Doruk Sen
Current Organizations / Institutes
The organizations/institutes from the scholar's latest article
Previous Organizations / Institutes
The organizations / institutes from the scholar's other articles in the past ten years
Doruk Sen has a total of 20 co-authors. Here are the top co-authors by number of shared publications:
K.M. Murat Tunç
3 shared publications- Cem Çağrı Dönmez
Marmara University
2 shared publications M. Erdem Günay
2 shared publications- Mehmet Erdem Günay
Department of Energy Systems Engineering, Istanbul Bilgi University, Eyup, Istanbul, 34060, Turkey
2 shared publications Ozalp Vayvay
2 shared publicationsAhmet Karakas
University of California Davis, USA
1 shared publication
Latest Publications
- Open Access
- 12 June 2026
- Published by Universidad de Navarra in Communication & Society
- p. 243-262
Media oligarchs and the attention economy: ownership dynamics in Slovenia’s media system
This study examines the transformation of the Slovenian media field from the press crisis of the early 2010s to the present, focusing on horizontal and vertical integration strategies employed by media entities and their effects on public communication in an increasingly competitive attention economy. The research situates Slovenia’s media system within broader regional trends, including de-Westernization characterized by Western media disinvestment, the emergence of domestic oligarchs acquiring foreign ownership, and the proliferation of politically instrumentalized media networks (party press). Conceptually, the study contrasts the political economy of “hybrid” media companies—shaped by technological advancements, competitive pressures, and profit-driven imperatives—with the normative role of media as a democratic pillar that ensures credible information and fosters public participation. This tension highlights the inherent conflict between commercial priorities, which emphasize revenue and market dominance, and democratic ideals, which envision the media as a watchdog and a forum for public debate. Employing social network analysis—an underutilized method in media ownership research—the study reveals a highly concentrated media market with significant shifts in ownership over the last decade. Findings show a decline in print media, substantial growth in online media, and increasing ownership consolidation around a small number of individuals, resulting in a more centralized media landscape. By comparing data from 2010 and 2022, the study identifies key media clusters that dominate the field, including local conglomerates, regional media giants, and politically affiliated media networks, emphasizing their visibility and influence in shaping the Slovenian media landscape.
- 12 June 2026
- Published by Universidad de Navarra in Communication & Society
- p. 243-262
Open AccessMedia oligarchs and the attention economy: ownership dynamics in Slovenia’s media system
This study examines the transformation of the Slovenian media field from the press crisis of the early 2010s to the present, focusing on horizontal and vertical integration strategies employed by media entities and their effects on public communication in an increasingly competitive attention economy. The research situates Slovenia’s media system within broader regional trends, including de-Westernization characterized by Western media disinvestment, the emergence of domestic oligarchs acquiring foreign ownership, and the proliferation of politically instrumentalized media networks (party press). Conceptually, the study contrasts the political economy of “hybrid” media companies—shaped by technological advancements, competitive pressures, and profit-driven imperatives—with the normative role of media as a democratic pillar that ensures credible information and fosters public participation. This tension highlights the inherent conflict between commercial priorities, which emphasize revenue and market dominance, and democratic ideals, which envision the media as a watchdog and a forum for public debate. Employing social network analysis—an underutilized method in media ownership research—the study reveals a highly concentrated media market with significant shifts in ownership over the last decade. Findings show a decline in print media, substantial growth in online media, and increasing ownership consolidation around a small number of individuals, resulting in a more centralized media landscape. By comparing data from 2010 and 2022, the study identifies key media clusters that dominate the field, including local conglomerates, regional media giants, and politically affiliated media networks, emphasizing their visibility and influence in shaping the Slovenian media landscape.
- 10 April 2026
- Published by Uludag University Journal of the Faculty of Engineering in Uludağ University Journal of The Faculty of Engineering
- Vol. 31 (1) , 21-40
ÜNİVERSİTELERİN LİSANS PROGRAMLARINDAKİ PROGRAM ÇIKTILARININ BAŞARI DÜZEYLERİ İLE ÖĞRENCİLERİN EDİNİM DÜZEYLERİNİN ÖLÇÜMÜ İÇİN BİR İZLEME VE KARAR DESTEK SİSTEMİ
Türkiye’de lisans programlarının sayısındaki artış, beraberinde program kalitesinin güvence altına alınmasını zorunlu kılmış ve bu durum, birçok üniversiteyi ulusal ve uluslararası akreditasyon süreçlerine yönlendirmiştir. Bu süreçlerin merkezinde, programların tanımladığı öğrenme çıktılarının tüm öğrencilere ne ölçüde kazandırıldığını gösteren ölçülebilir kanıtların sunulması yer almaktadır. Ancak mevcut sistemler çoğu zaman karmaşık, maliyetli ya da esneklikten uzak olabilmektedir. Bu çalışmada, bu ihtiyaca yönelik olarak geliştirilen, Microsoft Excel tabanlı, kullanıcı dostu ve esnek bir karar destek sistemi tanıtılmaktadır. Geliştirilen sistem, lisans programlarındaki öğrenme çıktılarının başarı düzeylerinin izlenmesini, belgelenmesini ve analiz edilmesini kolaylaştırmaktadır. Sistem, öğretim elemanlarının girdiği ders bazlı değerlendirme verilerini kullanarak program çıktıları bazında bütüncül bir başarı değerlendirmesi sunmakta ve iyileştirme alanlarını belirlemeye yardımcı olmaktadır. Esnek yapısı sayesinde farklı fakültelerdeki lisans programlarına kolayca uyarlanabilme potansiyeline sahip olan sistemin yapısı, uygulama adımları ve sağladığı çıktılar detaylı biçimde ele alınmış; bir lisans programının beş yıllık değerlendirilmesi üzerinden bir uygulama örneği üzerinden sürekli iyileştirme bileşenlerinde etkili bir araç olarak kullanılabileceği gösterilmiştir.
- 10 April 2026
- Published by Uludag University Journal of the Faculty of Engineering in Uludağ University Journal of The Faculty of Engineering
- Vol. 31 (1) , 21-40
ÜNİVERSİTELERİN LİSANS PROGRAMLARINDAKİ PROGRAM ÇIKTILARININ BAŞARI DÜZEYLERİ İLE ÖĞRENCİLERİN EDİNİM DÜZEYLERİNİN ÖLÇÜMÜ İÇİN BİR İZLEME VE KARAR DESTEK SİSTEMİ
Türkiye’de lisans programlarının sayısındaki artış, beraberinde program kalitesinin güvence altına alınmasını zorunlu kılmış ve bu durum, birçok üniversiteyi ulusal ve uluslararası akreditasyon süreçlerine yönlendirmiştir. Bu süreçlerin merkezinde, programların tanımladığı öğrenme çıktılarının tüm öğrencilere ne ölçüde kazandırıldığını gösteren ölçülebilir kanıtların sunulması yer almaktadır. Ancak mevcut sistemler çoğu zaman karmaşık, maliyetli ya da esneklikten uzak olabilmektedir. Bu çalışmada, bu ihtiyaca yönelik olarak geliştirilen, Microsoft Excel tabanlı, kullanıcı dostu ve esnek bir karar destek sistemi tanıtılmaktadır. Geliştirilen sistem, lisans programlarındaki öğrenme çıktılarının başarı düzeylerinin izlenmesini, belgelenmesini ve analiz edilmesini kolaylaştırmaktadır. Sistem, öğretim elemanlarının girdiği ders bazlı değerlendirme verilerini kullanarak program çıktıları bazında bütüncül bir başarı değerlendirmesi sunmakta ve iyileştirme alanlarını belirlemeye yardımcı olmaktadır. Esnek yapısı sayesinde farklı fakültelerdeki lisans programlarına kolayca uyarlanabilme potansiyeline sahip olan sistemin yapısı, uygulama adımları ve sağladığı çıktılar detaylı biçimde ele alınmış; bir lisans programının beş yıllık değerlendirilmesi üzerinden bir uygulama örneği üzerinden sürekli iyileştirme bileşenlerinde etkili bir araç olarak kullanılabileceği gösterilmiştir.
- 15 April 2023
- Published by Springer Nature in Neural Computing and Applications
- Vol. 35 (21) , 15601-15614
Prediction of global temperature anomaly by machine learning based techniques
- 15 April 2023
- Published by Springer Nature in Neural Computing and Applications
- Vol. 35 (21) , 15601-15614
Prediction of global temperature anomaly by machine learning based techniques
- 13 December 2022
- Published by Elsevier in Resources Policy
- Vol. 80
Forecasting long-term world annual natural gas production by machine learning
- 13 December 2022
- Published by Elsevier in Resources Policy
- Vol. 80
Forecasting long-term world annual natural gas production by machine learning
- 30 December 2021
- Published by Marmara University in International Journal of Advances in Engineering and Pure Sciences
- Vol. 33 (4) , 636-650
Kriptopara Dinamikleri: Bitcoin Cash, Ethereum, Litecoin ve Ripple
Bu makalenin amacı kriptopara birimleri olarak da adlandırılan merkezi olmayan para birimleri olan Bitcoin Cash, Ethereum, Litecoin ve Ripple arasındaki ilişkilerin ortaya çıkarılmasıdır. Çalışmada üzerinde çalışılan dönem 03.08.2017 – 17.03.2020 tarihleri arasıdır. Çalışmada birim kök testi olarak Augmented Dickey-Fuller (ADF) testi uygulanarak serilerin durağan olduğu düzeyler saptanmış ve aralarındaki nedensellik ilişkisi Granger nedensellik testi ile sınanmıştır. Seriler arasındaki ilişkilerin yönü ve büyüklüğü, vektör otoregresif (VAR) model tekniğiyle belirlenmeye çalışılmıştır. Ayrıca, etki-tepki analizleri ve varyans ayrıştırma analizleri yapılarak serilerin standart sapmasında meydana gelen değişimin dönem bazında % kaçının diğer değişkenler tarafından açıklandığı ortaya konmuştur.
- 30 December 2021
- Published by Marmara University in International Journal of Advances in Engineering and Pure Sciences
- Vol. 33 (4) , 636-650
Kriptopara Dinamikleri: Bitcoin Cash, Ethereum, Litecoin ve Ripple
Bu makalenin amacı kriptopara birimleri olarak da adlandırılan merkezi olmayan para birimleri olan Bitcoin Cash, Ethereum, Litecoin ve Ripple arasındaki ilişkilerin ortaya çıkarılmasıdır. Çalışmada üzerinde çalışılan dönem 03.08.2017 – 17.03.2020 tarihleri arasıdır. Çalışmada birim kök testi olarak Augmented Dickey-Fuller (ADF) testi uygulanarak serilerin durağan olduğu düzeyler saptanmış ve aralarındaki nedensellik ilişkisi Granger nedensellik testi ile sınanmıştır. Seriler arasındaki ilişkilerin yönü ve büyüklüğü, vektör otoregresif (VAR) model tekniğiyle belirlenmeye çalışılmıştır. Ayrıca, etki-tepki analizleri ve varyans ayrıştırma analizleri yapılarak serilerin standart sapmasında meydana gelen değişimin dönem bazında % kaçının diğer değişkenler tarafından açıklandığı ortaya konmuştur.
- 1 June 2021
- Published by Elsevier in Utilities Policy
- Vol. 70
Forecasting electricity consumption of OECD countries: A global machine learning modeling approach
- 1 June 2021
- Published by Elsevier in Utilities Policy
- Vol. 70
Forecasting electricity consumption of OECD countries: A global machine learning modeling approach
- 3 July 2020
- Published by Springer Nature in Information Systems Frontiers
- Vol. 22 (5) , 1009-1019
A Hybrid Bi-level Metaheuristic for Credit Scoring
- 3 July 2020
- Published by Springer Nature in Information Systems Frontiers
- Vol. 22 (5) , 1009-1019
A Hybrid Bi-level Metaheuristic for Credit Scoring
- Open Access
- 1 March 2018
- Published by Natural Science Simulations and Engineering Laboratory in International Journal of Computational Physics Series
- Vol. 1 (1) , 151-160
Desirability Index with Sector Analysis for Investment Decisions by Bernoulli Theorem: A Case of FTSE-100
Due to complex and sophisticated nature of financial markets, many features including psychological, political and economic can influence the routine behaviour and considered by characteristic nonlinearities. There have been many efforts about the stock market prediction by using technical analysis methods. Concerning the application area of entropy into economics which could be referred as econophysics; there are two approaches that could be investigated within. These two could be named as ontological and metaphorical. As the Second Law of Thermodynamics has a critical role in the concept of ontological approach, the economy is considered as processes of physics and biology that are brought by energy while the metaphorical approach is more concerned with the application of finance and equilibrium theory on the info design of entropy. This research takes the metaphorical approach to the investigation of Oil & Gas Producers industry sector of the London Stock Exchange’s FTSE-100 index. First, we observed the necessity to analyse each stock with the Bernoulli Theorem to compute an index for the desirability of each to express the complexity of the investment decisions. Then, an analysis is conducted for the sector with the computation. During the computation phase, macroeconomic figures are introduced to the Bernoulli Theorem, as inflation. In addition to this, other stock movements in the sector are introduced for precise prediction as well as the parameter of the trading volume of each stock. With the suggested approach, the desirability index is formed as an unconventional theoretical approach within econophysics for expression of the complex nature of investment environment.
- 1 March 2018
- Published by Natural Science Simulations and Engineering Laboratory in International Journal of Computational Physics Series
- Vol. 1 (1) , 151-160
Open AccessDesirability Index with Sector Analysis for Investment Decisions by Bernoulli Theorem: A Case of FTSE-100
Due to complex and sophisticated nature of financial markets, many features including psychological, political and economic can influence the routine behaviour and considered by characteristic nonlinearities. There have been many efforts about the stock market prediction by using technical analysis methods. Concerning the application area of entropy into economics which could be referred as econophysics; there are two approaches that could be investigated within. These two could be named as ontological and metaphorical. As the Second Law of Thermodynamics has a critical role in the concept of ontological approach, the economy is considered as processes of physics and biology that are brought by energy while the metaphorical approach is more concerned with the application of finance and equilibrium theory on the info design of entropy. This research takes the metaphorical approach to the investigation of Oil & Gas Producers industry sector of the London Stock Exchange’s FTSE-100 index. First, we observed the necessity to analyse each stock with the Bernoulli Theorem to compute an index for the desirability of each to express the complexity of the investment decisions. Then, an analysis is conducted for the sector with the computation. During the computation phase, macroeconomic figures are introduced to the Bernoulli Theorem, as inflation. In addition to this, other stock movements in the sector are introduced for precise prediction as well as the parameter of the trading volume of each stock. With the suggested approach, the desirability index is formed as an unconventional theoretical approach within econophysics for expression of the complex nature of investment environment.
- Open Access
- 1 March 2018
- Published by Natural Science Simulations and Engineering Laboratory in International Journal of Computational Physics Series
- Vol. 1 (1) , 142-150
Theoretical Post-Dryout Heat Transfer Model
A theoretical post-dryout heat transfer model is developed for two-phase dispersed flow, one-dimensional vertical pipe in a post-CHF regime. Because of the presence of average droplet diameter lower bound in a two-phase sparse flow. Droplet diameter is also calculated. Obtained results are compared with experimental values. Experimental data is used two-phase flow steam-water in VVER-1200, reactor coolant system, reactor operating pressure is 16.2 MPa. On heater rod surface, dryout was detected as a result of jumping increase of the heater rod surface temperature. Results obtained display lower droplet dimensions than the experimentally obtained values.
- 1 March 2018
- Published by Natural Science Simulations and Engineering Laboratory in International Journal of Computational Physics Series
- Vol. 1 (1) , 142-150
Open AccessTheoretical Post-Dryout Heat Transfer Model
A theoretical post-dryout heat transfer model is developed for two-phase dispersed flow, one-dimensional vertical pipe in a post-CHF regime. Because of the presence of average droplet diameter lower bound in a two-phase sparse flow. Droplet diameter is also calculated. Obtained results are compared with experimental values. Experimental data is used two-phase flow steam-water in VVER-1200, reactor coolant system, reactor operating pressure is 16.2 MPa. On heater rod surface, dryout was detected as a result of jumping increase of the heater rod surface temperature. Results obtained display lower droplet dimensions than the experimentally obtained values.