dr. B. Hunyadi

Guest Associate Professor
Signal Processing Systems (SPS), Department of Microelectronics

Expertise: Biomedical signal processing, Tensor decompositions

Themes: Health and Wellbeing

Biography

Borbála (Bori) Hunyadi is an Associate Professor at Maastricht University, and a guest Associate Professor at SPS. She was born in Budapest, Hungary. She received a MSc degree in electrical and computer engineering from the Pazmany Peter Catholic University in 2009 and a PhD in electrical engineering from the Department of Electrical Engineering at KU Leuven in 2014, where she continued to work as a postdoctoral researcher. 

In 2018 she was awarded one of the “Delft Technology Fellowships” for outstanding female academic researchers. In October 2018 she joined the Circuits and Systems (now Signal Processing Systems) group at TU Delft as an assistant professor. She is the co-director of the Delft Tensor AI Lab (DeTAIL). In 2024 she has received a prestigious NWO Vidi grant for her project "NeuroMark".

Her research interests include biomedical signal processing and machine learning for biomedical pattern recognition. More specifically, she is interested in multichannel and multimodal signal processing and fusion, blind source separation, tensor decompositions and wearable signal processing to better understand healthy and pathological physiology, in particular in neuroscience applications.

She was the secretary of the IEEE EMBC Benelux chapter between 2019-2024. Currently she serves the chair of the EURASIP technical area committee on biomedical signal and image processing. She is associate editor for the IEEE Signal Processing Magazine (Columns and Forum) and Frontiers in Neuroscience (Brain Imaging Methods).

EE4750 Tensor networks for green AI and signal processing

Introduction to multilinear algebra, tensor decompositions, and their applications for green AI and biomedical signal processing

Education history

EE2S31 Signal processing

(not running) Digital signal processing; stochastic processes

Delft Tensor AI Lab

Tensor-based AI methods for biomedical signals

Projects history

Prostate cancer detection using ultrasound

Tensor techniques to improve the analysis of (3D+time) ultrasound images

Multimodal, multiresolution brain imaging

Developing a novel brain imaging paradigm combining functional ultrasound and EEG

Medical Delta Cardiac Arrhythmia Lab

Part of a larger program (with Erasmus MC) to unravel and target electropathology related to atrial arrhythmia

  1. Core consistency diagnostic for the block term decomposition
    S.E. Kotti; B. Hunyadi;
    2026. Preprint version of a manuscript submitted to IEEE Transactions on Signal Processing. This work has been submitted to the IEEE for possible publication. Copyright may be transferred without notice, after which this version may no longer be accessible..
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  2. Speckle Denoising of Dynamic Contrast- Enhanced Ultrasound Using Low-Rank Tensor Decomposition
    M. Calis; M. Mischi; A.J. van der Veen; B. Hunyadi;
    IEEE Transactions on Medical Imaging,
    Volume 44, Issue 7, pp. 2854-2867, 2025. DOI: 10.1109/TMI.2025.3551660
    document

  3. Special Issue on Accelerating Brain Discovery Through Data Science and Neurotechnology: Part 1 [From the Guest Editors]
    Vince D. Calhoun; Damien Coyle; Javier Escudero; Borbála Hunyadi; Jing Sui;
    IEEE Signal Process. Mag.,
    Volume 42, Issue 4, pp. 5-7, 2025. DOI: 10.1109/MSP.2025.3613224
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  4. Brain Connectivity: From network science to tensor models
    Borbála Hunyadi; Selin Aviyente;
    IEEE Signal Process. Mag.,
    Volume 42, Issue 4, pp. 8-24, 2025. DOI: 10.1109/MSP.2025.3600011
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  5. Editorial for Special Issue on Accelerating Brain Discovery Through Data Science and Neurotechnology: Part 2 [From the Guest Editors]
    Vince D. Calhoun; Damien Coyle; Javier Escudero; Borbála Hunyadi; Jing Sui;
    IEEE Signal Process. Mag.,
    Volume 42, Issue 5, pp. 5-7, 2025. DOI: 10.1109/MSP.2025.3619327
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  6. Adapting Tensor Kernel Machines to Enable Efficient Transfer Learning for Seizure Detection
    Seline J. S. de Rooij; Borbála Hunyadi;
    CoRR,
    Volume abs/2512.02626, 2025. DOI: 10.48550/arXiv.2512.02626
    document

  7. Scalable Higher-Order Topology Identification from Nodal Observations
    Ruben Wijnands; Andrea Cavallo; Borbála Hunyadi; Elvin Isufi; Geert Leus;
    In 2025 IEEE 10th International Workshop on Computational Advances in Multi-Sensor Adaptive Processing (CAMSAP),
    pp. 101-105, 2025. DOI: 10.1109/CAMSAP66162.2025.11423970
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  8. A Singular-value-based Map to Highlight Abnormal Regions Associated with Atrial Fibrillation Using High-resolution Electrograms and Multi-lead ECG
    H. Moghaddasi; R.C. Hendriks; B. Hunyadi; P. Knops; M.S. van Schie; N.M.S. de Groot; A.J. van der Veen;
    IEEE Trans. Biomedical Eng.,
    2024. DOI: 10.1109/TBME.2024.3420412
    document

  9. Tensor Completion for Alzheimer's Disease Prediction From Diffusion Tensor Imaging
    Yixin Gou; Yipeng Liu; Fei He; Borbála Hunyadi; Ce Zhu;
    IEEE Trans. Biomed. Eng.,
    Volume 71, Issue 7, pp. 2211-2223, 2024. DOI: 10.1109/TBME.2024.3365131
    document

  10. Evoked Component Analysis (ECA): Decomposing the Functional Ultrasound Signal With GLM-Regularization
    Aybüke Erol; Bastian Generowicz; Pieter Kruizinga; Borbála Hunyadi;
    IEEE Trans. Biomed. Eng.,
    Volume 71, Issue 10, pp. 2823-2832, 2024. DOI: 10.1109/TBME.2024.3395154
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  11. Efficient Patient Fine-Tuned Seizure Detection with a Tensor Kernel Machine
    Seline J. S. de Rooij; Frederiek Wesel; Borbála Hunyadi;
    CoRR,
    Volume abs/2408.00437, 2024. DOI: 10.48550/arXiv.2408.00437
    document

  12. Tensor Decomposition-Based Data Fusion for Biomarker Extraction from Multiple EEG Experiments
    Kenneth Stunnenberg; Richard C. Hendriks; Jantien L. Vroegop; Marloes L. Adank; Borbála Hunyadi;
    In International Conference on Acoustics, Speech, and Signal Processing (ICASSP),
    pp. 13146-13150, 2024. DOI: 10.1109/ICASSP48485.2024.10448073
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  13. Extracting Hemodynamic Activity with Low-Rank Spatial Signatures in Functional Ultrasound Using Tensor Decompositions
    S.E. Kotti; B. Hunyadi;
    In 2024 32nd European Signal Processing Conference (EUSIPCO),
    Lyon (France), EURASIP, pp. 1347-1351, August 2024. DOI: 10.23919/EUSIPCO63174.2024.10714979
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  14. Denoising of the Speckle Noise by Robust Low-rank Tensor Decomposition
    M. Calis; B. Hunyadi;
    In 32nd European Signal Processing Conference (EUSIPCO),
    pp. 1157-1161, September 2024. DOI: 10.23919/EUSIPCO63174.2024.10715120
    document

  15. Blind Identification of Overlapping Communities from Nodal Observations
    Ruben Wijnands; Geert Leus; Borbála Hunyadi;
    In 2024 32nd European Signal Processing Conference (EUSIPCO),
    pp. 812-816, 2024.
    document

  16. Efficient Patient Fine-Tuned Seizure Detection with a Tensor Kernel Machine
    Seline J. S. de Rooij; Frederiek Wesel; Borbála Hunyadi;
    In 2024 32nd European Signal Processing Conference (EUSIPCO),
    pp. 1372-1376, 2024.
    document

  17. Analyzing Trial-to-Trial Variability in the Mouse Visual Pathway Using Functional Ultrasound
    Aybüke Erol; Pieter Kruizinga; Borbála Hunyadi;
    In ISBI,
    pp. 1-5, 2024. DOI: 10.1109/ISBI56570.2024.10635718
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  18. Deconvolution of the Functional Ultrasound Response in the Mouse Visual Pathway Using Block-Term Decomposition
    Aybüke Erol; Chagajeg Soloukey; Bastian Generowicz; Nikki van Dorp; Sebastiaan K. E. Koekkoek; Pieter Kruizinga; Borbála Hunyadi;
    Neuroinformatics,
    Volume 21, Issue 2, pp. 247-265, 2023. DOI: 10.1007/s12021-022-09613-3
    document

  19. Correction to: Deconvolution of the Functional Ultrasound Response in the Mouse Visual Pathway Using Block-Term Decomposition
    Aybüke Erol; Chagajeg Soloukey; Bastian Generowicz; Nikki van Dorp; Sebastiaan K. E. Koekkoek; Pieter Kruizinga; Borbála Hunyadi;
    Neuroinformatics,
    Volume 21, Issue 2, pp. 267, 2023. DOI: 10.1007/s12021-022-09619-x
    document

  20. Modeling nonlinear evoked hemodynamic responses in functional ultrasound
    S. Kotti; A. Erol; B. Hunyadi;
    In 2023 IEEE International Conference on Acoustics, Speech, and Signal Processing Workshops (ICASSPW),
    Rhodes Island (Greece), IEEE, pp. 1-5, June 2023. DOI: 10.1109/ICASSPW59220.2023.10193541
    document

  21. Deriving 3D Functional Brain Regions from Multi-Slice Functional Ultrasound Data Using ICA and IVA
    Isabell Lehmann; Tülay Adali; Pieter Kruizinga; Borbála Hunyadi;
    In ACSSC,
    pp. 1484-1490, 2023. DOI: 10.1109/IEEECONF59524.2023.10477081
    document

  22. GLM-Regularized Low-Rank Factorization For Extracting Functional Response From Swept-3D Functional Ultrasound
    Aybüke Erol; Bastian Generowicz; Pieter Kruizinga; Borbála Hunyadi;
    In ICASSP Workshops,
    pp. 1-5, 2023. DOI: 10.1109/ICASSPW59220.2023.10193574
    document

  23. Enabling Large-Scale Probabilistic Seizure Detection with a Tensor-Network Kalman Filter for LS-SVM
    Seline J. S. de Rooij; Kim Batselier; Borbála Hunyadi;
    In ICASSP Workshops,
    pp. 1-5, 2023. DOI: 10.1109/ICASSPW59220.2023.10193615
    document

  24. Modeling and Inference of Sparse Neural Dynamic Functional Connectivity Networks Underlying Functional Ultrasound Data
    Ruben Wijnands; Justin Dauwels; Ines Serra; Pieter Kruizinga; Aleksandra Badura; Borbála Hunyadi;
    In ICASSP Workshops,
    pp. 1-5, 2023. DOI: 10.1109/ICASSPW59220.2023.10193029
    document

  25. Classification of De Novo Post-Operative and Persistent Atrial Fibrillation Using Multi-Channel ECG Recordings
    Hanie Moghaddasi; Richard C. Hendriks; Alle-Jan van der Veen; Natasja M.S. de Groot; Borbala Hunyadi;
    Computers in Biology and Medicine,
    Volume 143, April 2022. DOI: 10.1016/j.compbiomed.2022.105270
    document

  26. Denoising of Dynamic Contrast-enhanced Ultrasound Sequences: a Multilinear Approach
    M. Calis; M. Mischi; A.-J. van der Veen; B. Hunyadi;
    In Proceedings of the 15th International Joint Conference on Biomedical Engineering Systems and Technologies,
    pp. 192-199, February 2022. DOI: 10.5220/0010838000003123
    document

  27. Surface Electrocardiogram Reconstruction Using Intra-operative Electrograms
    H. Moghaddasi; B. Hunyadi; A.J. van der Veen; N.M.S. de Groot; R.C. Hendriks;
    In 42nd WIC Symposium on Information Theory and Signal Processing in the Benelux (SITB 2022),
    Louvain la Neuve, Belgium, pp. 136, 2022.
    document

  28. Multiparametric ultrasound and machine learning for prostate cancer localization
    P. Chen; M. Calis; H. Wijkstra; P. Huang; B. Hunyadi; M. Mischi;
    In 30th European Signal Processing Conference (EUSIPCO),
    September 2022. DOI: 10.23919/EUSIPCO55093.2022.9909729
    document

  29. Novel rank-based features of atrial potentials for the classification between paroxysmal and persistent atrial fibrillation
    H. Moghaddasi; R.C. Hendriks; A.J. van der Veen; N.M.S. de Groot; B. Hunyadi;
    In 2022 Computing in Cardiology (CinC),
    IEEE, September 2022.
    document

  30. Augmenting interictal mapping with neurovascular coupling biomarkers by structured factorization of epileptic EEG and fMRI data
    Van Eyndhoven, Simon; Dupont, Patrick; Tousseyn, Simon; Vervliet, Nico; Van Paesschen, Wim; Van Huffel, Sabine; Hunyadi, Borbala;
    NeuroImage,
    Volume 228, pp. 117652, 2021. DOI: 10.1016/j.neuroimage.2020.117652

  31. The power of ECG in multimodal patient‐specific seizure monitoring: Added value to an EEG‐based detector using limited channels
    Vandecasteele, Kaat; De Cooman, Thomas; Chatzichristos, Christos; Cleeren, Evy; Swinnen, Lauren; Macea Ortiz, Jaiver; Van Huffel, Sabine; Dumpelmann, Matthias; Schulze-Bonhage, Andreas; De Vos, Maarten; Van Patschen, Wim; Hunyadi, Borbala;
    Epilepsia,
    Volume 62, Issue 10, pp. 2333-2343, October 2021. DOI: https://doi.org/10.1111/epi.16990

  32. Tensors for neuroimaging: A review on applications of tensors to unravel the mysteries of the brain
    Aybuke, Erol; Hunyadi, Borbala;
    In Tensors for Data Processing: Theory, Methods, and Applications,
    Elsevier, October 2021. eBook ISBN 9780323859653.

  33. Personalizing Heart Rate-Based Seizure Detection Using Supervised SVM Transfer Learning
    Thomas De Cooman; Kaat Vandecasteele; Carolina Varon; Borbala Hunyadi; Evy Cleeren; Wim Van Paesschen; Sabine Van Huffel;
    Frontiers in Neurology,
    Volume 11, pp. 145, 2020. DOI: 10.3389/fneur.2020.00145
    document

  34. Visual seizure annotation and automated seizure detection using behind-the-ear electroencephalographic channels
    Vandecasteele, Kaat; De Cooman, Thomas; Dan, Jonathan; Cleeren, Evy; Van Huffel, Sabine; Hunyadi, Borbala; Van Paesschen, Wim;
    Epilepsia,
    Volume 61, Issue 4, pp. 766--775, 2020. DOI: 10.1111/epi.16470
    document

  35. Zebrafish-based screening of antiseizure plants used in Traditional Chinese Medicine: Magnolia officinalis extract and its constituents Magnolol and Honokiol exhibit potent anticonvulsant activity in a therapy-resistant epilepsy model
    Li, Jing; Copmans, Danielle; Partoens, Michele; Hunyadi, Borbala; Luyten, Walter; de Witte, Peter;
    ACS chemical neuroscience,
    Volume 11, Issue 5, pp. 730--742, 2020. DOI: 10.1021/acschemneuro.9b00610
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  36. Tensor-based Detection of Paroxysmal and Persistent Atrial Fibrillation from Multi-channel ECG
    H. Moghaddasi; A.J. van der Veen; N.M.S. de Groot; B. Hunyadi;
    In 29th European Signal Processing Conference (EUSIPCO 2020),
    Amsterdam (Netherlands), EURASIP, pp. 1155-1159, August 2020.
    document

  37. Joint Estimation of Hemodynamic Response and Stimulus Function in Functional Ultrasound Using Convolutive Mixtures
    Aybuke Erol; Simon Van Eyndhoven; Sebastiaan Koekkoek; Pieter Kruizinga; Borbala Hunyadi;
    In 2020 54th Asilomar Conference on Signals, Systems, and Computers,
    IEEE, 2020.

  38. Development of temporal lobe epilepsy during maintenance electroconvulsive therapy: A case of human kindling?
    C. Schotte; E. Cleeren; K. Goffin; B. Hunyadi; S. Buggenhout; K. Van Laere; W. Van Paesschen;
    Epilepsia Open,
    Volume 4, Issue 1, pp. 200-205, 2019. DOI: 10.1002/epi4.12294
    document

  39. Semi-automated EEG enhancement improves localization of ictal onset zone with EEG-correlated fMRI
    S. Van Eyndhoven; B. Hunyadi; P. Dupont; W. Van Paesschen; S. Van Huffel;
    Frontiers in Neurology,
    Volume 10, 2019. DOI: 10.3389/fneur.2019.00805
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  40. Nonconvulsive epileptic seizure monitoring with incremental learning
    Y.R. Rodriguez Aldana; E.J. Maranon Reyes; F. Sanabria Macias; V. Rodriguez Rodriguez; L. Morales Chacon; S. Van Huffel; B. Hunyadi;
    Computers in Biology and Medicine,
    Volume 114, pp. 103434, 2019. ISSN 0010-4825. DOI: 10.1016/j.compbiomed.2019.103434
    Keywords: ... Nonconvulsive epileptic seizures, Hilbert huang transform, Multiway data analysis, Incremental learning.

    Abstract: ... Nonconvulsive epileptic seizures (NCSz) and nonconvulsive status epilepticus (NCSE) are two neurological entities associated with increment in morbidity and mortality in critically ill patients. In a previous work, we introduced a method which accurately detected NCSz in EEG data (referred here as ‘Batch method’). However, this approach was less effective when the EEG features identified at the beginning of the recording changed over time. Such pattern drift is an issue that causes failures of automated seizure detection methods. This paper presents a support vector machine (SVM)-based incremental learning method for NCSz detection that for the first time addresses the seizure evolution in EEG records from patients with epileptic disorders and from ICU having NCSz. To implement the incremental learning SVM, three methodologies are tested. These approaches differ in the way they reduce the set of potentially available support vectors that are used to build the decision function of the classifier. To evaluate the suitability of the three incremental learning approaches proposed here for NCSz detection, first, a comparative study between the three methods is performed. Secondly, the incremental learning approach with the best performance is compared with the Batch method and three other batch methods from the literature. From this comparison, the incremental learning method based on maximum relevance minimum redundancy (MRMR_IL) obtained the best results. MRMR_IL method proved to be an effective tool for NCSz detection in a real-time setting, achieving sensitivity and accuracy values above 99%.

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Last updated: 13 Feb 2026