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Sütçü, Muhammed
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Sütçü, Muhammed
Sutcu, Muhammed
Sutcu, Muhammed
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01. Abdullah Gül University
Mühendislik Fakültesi
Endüstri Mühendisliği
Mühendislik Fakültesi
Endüstri Mühendisliği
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Sustainable Development Goals
1
NO POVERTY
1
Research Products
3
GOOD HEALTH AND WELL-BEING
1
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7
AFFORDABLE AND CLEAN ENERGY
6
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8
DECENT WORK AND ECONOMIC GROWTH
2
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9
INDUSTRY, INNOVATION AND INFRASTRUCTURE
1
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11
SUSTAINABLE CITIES AND COMMUNITIES
2
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13
CLIMATE ACTION
4
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14
LIFE BELOW WATER
1
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17
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4
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18
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10
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2298/1913
Supervised MSc Theses
6
Supervised PhD Theses
2
WoS Citation Count
25
Scopus Citation Count
37
WoS h-index
3
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4
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0
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WoS Citations per Publication
1.39
Scopus Citations per Publication
2.06
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12
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8
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| Journal | Count |
|---|---|
| Bitlis Eren Üniversitesi Fen Bilimleri Dergisi | 1 |
| Computers & Industrial Engineering | 1 |
| Environment Systems and Decisions | 1 |
| Expert Systems With Applications | 1 |
| Heliyon | 1 |
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Now showing 1 - 10 of 18
Article Movie Recommendation Systems Based on Collaborative Filtering: A Case Study on Netflix(Erciyes Üniversitesi, 2021) Sütçü, Muhammed; Erdem, Oğuzkan; Kaya, EcemUser ratings on items like movies, songs, and shopping products are used_x000D_ by Recommendation Systems (RS) to predict user preferences for items that have_x000D_ not been rated. RS has been utilized to give suggestions to users in various domains_x000D_ and one of the applications of RS is movie recommendation. In this domain, three_x000D_ general algorithms are applied; Collaborative Filtering that provides prediction_x000D_ based on similarities among users, Content-Based Filtering that is fed from the_x000D_ relation between item-user pairs and Hybrid Filtering one which combines these_x000D_ two algorithms. In this paper, we discuss which methods are more efficient in movie_x000D_ recommendation in the framework of Collaborative Filtering. In our analysis, we use_x000D_ Netflix Prize dataset and compare well-known Collaborative Filtering methods_x000D_ which are Singular Value Decomposition, Singular Value Decomposition++, KNearest Neighbour and Co-Clustering. The error of each method is calculated by_x000D_ using Root Mean Square Error (RMSE). Finally, we conclude that K-Nearest_x000D_ Neighbour method is more successful in our dataset.Article Citation - WoS: 4Citation - Scopus: 6A Variant SDDP Approach for Periodic-Review Approximately Optimal Pricing of a Slow-Moving a Item in a Duopoly Under Price Protection With End-Of Return and Retail Fixed Markdown Policy(Pergamon-Elsevier Science Ltd, 2023) Yildiz, Baris; Sutcu, MuhammedIn this paper, we examine a selling environment where a manufacturer-controlled retailer and an independent retailer sell a slow-moving A item. The manufacturer offers the independent retailer a price protection contract stipulating that the manufacturer reimburses the independent retailer in case of a reduction in the wholesale price. The price set by the independent retailer is assumed to be determined by Retail Fixed Markdown (RFM) policy. The manufacturer also offers the independent retailer a special discount rate for the replenishment orders and the retailers are assumed to follow (R, S) inventory replenishment policy. The manufacturer adopts a periodic-review pricing strategy and the mean demand observed by each retailer in a given period depends on the prices. We also take the customers choosing no-purchase option into account. We employ multinomial logit (MNL) models to forecast customers' preferences based on retail prices. The retailers' market shares are esti-mated by customized choice probability functions. We propose stochastic programming models to determine the manufacturer's pricing strategy. Then, we propose a variant Stochastic Dual Dynamic Programming (SDDP) algorithm to determine the manufacturer's approximately optimal pricing strategy by getting around three curses of dimensionality. Then, we move on to the observations on the impact of four critically important contractual parameters on the price, the market shares and the expected total net profits and finally discuss some possible approaches for the selection of the best compromise values of those contractual parameters.Article Citation - WoS: 10Citation - Scopus: 12Optimizing Electric Vehicle Charging Station Location on Highways: A Decision Model for Meeting Intercity Travel Demand(MDPI, 2023) Gulbahar, Ibrahim Tumay; Sutcu, Muhammed; Almomany, Abedalmuhdi; Ibrahim, Babul Salam K. S. M. KaderElectric vehicles have emerged as one of the top environmentally friendly alternatives to traditional internal combustion engine vehicles. The development of a comprehensive charging infrastructure, particularly determining the optimal locations for charging stations, is essential for the widespread adoption of electric vehicles. Most research on this subject focuses on popular areas such as city centers, shopping centers, and airports. With numerous charging stations available, these locations typically satisfy daily charging needs in routine life. However, the availability of charging stations for intercity travel, particularly on highways, remains insufficient. In this study, a decision model has been proposed to determine the optimal placement of electric vehicle charging stations along highways. To ensure a practical approach to the location of charging stations, the projected number of electric vehicles in Turkiye over the next few years is estimated by using a novel approach and the outcomes are used as crucial input in the facility location model. An optimization technique is employed to identify the ideal locations for charging stations on national highways to meet customer demand. The proposed model selects the most appropriate locations for charging stations and the required number of chargers to be installed, ensuring that electric vehicle drivers on highways do not encounter charging problems.Article Citation - Scopus: 3Parameter Uncertainties in Evaluating Climate Policies With Dynamic Integrated Climate-Economy Model(Springer, 2024) Sutcu, MuhammedClimate change is a complex issue with significant scientific and socio-economic uncertainties, making it difficult to assess the effectiveness of climate policies. Dynamic Integrated Climate-Economy Models (DICE models) have been widely used to evaluate the impact of different climate policies. However, since climate change, long-term economic development, and their interactions are highly uncertain, an accurate assessment of investments in climate change mitigation requires appropriate consideration of climatic and economic uncertainties. Moreover, the results of these models are highly dependent on input parameters and assumptions, which can have significant uncertainties. To accurately assess the impact of climate policies, it is crucial to incorporate uncertainties into these models. In this paper, we explore the impact of parameter uncertainties on the evaluation of climate policies using DICE models. Our goal is to understand whether uncertainty significantly affects decision-making, particularly in global warming policy decisions. By integrating climatic and economic uncertainties into the DICE model, we seek to identify the cumulative impact of uncertainty on climate change. Overall, this paper aims to contribute to a better understanding of the challenges associated with evaluating climate policies using DICE models, and to inform the development of more effective policy measures to address the urgent challenge of climate change. © 2024 Elsevier B.V., All rights reserved.Article Citation - Scopus: 1Electricity Load Forecasting Using Deep Learning and Novel Hybrid Models(Sakarya University, 2022) Sutcu, Muhammed; Şahi̇n, Kübra Nur; Koloğlu, Yunus; Çelikel, Mevlüt Emirhan; Gulbahar, Ibrahim TümayLoad forecasting is an essential task which is executed by electricity retail companies. By predicting the demand accurately, companies can prevent waste of resources and blackouts. Load forecasting directly affect the financial of the company and the stability of the Turkish Electricity Market. This study is conducted with an electricity retail company, and main focus of the study is to build accurate models for load. Datasets with novel features are preprocessed, then deep learning models are built in order to achieve high accuracy for these problems. Furthermore, a novel method for solving regression problems with classification approach (discretization) is developed for this study. In order to obtain more robust model, an ensemble model is developed and the success of individual models are evaluated in comparison to each other. © 2025 Elsevier B.V., All rights reserved.Doctoral Thesis Fiyat Koruması, Dönem Ortası ve Dönem Sonu Geri Ödemesi Altında Ücretlendirme Stratejileri(Abdullah Gül Üniversitesi, Fen Bilimleri Enstitüsü, 2022) Yıldız, Barış; Sütçü, MuhammedIn this thesis, we examine a selling environment where a manufacturer-controlled retailer and an independent retailer sell a slow-moving A item. The manufacturer offers the independent retailer price protection against reductions in the wholesale price. The price set by the independent retailer is assumed to be determined by Retail Fixed Markdown (RFM) policy. The manufacturer adopts a periodic-review pricing strategy and each retailer observes price-dependent stochastic demand. We employ Multinomial Logit (MNL) models to forecast customers' preferences based on retail prices. We construct stochastic programming models to determine the manufacturer's pricing strategy in the presence of four distinct price commitment contracts which differ in the supplementary privileges combined with price protection. We also propose a variant Stochastic Dual Dynamic Programming (SDDP) algorithm to determine the manufacturer's approximately optimal pricing strategy by getting around three curses of dimensionality. We observe the impact of critically important contractual parameters on the price, the market shares and the expected true profits. We also evaluate the performance of the proposed algorithm and compare the price commitment contracts in terms of the contractual parameters for which it is crucial to choose a compromise value to ensure high enough profitability for both retailers.Article Optimal Location Determination of Electric Vehicle Charging Stations: A Case Study on Turkey's Most Preferred Highway(2022) Gülbahar, İbrahim Tümay; Sütçü, MuhammedToday, electric vehicles are seen as one of the most suitable and environmentally friendly alternatives to internal combustion engine vehicles. An important issue related to the dissemination of electric vehicles is the location of the vehicle charging network and specifically the optimum location selection of the charging stations. Generally, most of the studies focus on popular destinations such as city centers, shopping areas, bus stations, and airports. Although these places are often used in normal life, they can usually provide an adequate solution for daily charging needs due to the number of alternative charging stations. However, finding adequate charging stations is not possible in intercity travels especially in highways. In this paper, we proposed a decision model to determine the location of electric car charging stations in highways. We create an optimization model to decide the optimum locations for the charging stations that can meet the customer demands on the Istanbul-Ankara highway. The proposed model determines optimum charging stations that enable passengers traveling with their electric vehicles to travel in Istanbul-Ankara highway in the shortest time.Master Thesis Türkiye'de Elektrikli Araç Sarj İstasyonu Lokasyonu Belirleme(Abdullah Gül Üniversitesi, Fen Bilimleri Enstitüsü, 2023) Gülbahar, İbrahim Tümay; Sütçü, MuhammedElectric vehicles are now regarded as one of the best and greenest replacements for internal combustion engine vehicles. For the widespread use of electric vehicles, the construction of the vehicle charging network and, in particular, the choice of the appropriate site for the charging stations, are viewed as critical issues. The majority of studies on the topic concentrate on well-known locations like city centers, shopping malls, and airports. Because there are so many alternative charging stations, even though these and comparable locations are regularly used in everyday life, they can usually provide an appropriate solution to the daily charging need. For intercity travel, it is impossible to find enough charging stations, especially on highways. To choose the position of electric vehicle charging stations on highways, a decision model has been suggested in this study. The anticipated number of electric vehicles in Türkiye over the next few years is projected in order to acquire a realistic approach to the location of charging stations, and this amount is employed as a significant input in the facility positioning model. The best places for charging stations on state highways that can meet customer demand were then identified using an optimization technique. The suggested model selects the most suitable locations for charging stations and the number of chargers that should be installed there while also making sure that drivers of electric vehicles on highways don't run into charging issues.Article Analysis of Under-Five Mortality by Diseases in Countries With Different Levels of Development: a Comparative Analysis(2023) Ersöz, Nur Şebnem; Sütçü, Muhammed; Şahan, Pınar GünerObjectives: The right to health is critical for children because they are sensitive beings who are more susceptible to disease and health problems. It would be beneficial to compare child mortality rates in countries with different levels of development and to conduct studies to address them by taking into account their causes. This study aims to analyze the situation of developed, developing and least developed countries in terms of causes under-5 child mortality (U5CM) determined by World Health Organization and to identify the similarities or differences of under-five mortality. Methods: Child mortality rates per 1,000 live births between 2000 and 2017 years in between different age groups (0-27 days and 1-59 months) by causes (disease-specific) were obtained from World Health Organization for a total 15 countries including developed, developing and least developed countries. Regression analysis was performed to identify which causes have more impact on child mortality. In addition, the relationship between diseases was calculated using Euclidean distance, and diseases were clustered using k-means clustering algorithm for each country. Results: As a result of mathematical and statistical analysis, it was seen that causes of child mortality have a significant relation with the development level of country where a child was born. Conclusions: It has been observed that the causes of child mortality in countries with different levels of development vary depending on different factors such as geographical conditions, air quality population and access to medicine.Doctoral Thesis Optimal Decision-Making for Operations of Smart Grids and Microgrids(2025) Şahin, Kübra Nur; Sütçü, MuhammedYenilenebilir enerji kaynaklarının artan entegrasyonu ve elektrik üretiminin merkeziyetsizleşerek dağıtık hale gelmesi, güç sistemlerinde koordinasyon ve sistem güvenilirliği açısından önemli zorlukları beraberinde getirmiştir. Bu çalışma, akıllı enerji toplulukları için, olasılıksal modelleme, merkezî optimizasyon ve uyarlanabilir kontrol yaklaşımlarını bir araya getiren çok katmanlı bir metodolojik çerçeve sunmaktadır. İlk aşamada, meteorolojik değişkenler arasındaki karmaşık doğrusal olmayan ilişkileri modelleyebilen ve rüzgâr enerjisi potansiyelini belirsizlik altında değerlendirebilen, kopula teorisi, derin öğrenme ve karar ağaçlarını birleştiren hibrit bir yöntem geliştirilmiştir. İkinci aşamada, farklı hane yapılarını içeren bir şebekede, dağıtık enerji kaynaklarının zamanlaması ve eşler arası (P2P) enerji ticaretinin optimizasyonu için Karışık Tamsayılı Doğrusal Programlama (MILP) tabanlı model tasarlanmıştır. Son aşamada ise, kural tabanlı karar verme yapısı, Derin Deterministik Politika Gradyanı (DDPG) algoritması ile geliştirilerek, gerçek zamanlı fiyatlandırma ve merkezsiz karar alma yeteneklerine sahip bir operasyonel kontrol ortamı oluşturulmuştur. Geliştirilen model, değişken sistem koşullarına uyum sağlamakta, enerji yönetimini optimize etmekte ve belirsizlik altında uzun vadeli sistem performansını artırmaktadır. Bu çalışma, enerji sistemlerinde kaynak değerlendirmesinden operasyonel kontrole uzanan; deterministik planlamayı gerçek zamanlı, öğrenen yapılarla bütünleştiren kapsamlı bir karar destek mimarisi sunmaktadır. Elde edilen bulgular, dağıtık yenilenebilir kaynakların entegrasyonunu destekleyen, esnek, dayanıklı ve sürdürülebilir enerji sistemlerinin geliştirilmesine katkı sunmaktadır.
