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Most deepfake detection methods focus on detecting spatial and/or spatio-temporal changes in facial attributes and are centered around the binary classification task of detecting whether a video is real or fake. This is because available…

计算机视觉与模式识别 · 计算机科学 2023-07-18 Zhixi Cai , Shreya Ghosh , Abhinav Dhall , Tom Gedeon , Kalin Stefanov , Munawar Hayat

Majority of the recent approaches for text-independent speaker recognition apply attention or similar techniques for aggregation of frame-level feature descriptors generated by a deep neural network (DNN) front-end. In this paper, we…

声音 · 计算机科学 2019-10-22 Sarthak Yadav , Atul Rai

Due to its high societal impact, deepfake detection is getting active attention in the computer vision community. Most deepfake detection methods rely on identity, facial attributes, and adversarial perturbation-based spatio-temporal…

计算机视觉与模式识别 · 计算机科学 2023-05-25 Zhixi Cai , Kalin Stefanov , Abhinav Dhall , Munawar Hayat

Neural speech editing enables seamless partial edits to speech utterances, allowing modifications to selected content while preserving the rest of the audio unchanged. This useful technique, however, also poses new risks of deepfakes. To…

音频与语音处理 · 电气工程与系统科学 2026-01-27 You Zhang , Baotong Tian , Lin Zhang , Zhiyao Duan

With the proliferation of Audio Language Model (ALM) based deepfake audio, there is an urgent need for generalized detection methods. ALM-based deepfake audio currently exhibits widespread, high deception, and type versatility, posing a…

DeepFake based digital facial forgery is threatening public media security, especially when lip manipulation has been used in talking face generation, and the difficulty of fake video detection is further improved. By only changing lip…

计算机视觉与模式识别 · 计算机科学 2023-07-11 Ganglai Wang , Peng Zhang , Junwen Xiong , Feihan Yang , Wei Huang , Yufei Zha

The proliferation of sophisticated AI-generated deepfakes poses critical challenges for digital media authentication and societal security. While existing detection methods perform well within specific generative domains, they exhibit…

计算机视觉与模式识别 · 计算机科学 2025-05-26 Naseem Khan , Tuan Nguyen , Amine Bermak , Issa Khalil

Recent multimodal deepfake detection methods designed for generalization conjecture that single-stage supervised training struggles to generalize across unseen manipulations and datasets. However, such approaches that target generalization…

计算机视觉与模式识别 · 计算机科学 2025-11-14 Ashutosh Anshul , Shreyas Gopal , Deepu Rajan , Eng Siong Chng

In the retrieval-based multi-turn dialogue modeling, it remains a challenge to select the most appropriate response according to extracting salient features in context utterances. As a conversation goes on, topic shift at discourse-level…

计算与语言 · 计算机科学 2020-12-18 Yi Xu , Hai Zhao , Zhuosheng Zhang

The goal of video anomaly detection is tantamount to performing spatio-temporal localization of abnormal events in the video. The multiscale temporal dependencies, visual-semantic heterogeneity, and the scarcity of labeled data exhibited by…

计算机视觉与模式识别 · 计算机科学 2025-07-29 Dezhi An , Wenqiang Liu , Kefan Wang , Zening Chen , Jun Lu , Shengcai Zhang

Bearing fault detection is a critical task in predictive maintenance, where accurate and timely fault identification can prevent costly downtime and equipment damage. Traditional attention mechanisms in Transformer neural networks often…

机器学习 · 计算机科学 2024-12-17 Marzieh Mirzaeibonehkhater , Mohammad Ali Labbaf-Khaniki , Mohammad Manthouri

With the continuous research on Deepfake forensics, recent studies have attempted to provide the fine-grained localization of forgeries, in addition to the coarse classification at the video-level. However, the detection and localization…

计算机视觉与模式识别 · 计算机科学 2022-10-31 Wu Haiwei , Zhou Jiantao , Zhang Shile , Tian Jinyu

Current researches on Deepfake forensics often treat detection as a classification task or temporal forgery localization problem, which are usually restrictive, time-consuming, and challenging to scale for large datasets. To resolve these…

计算机视觉与模式识别 · 计算机科学 2025-08-05 Wenbo Xu , Junyan Wu , Wei Lu , Xiangyang Luo , Qian Wang

As deepfake audio becomes more realistic and diverse, developing generalizable countermeasure systems has become crucial. Existing detection methods primarily depend on XLS-R front-end features to improve generalization. Nonetheless, their…

声音 · 计算机科学 2026-02-17 Zhe Ye , Xiangui Kang , Jiayi He , Chengxin Chen , Wei Zhu , Kai Wu , Yin Yang , Jiwu Huang

Dynamic Facial Expression Recognition (DFER) plays a critical role in affective computing and human-computer interaction. Although existing methods achieve comparable performance, they inevitably suffer from performance degradation under…

计算机视觉与模式识别 · 计算机科学 2025-07-29 Feng-Qi Cui , Anyang Tong , Jinyang Huang , Jie Zhang , Dan Guo , Zhi Liu , Meng Wang

The rapid development of deep learning and generative AI technologies has profoundly transformed the digital contact landscape, creating realistic Deepfake that poses substantial challenges to public trust and digital media integrity. This…

计算机视觉与模式识别 · 计算机科学 2025-03-11 Ying Xu , Marius Pedersen , Kiran Raja

Long-context understanding is crucial for many NLP applications, yet transformers struggle with efficiency due to the quadratic complexity of self-attention. Sparse attention methods alleviate this cost but often impose static, predefined…

计算与语言 · 计算机科学 2025-06-16 Hanzhi Zhang , Heng Fan , Kewei Sha , Yan Huang , Yunhe Feng

Detecting synthetic from real speech is increasingly crucial due to the risks of misinformation and identity impersonation. While various datasets for synthetic speech analysis have been developed, they often focus on specific areas,…

声音 · 计算机科学 2025-07-18 Zhoulin Ji , Chenhao Lin , Hang Wang , Chao Shen

Audio deepfake detection is well-studied as a binary problem, but partially manipulated speech, where a short synthesised segment is spliced into an otherwise genuine utterance, poses a harder and more realistic threat. Detecting such…

声音 · 计算机科学 2026-05-29 S. Sutharya , Remya K. Sasi

We propose the Multi-Head Density Adaptive Attention Mechanism (DAAM), a novel probabilistic attention framework that can be used for Parameter-Efficient Fine-tuning (PEFT), and the Density Adaptive Transformer (DAT), designed to enhance…

机器学习 · 计算机科学 2024-10-01 Georgios Ioannides , Aman Chadha , Aaron Elkins