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Accurately interpreting cardiac auscultation signals plays a crucial role in diagnosing and managing cardiovascular diseases. However, the paucity of labelled data inhibits classification models' training. Researchers have turned to…

声音 · 计算机科学 2025-06-18 Leigh Abbott , Milan Marocchi , Matthew Fynn , Yue Rong , Sven Nordholm

Real-world optimization problems often involve complex objective functions with costly evaluations. While Bayesian optimization (BO) with Gaussian processes is effective for these challenges, it suffers in high-dimensional spaces due to…

机器学习 · 计算机科学 2024-12-17 Nobuo Namura , Sho Takemori

A key challenge in applying reinforcement learning (RL) to diffusion large language models (dLLMs) lies in the intractability of their likelihood functions, which are essential for the RL objective, necessitating corresponding approximation…

机器学习 · 计算机科学 2025-10-15 Nianyi Lin , Jiajie Zhang , Lei Hou , Juanzi Li

Deepfake videos are causing growing concerns among communities due to their ever-increasing realism. Naturally, automated detection of forged Deepfake videos is attracting a proportional amount of interest of researchers. Current methods…

计算机视觉与模式识别 · 计算机科学 2025-02-13 Yunzhuo Chen , Naveed Akhtar , Nur Al Hasan Haldar , Ajmal Mian

Current semi-supervised video object segmentation (VOS) methods usually leverage the entire features of one frame to predict object masks and update memory. This introduces significant redundant computations. To reduce redundancy, we…

计算机视觉与模式识别 · 计算机科学 2022-07-22 Bo Miao , Mohammed Bennamoun , Yongsheng Gao , Ajmal Mian

Reliable detection of speech deepfakes (spoofs) must remain effective when the distribution of spoofing attacks shifts. We frame the task as domain generalization and show that inserting Low-Rank Adaptation (LoRA) adapters into every…

音频与语音处理 · 电气工程与系统科学 2025-08-18 Janne Laakkonen , Ivan Kukanov , Ville Hautamäki

Robust content moderation requires classification systems that can quickly adapt to evolving policies without costly retraining. We present classification using Retrieval-Augmented Generation (RAG), which shifts traditional classification…

计算与语言 · 计算机科学 2025-08-11 Richard Willats , Josh Pennington , Aravind Mohan , Bertie Vidgen

Vocal dereverberation remains a challenging task in audio processing, particularly for real-time applications where both accuracy and efficiency are crucial. Traditional deep learning approaches often struggle to suppress reverberation…

声音 · 计算机科学 2025-10-02 Daniel G. Williams

Deep learning-based speech enhancement has seen huge improvements and recently also expanded to full band audio (48 kHz). However, many approaches have a rather high computational complexity and require big temporal buffers for real time…

音频与语音处理 · 电气工程与系统科学 2022-05-12 Hendrik Schröter , Alberto N. Escalante-B. , Tobias Rosenkranz , Andreas Maier

Detecting AI-generated images, particularly deepfakes, has become increasingly crucial, with the primary challenge being the generalization to previously unseen manipulation methods. This paper tackles this issue by leveraging the forgery…

计算机视觉与模式识别 · 计算机科学 2025-05-20 Wentang Song , Zhiyuan Yan , Yuzhen Lin , Taiping Yao , Changsheng Chen , Shen Chen , Yandan Zhao , Shouhong Ding , Bin Li

We investigate the unconstrained global optimization of functions with low effective dimensionality, that are constant along certain (unknown) linear subspaces. Extending the technique of random subspace embeddings in [Wang et al., Bayesian…

最优化与控制 · 数学 2020-03-24 Coralia Cartis , Adilet Otemissov

Query optimization is a crucial component for the efficacy of Retrieval-Augmented Generation (RAG) systems. While reinforcement learning (RL)-based agentic and reasoning methods have recently emerged as a promising direction on query…

人工智能 · 计算机科学 2026-01-30 Wei Wen , Sihang Deng , Tianjun Wei , Keyu Chen , Ruizhi Qiao , Xing Sun

Thanks to recent advancements in end-to-end speech modeling technology, it has become increasingly feasible to imitate and clone a user`s voice. This leads to a significant challenge in differentiating between authentic and fabricated audio…

声音 · 计算机科学 2023-06-28 Jie Liu , Zhiba Su , Hui Huang , Caiyan Wan , Quanxiu Wang , Jiangli Hong , Benlai Tang , Fengjie Zhu

While the technologies empowering malicious audio deepfakes have dramatically evolved in recent years due to generative AI advances, the same cannot be said of global research into spoofing (deepfake) countermeasures. This paper highlights…

音频与语音处理 · 电气工程与系统科学 2026-03-16 Héctor Delgado , Giorgio Ramondetti , Emanuele Dalmasso , Gennady Karvitsky , Daniele Colibro , Haydar Talib

Audio deepfake detection systems trained on one dataset often fail when deployed on data from different sources due to distributional shifts in recording conditions, synthesis methods, and acoustic environments. We present a modular…

声音 · 计算机科学 2026-03-10 Urawee Thani , Gagandeep Singh , Priyanka Singh

Recently, reinforcement learning (RL) has been shown to greatly enhance the reasoning capabilities of large language models (LLMs), and RL-based approaches have been progressively applied to visual multimodal tasks. However, the audio…

声音 · 计算机科学 2025-05-15 Gang Li , Jizhong Liu , Heinrich Dinkel , Yadong Niu , Junbo Zhang , Jian Luan

With every advancement in generative AI models, forensics is under increasing pressure. The constant emergence of new generation techniques makes it impossible to collect data for each manipulation to train a deepfake detection model. Thus,…

人工智能 · 计算机科学 2026-05-20 Aritra Marik , Marcel Klemt , Anna Rohrbach

Advancements in AI-synthesized human voices have created a growing threat of impersonation and disinformation, making it crucial to develop methods to detect synthetic human voices. This study proposes a new approach to identifying…

声音 · 计算机科学 2023-04-28 Chengzhe Sun , Shan Jia , Shuwei Hou , Siwei Lyu

The In-context generation paradigm recently has demonstrated strong power in instructional image editing with both data efficiency and synthesis quality. Nevertheless, shaping such in-context learning for instruction-based video editing is…

计算机视觉与模式识别 · 计算机科学 2025-12-22 Zhongwei Zhang , Fuchen Long , Wei Li , Zhaofan Qiu , Wu Liu , Ting Yao , Tao Mei

With recent research advancements, deep learning models are becoming attractive and powerful choices for speech enhancement in real-time applications. While state-of-the-art models can achieve outstanding results in terms of speech quality…

音频与语音处理 · 电气工程与系统科学 2021-05-20 Sebastian Braun , Hannes Gamper , Chandan K. A. Reddy , Ivan Tashev