Vangelis Metsis

Comal Bldg, Room 307F

601 University Drive

San Marcos, TX 78666

Phone: 512-245-7509

Dr. Vangelis Metsis is an Associate Professor in the Department of Computer Science at Texas State University and the Director of the Intelligent Multimodal Computing and Sensing (IMICS) Lab. He joined the department in August 2014.

Dr. Metsis earned his Ph.D. in Computer Science from the University of Texas at Arlington (UTA) in 2011, focusing on human-centered multimodal data analysis. He holds a B.S. with honors in Computer Science from the Department of Informatics at the Athens University of Economics and Business (AUEB) in Greece.

Dr. Metsis' interests span the areas of Machine Learning and Deep Learning with a focus on human-centric AI applications in Healthcare, Pervasive Computing, Affective Computing, and VR/AR-based Therapy. His work addresses challenges in time-series analysis and multimodal biosignal processing, including novel generative AI methods for data augmentation, robust deep learning architectures for temporal data, and intelligent IoT environments that monitor, assist, and rehabilitate users.

He has secured over $2 million in research funding as Principal Investigator and Co-Principal Investigator, with grants from the NSF, U.S. Department of Education, and industry partners. Dr. Metsis has published extensively in peer-reviewed journals and conferences, with over 80 publications to his name.

Recognized for his dedication to teaching and mentoring, Dr. Metsis received the Presidential Award in Teaching from Texas State University in 2022, along with multiple College of Science and Engineering Excellence in Teaching Awards and the Alpha Chi Favorite Professor honor. He has advised multiple Ph.D. and Master's students, as well as numerous undergraduate researchers. His teaching spans a wide range of computer science courses, from introductory programming to advanced topics in machine learning and computer vision.

selected publications

DSP

Geometric Knowledge Distillation via Procrustes Analysis for Efficient Motion Sequence Classification

Bikram De, Kostas Blekos, Vasilis Pikoulis, Dimitrios Kosmopoulos, and Vangelis Metsis

In 2025 25th International Conference on Digital Signal Processing (DSP), 2025

DOI Bib PDF Code

@inproceedings{de2025geometric,
  title = {Geometric Knowledge Distillation via Procrustes Analysis for Efficient Motion Sequence Classification},
  author = {De, Bikram and Blekos, Kostas and Pikoulis, Vasilis and Kosmopoulos, Dimitrios and Metsis, Vangelis},
  booktitle = {2025 25th International Conference on Digital Signal Processing (DSP)},
  pages = {1--5},
  year = {2025},
  organization = {IEEE},
  doi = {10.1109/DSP65409.2025.11074953},
}

Bioengineering

Biodiffusion: A versatile diffusion model for biomedical signal synthesis

Xiaomin Li, Mykhailo Sakevych, Gentry Atkinson, and Vangelis Metsis

Bioengineering, 2024

DOI Bib PDF Code

@article{li2024biodiffusion,
  title = {Biodiffusion: A versatile diffusion model for biomedical signal synthesis},
  author = {Li, Xiaomin and Sakevych, Mykhailo and Atkinson, Gentry and Metsis, Vangelis},
  journal = {Bioengineering},
  volume = {11},
  number = {4},
  pages = {299},
  year = {2024},
  publisher = {MDPI},
  doi = {10.3390/bioengineering11040299},
}

AIME

Recurrence and Self-attention vs the Transformer for Time-Series Classification: A Comparative Study

Alexander Katrompas, Theodoros Ntakouris, and Vangelis Metsis

In 20th International Conference on Artificial Intelligence in Medicine, 2022

DOI Bib PDF Code

@inproceedings{katrompas2022recurrence,
  title = {Recurrence and Self-attention vs the Transformer for Time-Series Classification: A Comparative Study},
  author = {Katrompas, Alexander and Ntakouris, Theodoros and Metsis, Vangelis},
  booktitle = {20th International Conference on Artificial Intelligence in Medicine},
  pages = {99--109},
  year = {2022},
  organization = {Springer},
  doi = {10.1007/978-3-031-09342-5_10},
}

AIME

TTS-GAN: A Transformer-Based Time-Series Generative Adversarial Network

Xiaomin Li, Vangelis Metsis, Huangyingrui Wang, and Anne Hee Hiong Ngu

In 20th International Conference on Artificial Intelligence in Medicine, 2022

DOI Bib PDF Code

@inproceedings{li2022ttsgan,
  author = {Li, Xiaomin and Metsis, Vangelis and Wang, Huangyingrui and Ngu, Anne Hee Hiong},
  title = {TTS-GAN: A Transformer-Based Time-Series Generative Adversarial Network},
  booktitle = {20th International Conference on Artificial Intelligence in Medicine},
  year = {2022},
  publisher = {Springer International Publishing},
  doi = {10.1007/978-3-031-09342-5_13},
}

PETRA

Classification of emotional arousal during multimedia exposure

Adam Anderson, Thomas Hsiao, and Vangelis Metsis

In Proceedings of the 10th International Conference on PErvasive Technologies Related to Assistive Environments, 2017

DOI Bib PDF

@inproceedings{anderson2017classification,
  title = {Classification of emotional arousal during multimedia exposure},
  author = {Anderson, Adam and Hsiao, Thomas and Metsis, Vangelis},
  booktitle = {Proceedings of the 10th International Conference on PErvasive Technologies Related to Assistive Environments},
  pages = {181--184},
  year = {2017},
  doi = {10.1145/3056540.3064956},
}

IEEE Internet Things J.

IoT middleware: A survey on issues and enabling technologies

Anne H Ngu, Mario Gutierrez, Vangelis Metsis, Surya Nepal, and Quan Z Sheng

IEEE Internet of Things Journal, 2016

DOI Bib PDF

@article{ngu2016iot,
  title = {IoT middleware: A survey on issues and enabling technologies},
  author = {Ngu, Anne H and Gutierrez, Mario and Metsis, Vangelis and Nepal, Surya and Sheng, Quan Z},
  journal = {IEEE Internet of Things Journal},
  volume = {4},
  number = {1},
  pages = {1--20},
  year = {2016},
  publisher = {IEEE},
  doi = {10.1109/JIOT.2016.2615180},
}

IEEE/ACM TCBB

DNA copy number selection using robust structured sparsity-inducing norms

Vangelis Metsis, Fillia Makedon, Dinggang Shen, and Heng Huang

IEEE/ACM transactions on computational biology and bioinformatics, 2013

DOI Bib PDF

@article{metsis2013dna,
  title = {DNA copy number selection using robust structured sparsity-inducing norms},
  author = {Metsis, Vangelis and Makedon, Fillia and Shen, Dinggang and Huang, Heng},
  journal = {IEEE/ACM transactions on computational biology and bioinformatics},
  volume = {11},
  number = {1},
  pages = {168--181},
  year = {2013},
  publisher = {IEEE},
  doi = {10.1109/tcbb.2013.141}
}

Pers. Ubiquitous Comput.

Non-invasive analysis of sleep patterns via multimodal sensor input

Vangelis Metsis, Dimitrios Kosmopoulos, Vassilis Athitsos, and Fillia Makedon

Personal and Ubiquitous Computing, 2014

DOI Bib PDF

@article{metsis2014non,
  title = {Non-invasive analysis of sleep patterns via multimodal sensor input},
  author = {Metsis, Vangelis and Kosmopoulos, Dimitrios and Athitsos, Vassilis and Makedon, Fillia},
  journal = {Personal and Ubiquitous Computing},
  volume = {18},
  number = {1},
  pages = {19--26},
  year = {2014},
  publisher = {Springer London},
  doi = {10.1007/s00779-012-0623-1}
}

Telemat. Inform.

Digital cities of the future: Extending@ home assistive technologies for the elderly and the disabled

Charalampos Doukas, Vangelis Metsis, Eric Becker, Zhengyi Le, Fillia Makedon, and Ilias Maglogiannis

Telematics and Informatics, 2011

DOI Bib PDF

@article{doukas2011digital,
  title = {Digital cities of the future: Extending@ home assistive technologies for the elderly and the disabled},
  author = {Doukas, Charalampos and Metsis, Vangelis and Becker, Eric and Le, Zhengyi and Makedon, Fillia and Maglogiannis, Ilias},
  journal = {Telematics and Informatics},
  volume = {28},
  number = {3},
  pages = {176--190},
  year = {2011},
  publisher = {Pergamon},
  doi = {10.1016/j.tele.2010.08.001},
}

CEAS

Spam filtering with naive bayes-which naive bayes?

Vangelis Metsis, Ion Androutsopoulos, and Georgios Paliouras

In Third Conference on Email and Anti-Spam (CEAS), 2006

Bib PDF

@inproceedings{metsis2006spam,
  title = {Spam filtering with naive bayes-which naive bayes?},
  author = {Metsis, Vangelis and Androutsopoulos, Ion and Paliouras, Georgios},
  booktitle = {Third Conference on Email and Anti-Spam (CEAS)},
  volume = {17},
  pages = {28--69},
  year = {2006},
}