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Hacı Hasan Örkcü Prof. Dr. GAZI UNIVERSITY
Publication 34 Review 28 CrossRef Cited 19
34 Publication
28 Review
19 CrossRef Cited

Research Fields

Statistical Analysis Operation Classification Algorithms Statistics (Other) Statistical Data Science Mathematical Optimisation

Institution

GAZI UNIVERSITY

Publications

A Bimax Biclustering Analysis of Crime Types by Nationality in Türkiye
Authors: Ahmet Kocatürk , Demet Albasar , Hacı Hasan Örkcü
Published: 2026 , Journal of Polytechnic
DOI: 10.2339/politeknik.1780485
FAVORITE 0 TOTAL DOWNLOAD COUNT 266

0

266

Implementation of a Chaotic Particle Swarm Optimization Algorithm to Estimate the Parameters of Weibull Distribution
Authors: Emre Koçak , Büşra Aksel , Hacı Hasan Örkcü
Published: 2026 , Journal of Polytechnic
DOI: 10.2339/politeknik.1733077
FAVORITE 0 TOTAL DOWNLOAD COUNT 406

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406

Mapping Criminal Activities Using Biclustering Methods based on Nationality Information of Offenders
Authors: Ramazan Arslan , H. Hasan Örkcü , Ahmet Kocatürk
Published: 2026 , Gazi University Journal of Science
DOI: 10.35378/gujs.1716857
FAVORITE 0 TOTAL DOWNLOAD COUNT 1208

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1208

Türkiye'deki üniversitelerin performans değerlendirmesi: İkili kümeleme analizi ve en etkili VZA modeline dayalı bir yaklaşım
Authors: Ahmet Kocatürk , Emre Koçak , Hacı Hasan Örkcü
Published: 2026 , Gazi Üniversitesi Mühendislik Mimarlık Fakültesi Dergisi
DOI: 10.17341/gazimmfd.1650429
FAVORITE 0 TOTAL DOWNLOAD COUNT 504

0

504

Türkiye’deki Suç Türlerinin İllere Göre İkili Kümeleme Yöntemiyle İncelenmesi
Authors: Demet Albasar , Ahmet Kocatürk , Hacı Hasan Örkcü
Published: 2025 , Gazi Üniversitesi Fen Fakültesi Dergisi
DOI: 10.63716/guffd.1748380
FAVORITE 0 TOTAL DOWNLOAD COUNT 1935

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1935

Ranking Decision Making Units (DMUs) Using Support Vector Machines (SVM) & Ideal DMU
Authors: Mehmet Ünsal , Volkan Soner Özsoy , H. Hasan Örkcü
Published: 2025 , Journal of Turkish Operations Management
DOI: 10.56554/jtom.1532492
FAVORITE 0 TOTAL DOWNLOAD COUNT 464

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464

The parameter estimation of the COVID-19 death based on the Gumbel distribution through the multi-objective programming: Turkey case
Authors: Ecem Demir Yurtseven , Emre Koçak , H. Hasan Örkcü
Published: 2024 , Gazi University Journal of Science
DOI: 10.35378/gujs.1393264
FAVORITE 0 TOTAL DOWNLOAD COUNT 594

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594

Energy Modeling of Türkiye Road and Rail Transport Towards Net Zero Emissions Target (2025-2050)
Authors: Onur Dönmezçelik , Emre Koçak , H. Hasan Örkcü
Published: 2024 , Journal of Polytechnic
DOI: 10.2339/politeknik.1212520
FAVORITE 0 TOTAL DOWNLOAD COUNT 3381

0

3381

Particle swarm optimization based feature selection using factorial design
Authors: Emre Koçak , H. Hasan Örkcü
Published: 2024 , Hacettepe Journal of Mathematics and Statistics
DOI: 10.15672/hujms.1346686
FAVORITE 0 TOTAL DOWNLOAD COUNT 1513

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1513

Modeling of wind speed using differential evolution: Istanbul case
Authors: Emre Koçak , Volkan Soner Özsoy , H. Hasan Örkcü
Published: 2024 , Sigma Journal of Engineering and Natural Sciences
DOI: -
FAVORITE 0 TOTAL DOWNLOAD COUNT 667

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667

Analysis of the Performance of METU Technoparks Firms with Data Envelopment Analysis
Authors: H. Hasan Örkcü , Özge Sevim
Published: 2023 , Journal of Polytechnic
DOI: 10.2339/politeknik.685005
FAVORITE 0 TOTAL DOWNLOAD COUNT 1978

0

1978

Influence of Finishing Procedures on Surface Roughness and Biaxial Flexural Strength of High-translucent 4Y-PSZ, 5Y-PSZ, and 6Y-PSZ Monolithic Zirconia
Authors: Gülsüm Doğru , Elif Demiralp , Emre Koçak , H. Hasan Örkcü , Prof. Dr. Cemal Aydın , Handan Yılmaz
Published: 2023 , Clinical and Experimental Health Sciences
DOI: 10.33808/clinexphealthsci.1073010
FAVORITE 0 TOTAL DOWNLOAD COUNT 1834

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1834

A multi-objective programming approach to Weibull parameter estimation
Authors: Emre Koçak , Ecem Demir Yurtseven , H. Hasan Örkcü
Published: 2022 , Hacettepe Journal of Mathematics and Statistics
DOI: 10.15672/hujms.912435
FAVORITE 0 TOTAL DOWNLOAD COUNT 1406

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1406

Madde ömrü tahmininde çok amaçlı programlama tabanlı bir yaklaşım: Weibull dağılımı uygulaması
Authors: Emre Koçak , H. Hasan Örkcü
Published: 2022 , Gazi Üniversitesi Mühendislik Mimarlık Fakültesi Dergisi
DOI: 10.17341/gazimmfd.918607
FAVORITE 0 TOTAL DOWNLOAD COUNT 1372

0

1372

Measuring the Efficiency of Turkish State Universities Based on a Two-Stage DEA Model
Authors: Emre Koçak , H. Hasan Örkcü
Published: 2021 , Gazi University Journal of Science
DOI: 10.35378/gujs.801115
FAVORITE 0 TOTAL DOWNLOAD COUNT 1065

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1065

Parametre Tahmininde Farklı Doğrusal Programlama Modellerinin Karşılaştırılması
Authors: Emre Koçak, H. Hasan Örkcü
Published: 2020 , Gazi Üniversitesi Fen Fakültesi Dergisi
DOI: 10.5281/zenodo.4317945
FAVORITE 0 TOTAL DOWNLOAD COUNT 864

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864

Karma-tamsayılı iki aşamalı veri zarflama analizi modeli ile en etkin tedarikçi seçimi
Authors: Volkan Soner Özsoy , Mediha Örkcü, Hasan Örkcü
Published: 2020 , Pamukkale University Journal of Engineering Sciences
DOI: -
FAVORITE 0 TOTAL DOWNLOAD COUNT 1148

0

1148

Risk Premium For Dependent Risks Using Utility Copulas And Risk Aversion
Authors: Kübra Durukan , Hasan Orkcu , Emel Kizilok Kara
Published: 2019 , Istatistik Journal of The Turkish Statistical Association
DOI: -
FAVORITE 0 TOTAL DOWNLOAD COUNT 828

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828

Çok gruplu sınıflandırma problemlerine regresyon analizi ve matematiksel programlama tabanlı yeni bir yaklaşım
Authors: Mustafa İsa Doğan , Abdullah Orman , Mediha Örkcü , H. Hasan Örkcü
Published: 2019 , Gazi Üniversitesi Mühendislik Mimarlık Fakültesi Dergisi
DOI: 10.17341/gazimmfd.571643
FAVORITE 0 TOTAL DOWNLOAD COUNT 1872

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1872

Şehirlerin Suç Türlerine Göre İkili Kümeleme Yöntemi ile Gruplandırılması: Türkiye Örneği
Authors: H. Hasan Örkcü , Bülent Altunkaynak, Ramazan Arslan
Published: 2018 , Süleyman Demirel University Journal of Natural and Applied Sciences
DOI: -
FAVORITE 0 TOTAL DOWNLOAD COUNT 3316

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3316

A modified test for detecting influential decision-making units in data envelopment analysis
Authors: İrmak Acarlar , Sinem Tuğba Şahin Tekin , H. Hasan Örkcü
Published: 2018 , Hacettepe Journal of Mathematics and Statistics
DOI: -
FAVORITE 0 TOTAL DOWNLOAD COUNT 1189

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1189

CLUSTERING OF CRIMINALS ACCORDING TO THE TYPES OF MATERIAL CAUGHT IN SMUGGLING: BICLUSTERING METHOD
Authors: Ramazan Arslan , Hacı Hasan Örkcü , Bülent Altunkaynak
Published: 2018 , International Journal of Economics and Administrative Studies
DOI: 10.18092/ulikidince.348119
FAVORITE 0 TOTAL DOWNLOAD COUNT 4001

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4001

CLUSTERING BY SECTORS ACCORDING TO THE TYPE OF FATAL ACCIDENTS IN TURKEY: THE BICLUSTERING METHOD
Authors: Ahmet Kocatürk , Bülent Altunkaynak , Hacı Hasan Örkcü
Published: 2018 , International Journal of Economics and Administrative Studies
DOI: 10.18092/ulikidince.348053
FAVORITE 0 TOTAL DOWNLOAD COUNT 3514

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3514

Ranking decision making units with the integration of the multi-dimensional scaling algorithm into PCA-DEA
Authors: Mehmet Guray Unsal , H. Hasan Orkcu
Published: 2017 , Hacettepe Journal of Mathematics and Statistics
DOI: -
FAVORITE 0 TOTAL DOWNLOAD COUNT 1004

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1004

ESTIMATING THE PARAMETERS OF NONLINEAR REGRESSION MODELS THROUGH PARTICLE SWARM OPTIMIZATION
Authors: Volkan Soner Özsoy , H.Hasan Örkçü
Published: 2016 , Gazi University Journal of Science
DOI: -
FAVORITE 0 TOTAL DOWNLOAD COUNT 7037

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7037

Veri Zarflama Analizi Tabanlı Yeni Bir Hibrid İki Gruplu Sınıflandırma Modeli
Authors: H. Hasan Örkcü , Mustafa İsa Doğan
Published: 2015 , Süleyman Demirel University Journal of Natural and Applied Sciences
DOI: -
FAVORITE 0 TOTAL DOWNLOAD COUNT 1585

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1585

DATA ENVELOPMENT ANALYSIS CROSS EFFICIENCY EVALUATION APPROACH TO THE TECHNOLOGY SELECTION
Authors: H.hasan Örkcü , Mediha Örkcü
Published: 2015 , Gazi University Journal of Science Part A: Engineering and Innovation
DOI: -
FAVORITE 0 TOTAL DOWNLOAD COUNT 1393

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1393

A Hybrid Applied Optimization Algorithm for Training Multi-Layer Neural Networks in Data Classification
Authors: H. Hasan Örkçü , Mustafa Doğan , Mediha Örkçü
Published: 2015 , Gazi University Journal of Science
DOI: -
FAVORITE 0 TOTAL DOWNLOAD COUNT 1764

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1764

A New Approach To Cross Efficiency In Data Envelopment Analysis and Performance Evaluation of Turkey Cities
Authors: H.hasan Örkcü , Hasan Bal
Published: 2012 , Gazi University Journal of Science
DOI: -
FAVORITE 0 TOTAL DOWNLOAD COUNT 1052

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1052

A COMBINING MATHEMATICAL PROGRAMMING METHOD FOR
Authors: H.hasan Örkcü , Hasan Bal
Published: 2011 , Gazi University Journal of Science
DOI: -
FAVORITE 0 TOTAL DOWNLOAD COUNT 1212

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1212

COMBINING THE DISCRIMINANT ANALYSIS AND THE DATA ENVELOPMENT ANALYSIS IN VIEW OF MULTIPLE CRITERIA DECISION MAKING: A NEW MODEL
Authors: Hasan Bal, H. Hasan Örkçü
Published: 2010 , Gazi University Journal of Science
DOI: -
FAVORITE 0 TOTAL DOWNLOAD COUNT 1474

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1474

The Comparison of Principal Component Analysis and Data Envelopment Analysis in Ranking of Decision Making Units
Authors: Filiz Kardıyen, H.hasan Örkcü
Published: 2010 , Gazi University Journal of Science
DOI: -
FAVORITE 0 TOTAL DOWNLOAD COUNT 2013

0

2013

A Goal Programming Approach to Weight Dispersion in Data Envelopment Analysis
Authors: Hasan Bal, H. Hasan Örkçü
Published: 2010 , Gazi University Journal of Science
DOI: -
FAVORITE 0 TOTAL DOWNLOAD COUNT 2085

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2085

An Alternative Model to Fisher and LinearProgramming Approaches in Two-Group Classification Problem: Minimizing Deviations from the Group Median (Review)
Authors: Hasan Bal, H.hasan Örkcü , Salih Çelebioğlu
Published: 2010 , Gazi University Journal of Science
DOI: -
FAVORITE 0 TOTAL DOWNLOAD COUNT 1198

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1198

Articles published in
Clinical and Experimental Health Sciences
Clinical and Experimental Health Sciences
Gazi University Journal of Science
Gazi University Journal of Science
Gazi University Journal of Science Part A: Engineering and Innovation
Gazi University Journal of Science Part A: Engineering and Innovation
Gazi Üniversitesi Fen Fakültesi Dergisi
Gazi Üniversitesi Fen Fakültesi Dergisi
Gazi Üniversitesi Mühendislik Mimarlık Fakültesi Dergisi
Gazi Üniversitesi Mühendislik Mimarlık Fakültesi Dergisi
Hacettepe Journal of Mathematics and Statistics
Hacettepe Journal of Mathematics and Statistics
International Journal of Economics and Administrative Studies
International Journal of Economics and Administrative Studies
Istatistik Journal of The Turkish Statistical Association
Istatistik Journal of The Turkish Statistical Association
Journal of Polytechnic
Journal of Polytechnic
Journal of Turkish Operations Management
Journal of Turkish Operations Management
Pamukkale University Journal of Engineering Sciences
Pamukkale University Journal of Engineering Sciences
Sigma Journal of Engineering and Natural Sciences
Sigma Journal of Engineering and Natural Sciences
Süleyman Demirel University Journal of Natural and Applied Sciences
Süleyman Demirel University Journal of Natural and Applied Sciences
Editorship
Gazi University Journal of Science
Gazi University Journal of Science
Section Editor
Gazi Üniversitesi Fen Fakültesi Dergisi
Gazi Üniversitesi Fen Fakültesi Dergisi
Section Editor
Hacettepe Journal of Mathematics and Statistics
Hacettepe Journal of Mathematics and Statistics
Section Editor
Editorial Board Memberships
Gazi University Journal of Science
Gazi University Journal of Science
Gazi Üniversitesi Fen Fakültesi Dergisi
Gazi Üniversitesi Fen Fakültesi Dergisi
Journal of Statistics and Applied Sciences
Journal of Statistics and Applied Sciences

Reviews

Ankara Hacı Bayram Veli University Journal of the Faculty of Economics and Administrative Sciences
Ankara Hacı Bayram Veli University Journal of the Faculty of Economics and Administrative Sciences
Duzce University Journal of Science and Technology
Duzce University Journal of Science and Technology
Erciyes University Journal of Faculty of Economics and Administrative Sciences
Erciyes University Journal of Faculty of Economics and Administrative Sciences
Eskişehir Technical University Journal of Science and Technology A - Applied Sciences and Engineering
Eskişehir Technical University Journal of Science and Technology A - Applied Sciences and Engineering
Gazi University Journal of Science
Gazi University Journal of Science
Gazi University Journal of Science Part C: Design and Technology
Gazi University Journal of Science Part C: Design and Technology
Gazi Üniversitesi Fen Fakültesi Dergisi
Gazi Üniversitesi Fen Fakültesi Dergisi
Gazi Üniversitesi Mühendislik Mimarlık Fakültesi Dergisi
Gazi Üniversitesi Mühendislik Mimarlık Fakültesi Dergisi
Hacettepe Journal of Mathematics and Statistics
Hacettepe Journal of Mathematics and Statistics
Journal of Polytechnic
Journal of Polytechnic
Journal of Productivity
Journal of Productivity
Journal of Turkish Operations Management
Journal of Turkish Operations Management
Selcuk Journal of Science
Selcuk Journal of Science
TÜBA Higher Education Research/Review
TÜBA Higher Education Research/Review

Publications

Türkiye'deki üniversitelerin performans değerlendirmesi: İkili kümeleme analizi ve en etkili VZA modeline dayalı bir yaklaşım
Authors: Ahmet Kocatürk , Emre Koçak , Hacı Hasan Örkcü
Published: 2026 , Gazi Üniversitesi Mühendislik Mimarlık Fakültesi Dergisi
DOI: 10.17341/gazimmfd.1650429
CITED 1 FAVORITE 0 TOTAL DOWNLOAD COUNT 504

1

0

504

Energy Modeling of Türkiye Road and Rail Transport Towards Net Zero Emissions Target (2025-2050)
Authors: Onur Dönmezçelik , Emre Koçak , H. Hasan Örkcü
Published: 2024 , Journal of Polytechnic
DOI: 10.2339/politeknik.1212520
CITED 7 FAVORITE 0 TOTAL DOWNLOAD COUNT 3381

7

0

3381

Particle swarm optimization based feature selection using factorial design
Authors: Emre Koçak , H. Hasan Örkcü
Published: 2024 , Hacettepe Journal of Mathematics and Statistics
DOI: 10.15672/hujms.1346686
CITED 1 FAVORITE 0 TOTAL DOWNLOAD COUNT 1513

1

0

1513

Analysis of the Performance of METU Technoparks Firms with Data Envelopment Analysis
Authors: H. Hasan Örkcü , Özge Sevim
Published: 2023 , Journal of Polytechnic
DOI: 10.2339/politeknik.685005
CITED 1 FAVORITE 0 TOTAL DOWNLOAD COUNT 1978

1

0

1978

Influence of Finishing Procedures on Surface Roughness and Biaxial Flexural Strength of High-translucent 4Y-PSZ, 5Y-PSZ, and 6Y-PSZ Monolithic Zirconia
Authors: Gülsüm Doğru , Elif Demiralp , Emre Koçak , H. Hasan Örkcü , Prof. Dr. Cemal Aydın , Handan Yılmaz
Published: 2023 , Clinical and Experimental Health Sciences
DOI: 10.33808/clinexphealthsci.1073010
CITED 1 FAVORITE 0 TOTAL DOWNLOAD COUNT 1834

1

0

1834

Measuring the Efficiency of Turkish State Universities Based on a Two-Stage DEA Model
Authors: Emre Koçak , H. Hasan Örkcü
Published: 2021 , Gazi University Journal of Science
DOI: 10.35378/gujs.801115
CITED 4 FAVORITE 0 TOTAL DOWNLOAD COUNT 1065

4

0

1065

Çok gruplu sınıflandırma problemlerine regresyon analizi ve matematiksel programlama tabanlı yeni bir yaklaşım
Authors: Mustafa İsa Doğan , Abdullah Orman , Mediha Örkcü , H. Hasan Örkcü
Published: 2019 , Gazi Üniversitesi Mühendislik Mimarlık Fakültesi Dergisi
DOI: 10.17341/gazimmfd.571643
CITED 1 FAVORITE 0 TOTAL DOWNLOAD COUNT 1872

1

0

1872

CLUSTERING OF CRIMINALS ACCORDING TO THE TYPES OF MATERIAL CAUGHT IN SMUGGLING: BICLUSTERING METHOD
Authors: Ramazan Arslan , Hacı Hasan Örkcü , Bülent Altunkaynak
Published: 2018 , International Journal of Economics and Administrative Studies
DOI: 10.18092/ulikidince.348119
CITED 2 FAVORITE 0 TOTAL DOWNLOAD COUNT 4001

2

0

4001

Veri Zarflama Analizi Tabanlı Yeni Bir Hibrid İki Gruplu Sınıflandırma Modeli
Authors: H. Hasan Örkcü , Mustafa İsa Doğan
Published: 2015 , Süleyman Demirel University Journal of Natural and Applied Sciences
DOI: -
CITED 1 FAVORITE 0 TOTAL DOWNLOAD COUNT 1585

1

0

1585

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