SZU-AFS Antispoofing System for the ASVspoof 5 Challenge
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Abstract (arXiv)
This paper presents the SZU-AFS anti-spoofing system, designed for Track 1 of the ASVspoof 5 Challenge under open conditions. The system is built with four stages: selecting a baseline model, exploring effective data augmentation (DA) methods for fine-tuning, applying a co-enhancement strategy based on gradient norm aware minimization (GAM) for secondary fine-tuning, and fusing logits scores from the two best-performing fine-tuned models. The system utilizes the Wav2Vec2 front-end feature extractor and the AASIST back-end classifier as the baseline model. During model fine-tuning, three distinct DA policies have been investigated: single-DA, random-DA, and cascade-DA. Moreover, the employed GAM-based co-enhancement strategy, designed to fine-tune the augmented model at both data and optimizer levels, helps the Adam optimizer find flatter minima, thereby boosting model generalization. Overall, the final fusion system achieves a minDCF of 0.115 and an EER of 4.04% on the evaluation set.
Key facts. Cited by 4 papers in the map (data through 7 Oct 2026). Builds on 25 of its 35 references that are in the map. First posted on arXiv 19 Aug 2024.
Builds on
25 of 35 references.
References · 25
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13 more
- 2024ASVspoof 5: Crowdsourced Speech Data, Deepfakes, and Adversarial Attacks at Scalecited by 88
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Citing papers per year: 2026: 4.
4 papers.
- 2026Evolutionary Multi-Objective Fusion of Deepfake Speech Detectorscited by 3
- 2026RAT: Reference-Augmented Training for ASV Anti-Spoofingcited by 0
- 2026What Do Deepfake Speech Detectors Actually Hear?cited by 0
- 2026Supervised Post-training of Speech Foundation Models for Robust Adaptation in Speech Deepfake Detectioncited by 0
- 2026Supervised Post-training of Speech Foundation Models for Robust Adaptation in Speech Deepfake Detection24 Jun 2026
- 2026What Do Deepfake Speech Detectors Actually Hear?9 Jun 2026
- 2026RAT: Reference-Augmented Training for ASV Anti-Spoofing9 Jun 2026
- 2026Evolutionary Multi-Objective Fusion of Deepfake Speech Detectors1 Apr 2026