Publications & Works

Publication Network
Articles 11
All (11)
SCI-E, SSCI, AHCI (4)
SCI-E, SSCI, AHCI, ESCI (10)
ESCI (6)
Scopus (7)
TRDizin (7)
Other Publications (1)

1. Implementation of a Chaotic Particle Swarm Optimization Algorithm to Estimate the Parameters of Weibull Distribution

KOÇAK E., AKSEL B., ÖRKCÜ H. H.
JOURNAL OF POLYTECHNIC-POLITEKNIK DERGISI , 2025 (ESCI, TRDizin) Creative Commons License identifier

2. The Parameter Estimation of the COVID-19 Death Based on the Gumbel Distribution Through the Multi-objective Programming: Turkey Case

Demir Yurtseven E., Koçak E., Örkcü H. H.
GAZI UNIVERSITY JOURNAL OF SCIENCE , vol.37, no.4, pp.2085-2094, 2024 (ESCI, Scopus, TRDizin) identifier identifier

3. Particle swarm optimization based feature selection using factorial design

Koçak E., Örkcü H. H.
HACETTEPE JOURNAL OF MATHEMATICS AND STATISTICS , vol.53, no.3, pp.879-896, 2024 (SCI-Expanded, Scopus) identifier identifier

4. Modeling of wind speed using differential evolution: Istanbul case

Koçak E., Özsoy V. S., Örkcü H. H.
SIGMA JOURNAL OF ENGINEERING AND NATURAL SCIENCES-SIGMA MUHENDISLIK VE FEN BILIMLERI DERGISI , vol.42, no.3, pp.642-652, 2024 (ESCI, Scopus) identifier identifier

5. Towards net zero emissions target: Energy modelling of the transport sector in Turkiye

Dönmezçelik O., KOÇAK E., ÖRKCÜ H. H.
ENERGY , vol.279, 2023 (SCI-Expanded, Scopus) identifier identifier

6. Influence of Finishing Procedures on Surface Roughness and Biaxial Flexural Strength of High-translucent 4Y-PSZ, 5Y-PSZ, and 6Y-PSZ Monolithic Zirconia

Doğru G., Demiralp E., Koçak E., Örkcü H. H., Aydın P. D. C., Yılmaz H.
CLINICAL AND EXPERIMENTAL HEALTH SCIENCES , vol.13, no.1, pp.166-175, 2023 (ESCI, TRDizin) identifier identifier

7. Energy Modeling of T?rkiye Road and Rail Transport Towards Net Zero Emissions Target (2025-2050)

Dönmezçelik O., Koçak E., Örkcü H. H.
JOURNAL OF POLYTECHNIC-POLITEKNIK DERGISI , 2023 (ESCI, TRDizin) Sustainable Development identifier

8. A multi-objective programming approach to Weibull parameter estimation

KOÇAK E., DEMİR YURTSEVEN E., ÖRKCÜ H. H.
HACETTEPE JOURNAL OF MATHEMATICS AND STATISTICS , vol.51, no.2, pp.543-558, 2022 (SCI-Expanded, Scopus, TRDizin) Creative Commons License identifier identifier identifier

9. A multi-objective programming-based approach to material life prediction: Weibull distribution application

KOÇAK E., ÖRKCÜ H. H.
JOURNAL OF THE FACULTY OF ENGINEERING AND ARCHITECTURE OF GAZI UNIVERSITY , vol.37, no.4, pp.1783-1792, 2022 (SCI-Expanded, Scopus, TRDizin) identifier identifier identifier

10. Measuring the Efficiency of Turkish State Universities Based on a Two-Stage DEA Model

KOÇAK E., ÖRKCÜ H. H.
GAZI UNIVERSITY JOURNAL OF SCIENCE , vol.34, no.4, pp.1210-1220, 2021 (ESCI, Scopus, TRDizin) Creative Commons License identifier identifier identifier

11. Parametre Tahmininde Farklı Doğrusal Programlama Modellerinin Karşılaştırılması

Koçak E., Örkcü H. H.
Gazi Üniversitesi Fen Fakültesi Dergisi (GÜFFD) , vol.1, pp.22-35, 2020 (Peer-Reviewed Journal)
Papers Presented at Peer-Reviewed Scientific Conferences 12

1. Use of the Jaya Algorithm in the Parameter Estimation of Three-Parameter Weibull Distribution

Koçak E.
VI. International Applied Statistics Congress, Ankara, Turkey, 14 - 16 May 2025, pp.41, (Summary Text)

2. KABA DOĞUM ORANLARI İÇİN MEKÂNSAL ANALİZ YÖNTEMLERİ

KOÇAK E., TÜZÜNER Z., BAL H.
3. ULUSLARARASI AKADEMIK ÖGRENCI ÇALISMALARI KONGRESI, Ankara, Turkey, 14 - 15 November 2019, (Full Text)

3. Havalimanları Performanslarının Malmquist Endeksi İle İncelenmesi

TÜZÜNER Z., KOÇAK E., BAL H.
3.Uluslararası Akademik Öğrenci Çalışmaları Kongresi, 14 - 15 November 2019, (Full Text)

4. Evaluating the Performance of State Universities in Turkey With Two-Stage Data Envelopment Analysis

KOÇAK E., BAL H.
International Symposium on Academic Studies in Science, Engineering and Architecture Studies, Ankara, Turkey, 13 - 15 June 2019, pp.53-61, (Full Text)

5. Comparison of DEA models for the performance evaluation of the world’xxs top D investing companies the Automobiles Parts Industry

BAL H., ÖZSOY V. S., KOÇAK E.
IV. International Congress on Social and Economic Sciences, Budapest, Hungary, 26 - 30 November 2018, pp.20-25, (Full Text)

6. Efficiency And Spatial Regression Analysis Related To Illiteracy Rate

TÜZÜNER Z., KOÇAK E.
10th International Statistics Congress, 6 - 08 December 2017, (Summary Text)

7. SORTING OF DECISION MAKING UNITS USING MCDM THROUGH THE WEIGHTS OBTAINED WITH DEA

KOÇAK E., TÜZÜNER Z.
10th International Statistics Congress, 6 - 08 December 2017, (Summary Text)

8. Evaluation of the Life Index Based on Data Envelopment Analysis: Quality of Life Indexes of Turkey

ÖZSOY V. S., KOÇAK E.
10th International Statistics Congress, 6 - 08 December 2017, pp.126, (Summary Text)

9. The Health Performances of the Turkey Cities by the Mixed Integer DEA Models

TÜZÜNER Z., ÖRKCÜ H. H., BAL H., ÖZSOY V. S., KOÇAK E.
10th International Statistics Congress, 6 - 08 December 2017, pp.130, (Summary Text)

10. SPATIAL INTERACTION ANALYSIS RELATED TO INSTITUTIONAL LITERACY RATE PERFORMANCE

TÜZÜNER Z., KOÇAK E.
International Conference On Computational and Statistical Methods in Applied Sciences, 9 - 11 November 2017, (Summary Text) Sustainable Development

11. RANKING OF EFFICIENT DECISION MAKING UNITS USING TOPSIS VIA OBJECTIVE WEIGHTS

KOÇAK E., BAL H.
International Conference on Computational and Statistical Methods in Applied Sciences, 9 - 11 November 2017, (Summary Text)

12. Measuring the Efficiency of OECD Countries In Terms Of Environmental Performance

KOÇAK E., YAPICI PEHLİVAN N.
3rd International Researchers, Statisticians and Young Statisticians Congress, Konya, Turkey, 24 - 26 May 2017, pp.280, (Summary Text)
Books 3

1. Yapay Zeka Temelli Optimizasyon Matlab ve Python Uygulamalarıyla

Örkcü H. H., Özsoy V. S., Koçak E.
Seçkin Yayıncılık, Ankara, 2024

2. Yöneylem Araştırması

Örkcü H. H., Özsoy V. S., Koçak E.
Seçkin Yayıncılık San. ve Tic. A.Ş., Ankara, 2024

3. Türkiye'de Bulunan Havalimanı Performanslarının İki Aşamalı Veri Zarflama Analizi İle İncelenmesi

ÖRKCÜ H. H., KOÇAK E.
in: Verimlilik Ölçümünde Güncel Yaklaşımlar, Koçak Deniz, Editor, Adalet Yayınevi, Ankara, pp.63-73, 2021
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