Sürdürülebilir Kalkınma Amaçları
Yazarlar
Yayınlar
- MakaleAçık Erişim2025Lightweight Transformer Model for Agricultural Land Use and Land Cover Classification
Celik, Kemal
Observing agricultural land use via remote sensing images is essential for ensuring food security, estimating yields and planning efficient exports nonetheless precise classification continues to be difficult because of the varied and evolving characteristics of agricultural environments. This research aims to evaluate and optimize advanced deep learning architectures particularly Vision Transformer (ViT) models for agricultural land-use classification tasks. Specifically, we employed ViT-Base-16 and other lightweight models DeiT-Tiny and EfficientNet-B0 applying techniques such as model layer compression and advanced data augmentation CutMix and Cutout to achieve high accuracy while significantly reducing computational complexity. Evaluation was performed using three benchmark remote sensing datasets EuroSAT, NWPU-RESISC45 and SIRI-WHU which include diverse spatial resolutions and agricultural classes relevant for practical monitoring. Findings indicate that the optimized ViT algorithm is highly effective in recognizing global spatial connections, consistently achieving remarkable classification accuracy exceeding 99% on a newly assembled dataset containing around 200 samples of Google Earth imagery. Furthermore, for the first time in agricultural image classification compressing the ViT-Base model by pruning 50% of its layers significantly reduced complexity maintaining competitive accuracy 97.9% on SIRI-WHU. The resulting models are particularly suitable for deployment on devices with limited computational resources supporting real-world operational agricultural monitoring systems. This study emphasizes the revolutionary possibilities and practical use of optimized transformer-based models that offer scalable and efficient solutions specifically designed for precision agriculture applications.
- MakaleYayıncıda açık erişim2024Economic impact of local geographical indication products on farmers: a case of Kelkit sugar (dry) beans
Dogan, Nilgun
This study aims to present the economic impact of the production of local Geographical Indication (GI) products on producers based on the example of GI Kelkit sugar (dry) beans. Kelkit sugar beans, which are cultivated using local seeds, are legume products with white seeds and pink spots. Sugar beans grown around the Kelkit district of Gümüşhane were registered as a geographical indication product by the Turkish Patent and Trademark Office (TPO) in 2020. This study seeks to answer the question of how the production of Kelkit sugar beans, which are mainly marketed with a geographical indication label, affects producer welfare. The target group of the research consists of farmers living in the Kelkit, Siran, and Kose districts of Gümüşhane who use GI-labelled seeds and do not use GI-labelled seeds in beans production. Propensity Score Matching was employed to determine the economic impact of the production of local geographical indication products on producers. The results indicate that the agricultural enterprises participating in the Kelkit sugar beans production program using geographical indication seeds have lower gross output and gross profit per unit area than those who did not participate in the program.
- MakaleYayıncıda açık erişim2023Worldwide cotton production and trade during COVID-19 pandemic: An empirical analysis for a three-year observation
Erkencioglu, Bedriye N.; Zuhal, Mustafa; Tokel, Dilek; Ozyigit, Ibrahim I.
The COVID-19 pandemic has posed a significant impact on agriculture. Due to its importance in world trade and human life, the effects of the pandemic on the cotton economy were evaluated by using the data of important organizations such as the U.S. Department of Agriculture, the World Trade Organization, and International Cotton Advisory Committee in this study. With the Chow test, which measures of structural breaks, the effects of COVID-19 on cotton production and trade were examined. According to the Chow test results, the pandemic had no significant effect on cotton production, exports and imports in the People’s Republic of China and Türkiye, while being highly influential on cotton production and exports in the U.S. and Brazil. Distinctively, in Pakistan, it had a significant impact on cotton production and import. It was observed that although the demand, trade and prices for cotton were descended, the cotton prices started to recover with the increase in demand in the third quarter of 2020. In June 2022, the highest peak in cotton prices was observed. As a conclusion, it is shown that cotton production and trade during the pandemic were affected in all countries except People’s Republic of China and Türkiye. However, the marks of the effects of factors such as decreasing stocks, uncertainties in national economies, high inflation and increase in production costs on the cotton economy will be better understood in the coming years.
- Yüksek Lisans TeziAçık Erişim2022Osmanlı sosyalist iktisat düşünürlerinden Parvus Efendi ile Rasim Haşmet Bey'in karşılaştırılması
Gülşah Duru Doğan
Bu tez sosyalist yazarlardan Parvus Efendi ve Rasim Haşmet Bey hakkında bilgi vermeyi ve yazarların fikirlerinin ne ölçüde sosyalist düşünce kapsamına girdiğini incelemeyi aynı zamanda yaşanılan dönem üzerinden iktisadi meseleler ele alınarak yazarların Osmanlı iktisadi uygulamaları ile örtüşen veya ayrışan fikirler ileri sürüp sürmediğini tespit etmeyi amaçlamıştır. Bu amaçla öncelikle Parvus Efendi ve Rasim Haşmet Bey gibi düşünür ve devlet adamlarının yaklaşımlarından bahsedilmiştir. Daha sonrasında Sosyalizm, Sosyalizmden Komünizme Geçiş ve Osmanlı'da Sosyalist İktisat Düşüncesi başlıklarına değinilmiştir. İncelenen yazarların sosyalizmle etkileşimleri üzerinde durulmuştur. Akabinde 1910-1914 yılları arasında, Osmanlı Devleti'nin iktisadi modernleşme ve kalkınma sorunları ele alınarak Borçlanma, Düyun-u Umumiye İdaresi, Demiryolu, Kapitülasyonlar, Tarım ve Köylülük, Sanayileşme, Kaime, başlıklarına değinilmiştir. Osmanlı Devleti'nin içinde bulunduğu iktisadi durum ele alınarak Parvus Efendi'nin konular üzerindeki iktisadi fikirlerinden bahsedilmiştir. Parvus Efendi'nin iktisadi düşüncesine zenginlik katmak adına Rasim Haşmet Bey'in görüşlerinden yararlanılması düşünülmüştür. Netice yazarların fikirlerinin ne ölçüde sosyalist düşünce kapsamına girdiği, Osmanlı Devleti'nin iktisat politikaları ile yazarların iktisadi fikirlerinin hangi noktalarda örtüştüğü veya ayrıştığı hususları değerlendirilmiştir.