Sultan Zavrak

Department of Computer Engineering

Faculty of Engineering

Duzce University, Duzce, Turkey

I am an Assistant Professor in the Department of Computer Engineering at Duzce University. I received my Ph.D. in Computer and Information Engineering from Sakarya University in 2020, and my B.Sc. and M.Sc. degrees in Computer Engineering from Karadeniz Technical University in 2010 and 2013, respectively.

My research focuses on computer networks, network security, and machine learning. I am particularly interested in anomaly-based intrusion detection, software-defined networks, and applying deep learning methods to cybersecurity challenges such as flow-based attack detection and spam filtering.

selected publications

IEEE Access

Anomaly-Based Intrusion Detection From Network Flow Features Using Variational Autoencoder

S. Zavrak and M. İskefiyeli

IEEE Access, 2020

DOI Bib HTML

@article{zavrak2020anomaly,
  title = {Anomaly-Based Intrusion Detection From Network Flow Features Using Variational Autoencoder},
  author = {Zavrak, S. and {\.I}skefiyeli, M.},
  journal = {IEEE Access},
  volume = {8},
  pages = {108346--108358},
  year = {2020},
  publisher = {IEEE},
  doi = {10.1109/ACCESS.2020.3001350},
}

NCA

Flow-based intrusion detection on software-defined networks: a multivariate time series anomaly detection approach

S. Zavrak and M. Iskefiyeli

Neural Computing and Applications, 2023

DOI Bib HTML

@article{zavrak2023flow,
  title = {Flow-based intrusion detection on software-defined networks: a multivariate time series anomaly detection approach},
  author = {Zavrak, S. and Iskefiyeli, M.},
  journal = {Neural Computing and Applications},
  year = {2023},
  publisher = {Springer},
  doi = {10.1007/s00521-023-08376-5},
}

ESWA

Email spam detection using hierarchical attention hybrid deep learning method

S. Zavrak and S. Yilmaz

Expert Systems with Applications, 2023

DOI arXiv Bib HTML

@article{zavrak2023email,
  title = {Email spam detection using hierarchical attention hybrid deep learning method},
  author = {Zavrak, S. and Yilmaz, S.},
  journal = {Expert Systems with Applications},
  volume = {233},
  pages = {120977},
  year = {2023},
  publisher = {Elsevier},
  doi = {10.1016/J.ESWA.2023.120977},
}