0 is at the beginning of its development, great competition begins to design suitable systems. Airline companies need well-designed softw...
Chapter
Collaborating businesses are expected to be mutually beneficial and act as a single entity. It is possible to achieve the goals thanks to the businesses that come together in an industrial symbiosis network. Two (or more) businesses benefit in an industrial symbiosis relationship. The selection of enterprises in which industrial symbiosis can be es...
Conference Paper
Since the beginning of the COVID-19 pandemic, the use of protective medical products has tremendously increased. The wastes generated by used products pose a threat to public health. Selection of alternative landfill sites to be determined for medical waste is a challenging task as there are several criteria to consider. Fuzzy multi-criteria decisi...
Article
Health tourism is one of today's rapidly growing economic areas. Promotional activities must be carried out in order to increase the income to be obtained from health tourism. It is necessary to select the best center for these studies to be prepared effectively. Multicriteria decision-making approaches can be considered in use of the selection of...
Chapter
The use of electric vehicles has been increasing rapidly in recent years. Hence, determining the location of charging stations is a strategic decision. Managements may consider relocating charging stations as demand may change over time. In order to reflect the uncertainty in demand, it is appropriate to use fuzzy expressions. The demands of custom...
Chapter
The strategy of the milk-run vehicle routing problem (VRP) is to design networks for material flow among the points in the supply chain while minimizing the total cost and the number of vehicles used. In addition to the theoretical VRP model, products may need to be delivered at specific time intervals and these restrictions affect the cost and the...
Conference Paper
Since 2020, the world is facing a pandemic. In order to cope with the epidemic, the acceleration of the diagnosis process is important for treatment. However, in order to minimize contact with other patients, test centers should also be kept separate from public health centers. In this study, a multi facility location problem is addressed for mobil...
Article
Determining the shortest path and calculating the shortest travel time of a complex networks are important for transportation problems. Numerous approaches has been developed to search shortest path on graphs, and one of the well-known is the Dijkstra’s label correcting algorithm. Dijkstra’s approach is capable of determining shortest path of direc...
Conference Paper
2020 yılında COVID-19 pandemisinin ilan edilmesiyle birlikte virüsün yayılımını önlemek için tüm dünyada çeşitli önlemler alınmıştır. Ülkelerin pandemiye hazırlıksız yakalanması nedeniyle alınan önlemler ve hastalığın tespit süreci kolay olmamıştır. Virüsle başa çıkabilmenin ilk adımı olarak hastaları tespit etmek ve izolasyonu sağlamak gereklidir....
Conference Paper
Dünya ticaretinin çok büyük bir kısmı deniz yolu ile taşınmaktadır. Gerek insan taşımacılığı gerekse ticari hammadde, yarı mamul ve mamullerin taşınmasında deniz taşıtları yoğun şekilde kullanılmaktadır. Deniz taşımacılığı, yüksek miktarda yük taşımaya imkan sunması nedeniyle uzun mesafeli yolculuklarda düşük maliyet avantajı sağlar. Limanlar, deni...
Article
A pandemic was declared in 2020 due to COVID-19. The most important way to deal with the virus is mass vaccination which is a complex task in terms of fast transportation and process management. Hospitals and other health centers can be used for vaccination. In addition, in order to separate other diseases from COVID-19 and provide rapid access to...
Article
Milk-run is a delivery method allowing to move small quantities of a large number of different items with predictable lead times from various suppliers to a customer. The main goal is to minimize the transportation cost by minimizing the travel distance and by maximizing vehicle capacities. The effects of uncertainties in arrival times of vehicles...
Conference Paper
Determining the shortest travel time on transportation is affected by many logistics parameters such as cost, quality, speed and satisfaction. This study proposes a new hybrid time-dependent Dijkstra’s and minimum vertex degree algorithm on a spherical bipolar fuzzy weighted graph to find shortest travel time of Hamiltonian cycles on transportation...
Conference Paper
Dealing with uncertainty and imprecision is important in many application areas of artificial intelligence such as expert systems, fuzzy control, robotics, computer based systems, machine learning or data recovery. Bousi~Prolog is a Prolog that enables working with both fuzzy linguistic and linguistic tools to direct Prolog systems used in logical...
Article
https://www.3ciencias.com/wp-content/uploads/2021/05/3C-Tecnologi%CC%81a_Special_Issue_37-2.pdf
Article
https://www.3ciencias.com/wp-content/uploads/2021/05/3C-Tecnologi%CC%81a_Special_Issue_37-2.pdf
Conference Paper
Vaccination procedures, which are the most effective way to deal with the COVID-19 pandemic, have started worldwide. Since hospitals and health centers are used as vaccination centers, collecting people in one place can lead to the spread of other diseases. Therefore, the use of temporary vaccination clinics is encouraged for mass vaccination. In t...
Article
https://dergipark.org.tr/tr/pub/jesd/issue/61057/764492
Article
This paper proposes a new approach by applying Kruskal’s algorithm on undirected road graph under intuitionistic fuzzy environment. The new hybrid algorithm consists of two phases. The first one is to determine fuzzy weights of undirected graph by intuitionistic fuzzy multi-criteria decision-making method with Hamacher aggregation operator. The edg...
Chapter
A* (A-star) is a computer algorithm that is widely used in pathfinding and graph traversal to effectively compute optimal solutions. The algorithm uses the best first search and finds the lowest cost path from a given start node to a target node. It follows a path of the lowest known heuristic cost, keeping a sorted priority queue of alternate path...
Article
Due to the increase in energy demand, many countries suffer from energy poverty because of insufficient and expensive energy supply. Plans to use alternative power like nuclear power for electricity generation are being revived among developing countries. Decisions for installation of power plants need to be based on careful assessment of future en...
Chapter
Finding the shortest path of complex networks and transportation problems is an important task. Many algorithms have been developed to solve this problem and one of the most well-known is the Dijkstra algorithm, also called “label algorithm”. The graph consists of directed or undirected arc with positive weights as well and Dijkstra’s algorithm can...
Chapter
In a global competitive environment, companies’ ability to develop products and respond to customer demands is crucial to their success. Quality Function Deployment is an approach that companies use to meet customer needs and expectations in the product design process. It provides competitive advantage to the firm by shortening the development peri...
Conference Paper
Recycling of wastes is a crucial subject for a sustainable environment. One of the main problem in this area is the appropriate location of the collection centers and recycling facilities. These facilities can be paired according to the criteria such as: distance, cost, type of waste. In this paper, fuzzy linguistics Prolog is used to find importan...
Conference Paper
Due to their increases in energy demand, many countries suffer from energy poverty because of insufficient and expensive energy supply. Plans to use alternative power like nuclear power for electricity generation are being revived among developing countries. Decisions for installation of power plants need to be based on careful assessment of future...

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