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Heyfa Ammar
Affiliation : Tunis University · National Engineering School of Tunis · Tunis El Manar University
- 20Publications (affiliation in Tunisia)
- 25Total publications
- 371Citations
- 7h-index
Research profile
Heyfa Ammar has 20 indexed publications (2009–2025). Their work appears mainly in “Machine Vision and Applications”, “Journal of King Saud University - Computer and Information Sciences” and “IoT”. Their most cited article, “Credit card fraud detection in the era of disruptive technologies: A systematic review” (2022), has been cited 202 times. 3 of these publications date from the last three years of activity. Their work is co-authored with at least 3 researchers, including institutions in Saudi Arabia.
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Create my free profile Add my publicationsResearch areas
- Advanced Image Processing Techniques
- Image and Signal Denoising Methods
- Video Surveillance and Tracking Methods
- Image and Video Quality Assessment
- Anomaly Detection Techniques and Applications
Publications (20)
- Optimizing IoMT Security: Performance Trade-Offs Between Neural Network Architectural Design, Dimensionality Reduction, and Class Imbalance Handling
- Encoder–decoder graph neural network for credit card fraud detection
- DivGAN: A diversity enforcing generative adversarial network for mode collapse reduction
- Credit card fraud detection in the era of disruptive technologies: A systematic review
- DeepROD: a deep learning approach for real-time and online detection of a panic behavior in human crowds
- Real-time frequency-based detection of a panic behavior in human crowds
- Review on Real-time Detection of a Panic Behavior in Crowded Scenes
- Quantitative Analysis of Healthy and Pathological Vocal Fold Vibrations using an Optical Flow based Waveform
- Automatic blotch removal using a perceptual approach
- Statistical detection of a panic behavior in crowded scenes
- Optical flow based waveform for the assessment of the vocal fold vibrations
- A motion-based waveform for the detection of breathing difficulties during sleep
- Obstructive sleep apnea diagnosis based on a statistical analysis of the optical flow in video recordings
- Statistical glottal segmentation of videoendoscopic images using geodesic active contours
- Hierarchical preprocessing for improving the blotch detection performances
- Motion compensation under varying illumination for wavelet-based blotch detection in old movies
- Wavelet-based blotch detection in old movies exploiting interscale dependency
- Wavelet-based blotch restoration exploiting interscale dependency
- Impact of the motion compensation step in wavelet-based blotch detection in old movies
- A novel spatio-temporal method for blotch detection in the wavelet transform domain
Publication venues
- Machine Vision and Applications × 3
- Journal of King Saud University - Computer and Information Sciences × 2
- IoT × 1
- Artificial Intelligence × 1
- Multimedia Tools and Applications × 1
- International Conference on Computer Applications & Information Security (ICCAIS) × 1
Publications per year
- 20251
- 20241
- 20231
- 20221
- 20211
- 20201
- 20193
- 20183
- 20161
- 20141
Collaborations
Partner institutions : King Abdulaziz University · University of Carthage · École Supérieure des Communications de Tunis · Université Tunis Carthage
Co-authors’ countries : Saudi Arabia
Co-authors
Bibliographic data from OpenAlex (open database).
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