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A great deal of recent research effort on speech spoofing countermeasures has been invested into back-end neural networks and training criteria. We contribute to this effort with a comparative perspective in this study. Our comparison of…

Audio and Speech Processing · Electrical Eng. & Systems 2021-06-15 Xin Wang , Junich Yamagishi

End-to-end approaches to anti-spoofing, especially those which operate directly upon the raw signal, are starting to be competitive with their more traditional counterparts. Until recently, all such approaches consider only the learning of…

Audio and Speech Processing · Electrical Eng. & Systems 2021-10-07 Wanying Ge , Jose Patino , Massimiliano Todisco , Nicholas Evans

Progress in computer-aided synthesis planning (CASP) is obscured by the lack of standardized evaluation infrastructure and the reliance on metrics that prioritize topological completion over chemical validity. We introduce RetroCast, a…

Machine Learning · Computer Science 2025-12-09 Anton Morgunov , Victor S. Batista

The increasing virtualization of fifth generation (5G) networks expands the attack surface of the user plane, making spoofing a persistent threat to slice integrity and service reliability. This study presents a slice-aware lightweight…

Cryptography and Security · Computer Science 2025-11-14 Daniyal Ganiuly , Nurzhau Bolatbek

As a crucial robotic perception capability, visual tracking has been intensively studied recently. In the real-world scenarios, the onboard processing time of the image streams inevitably leads to a discrepancy between the tracking results…

Computer Vision and Pattern Recognition · Computer Science 2022-11-14 Bowen Li , Yiming Li , Junjie Ye , Changhong Fu , Hang Zhao

Traversability estimation is critical for enabling robots to navigate across diverse terrains and environments. While recent self-supervised learning methods achieve promising results, they often fail to capture the characteristics of…

Robotics · Computer Science 2025-08-26 Zipeng Fang , Yanbo Wang , Lei Zhao , Weidong Chen

This paper introduces SpoofCeleb, a dataset designed for Speech Deepfake Detection (SDD) and Spoofing-robust Automatic Speaker Verification (SASV), utilizing source data from real-world conditions and spoofing attacks generated by…

State-of-the-art spoof detection methods tend to overfit to the spoof types seen during training and fail to generalize to unknown spoof types. Given that face anti-spoofing is inherently a local task, we propose a face anti-spoofing…

Computer Vision and Pattern Recognition · Computer Science 2020-06-17 Debayan Deb , Anil K. Jain

This paper describes the UZH-CL system submitted to the SASV section of the WildSpoof 2026 challenge. The challenge focuses on the integrated defense against generative spoofing attacks by requiring the simultaneous verification of speaker…

Audio and Speech Processing · Electrical Eng. & Systems 2026-01-27 Aref Farhadipour , Ming Jin , Valeriia Vyshnevetska , Xiyang Li , Elisa Pellegrino , Srikanth Madikeri

Concept drift is the phenomenon in which the underlying data distributions and statistical properties of a target domain change over time, leading to a degradation in model performance. Consequently, production models require continuous…

Machine Learning · Computer Science 2025-08-07 Salvatore Greco , Bartolomeo Vacchetti , Daniele Apiletti , Tania Cerquitelli

Prior studies show that the key to face anti-spoofing lies in the subtle image pattern, termed "spoof trace", e.g., color distortion, 3D mask edge, Moire pattern, and many others. Designing a generic anti-spoofing model to estimate those…

Computer Vision and Pattern Recognition · Computer Science 2020-07-21 Yaojie Liu , Joel Stehouwer , Xiaoming Liu

Spoofing-robust speaker verification (SASV) combines the tasks of speaker and spoof detection to authenticate speakers under adversarial settings. Many SASV systems rely on fusion of speaker and spoof cues at embedding, score or decision…

Audio and Speech Processing · Electrical Eng. & Systems 2026-03-31 Oğuzhan Kurnaz , Jagabandhu Mishra , Tomi H. Kinnunen , Cemal Hanilçi

It is well known that speaker verification systems are subject to spoofing attacks. The Automatic Speaker Verification Spoofing and Countermeasures Challenge -- ASVSpoof2015 -- provides a standard spoofing database, containing attacks based…

Albeit recent progress in speaker verification generates powerful models, malicious attacks in the form of spoofed speech, are generally not coped with. Recent results in ASVSpoof2015 and BTAS2016 challenges indicate that spoof-aware…

Audio and Speech Processing · Electrical Eng. & Systems 2020-07-28 Heinrich Dinkel , Nanxin Chen , Yanmin Qian , Kai Yu

Continuous monitoring of trained ML models to determine when their predictions should and should not be trusted is essential for their safe deployment. Such a framework ought to be high-performing, explainable, post-hoc and actionable. We…

Machine Learning · Computer Science 2023-07-14 Nandita Bhaskhar , Daniel L. Rubin , Christopher Lee-Messer

Recently, several global navigation satellite systems (GNSS) emerged following the transformative technology impact of the first GNSS: US Global Positioning System (GPS). The power level of GNSS signals as measured at the earths surface is…

Signal Processing · Electrical Eng. & Systems 2024-12-20 Erick Schmidt , Zach A. Ruble , David Akopian , Daniel J. Pack

Recently autonomous and semi-autonomous Unmanned Aerial Vehicle (UAV) swarms started to receive a lot of research interest and demand from various civil application fields. However, for successful mission execution, UAV swarms require…

Cryptography and Security · Computer Science 2025-12-03 Pavlo Mykytyn , Marcin Brzozowski , Zoya Dyka , Peter Langendoerfer

This study investigates the explainability of embedding representations, specifically those used in modern audio spoofing detection systems based on deep neural networks, known as spoof embeddings. Building on established work in speaker…

Sound · Computer Science 2024-12-25 Xuechen Liu , Junichi Yamagishi , Md Sahidullah , Tomi kinnunen

We introduce the Sparsity Roofline, a visual performance model for evaluating sparsity in neural networks. The Sparsity Roofline jointly models network accuracy, sparsity, and theoretical inference speedup. Our approach does not require…

Computer Vision and Pattern Recognition · Computer Science 2023-11-08 Cameron Shinn , Collin McCarthy , Saurav Muralidharan , Muhammad Osama , John D. Owens

Artefacts that serve to distinguish bona fide speech from spoofed or deepfake speech are known to reside in specific subbands and temporal segments. Various approaches can be used to capture and model such artefacts, however, none works…

Audio and Speech Processing · Electrical Eng. & Systems 2021-08-24 Hemlata Tak , Jee-weon Jung , Jose Patino , Madhu Kamble , Massimiliano Todisco , Nicholas Evans