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Diffusion models have achieved impressive success in generating photorealistic images, but challenges remain in ensuring precise semantic alignment with input prompts. Optimizing the initial noisy latent offers a more efficient alternative…

计算机视觉与模式识别 · 计算机科学 2025-10-28 Boming Miao , Chunxiao Li , Xiaoxiao Wang , Andi Zhang , Rui Sun , Zizhe Wang , Yao Zhu

This study addresses the speech enhancement (SE) task within the causal inference paradigm by modeling the noise presence as an intervention. Based on the potential outcome framework, the proposed causal inference-based speech enhancement…

音频与语音处理 · 电气工程与系统科学 2022-11-03 Tsun-An Hsieh , Chao-Han Huck Yang , Pin-Yu Chen , Sabato Marco Siniscalchi , Yu Tsao

Representation Learning is a significant and challenging task in multimodal learning. Effective modality representations should contain two parts of characteristics: the consistency and the difference. Due to the unified multimodal…

计算与语言 · 计算机科学 2021-02-10 Wenmeng Yu , Hua Xu , Ziqi Yuan , Jiele Wu

Audio-visual speech recognition (AVSR) has gained remarkable success for ameliorating the noise-robustness of speech recognition. Mainstream methods focus on fusing audio and visual inputs to obtain modality-invariant representations.…

声音 · 计算机科学 2023-02-03 Chen Chen , Yuchen Hu , Qiang Zhang , Heqing Zou , Beier Zhu , Eng Siong Chng

Recent advancements in instructional fine-tuning have injected noise into embeddings, with NEFTune (Jain et al., 2024) setting benchmarks using uniform noise. Despite NEFTune's empirical findings that uniform noise outperforms Gaussian…

机器学习 · 计算机科学 2026-05-25 Abhay Yadav

Fine-tuning through knowledge transfer from a pre-trained model on a large-scale dataset is a widely spread approach to effectively build models on small-scale datasets. In this work, we show that a recent adversarial attack designed for…

机器学习 · 计算机科学 2021-04-30 Ting-Wu Chin , Cha Zhang , Diana Marculescu

Diffusion models proved to be powerful models for generative speech enhancement. In recent SGMSE+ approaches, training involves a stochastic differential equation for the diffusion process, adding both Gaussian and environmental noise to…

音频与语音处理 · 电气工程与系统科学 2024-06-14 Bunlong Lay , Timo Gerkmann

Existing contrastive learning methods for anomalous sound detection refine the audio representation of each audio sample by using the contrast between the samples' augmentations (e.g., with time or frequency masking). However, they might be…

声音 · 计算机科学 2023-04-11 Jian Guan , Feiyang Xiao , Youde Liu , Qiaoxi Zhu , Wenwu Wang

Deep neural networks are able to memorize noisy labels easily with a softmax cross-entropy (CE) loss. Previous studies attempted to address this issue focus on incorporating a noise-robust loss function to the CE loss. However, the…

机器学习 · 计算机科学 2022-07-26 Li Yi , Sheng Liu , Qi She , A. Ian McLeod , Boyu Wang

Knowledge distillation is the process of transferring knowledge from a more powerful large model (teacher) to a simpler counterpart (student). Numerous current approaches involve the student imitating the knowledge of the teacher directly.…

计算机视觉与模式识别 · 计算机科学 2024-01-18 Zhaoge Liu , Xiaohao Xu , Yunkang Cao , Weiming Shen

A command-following robot that serves people in everyday life must continually improve itself in deployment domains with minimal help from its end users, instead of engineers. Previous methods are either difficult to continuously improve…

机器人学 · 计算机科学 2023-10-18 Peixin Chang , Shuijing Liu , Tianchen Ji , Neeloy Chakraborty , Kaiwen Hong , Katherine Driggs-Campbell

Diffusion models (DMs) are a powerful generative framework that have attracted significant attention in recent years. However, the high computational cost of training DMs limits their practical applications. In this paper, we start with a…

机器学习 · 计算机科学 2024-04-12 Tianshuo Xu , Peng Mi , Ruilin Wang , Yingcong Chen

Although semantic communications have exhibited satisfactory performance for a large number of tasks, the impact of semantic noise and the robustness of the systems have not been well investigated. Semantic noise refers to the misleading…

信号处理 · 电气工程与系统科学 2023-04-20 Qiyu Hu , Guangyi Zhang , Zhijin Qin , Yunlong Cai , Guanding Yu , Geoffrey Ye Li

Representation learning seeks to expose certain aspects of observed data in a learned representation that's amenable to downstream tasks like classification. For instance, a good representation for 2D images might be one that describes only…

Over recent decades have witnessed considerable progress in whether multi-task learning or multi-view learning, but the situation that consider both learning scenes simultaneously has received not too much attention. How to utilize multiple…

计算机视觉与模式识别 · 计算机科学 2022-01-19 Run-kun Lu , Jian-wei Liu , Si-ming Lian , Xin Zuo

Multimodal representation learning aims to construct a shared embedding space in which heterogeneous modalities are semantically aligned. Despite strong empirical results, InfoNCE-based objectives introduce inherent conflicts that yield…

机器学习 · 计算机科学 2026-02-11 Wenzhe Yin , Pan Zhou , Zehao Xiao , Jie Liu , Shujian Yu , Jan-Jakob Sonke , Efstratios Gavves

This study investigates a counterintuitive phenomenon in adversarial machine learning: the potential for noise-based defenses to inadvertently aid evasion attacks in certain scenarios. While randomness is often employed as a defensive…

密码学与安全 · 计算机科学 2024-11-01 Steve Bakos , Pooria Madani , Heidar Davoudi

Recently, an audio-visual speech generative model based on variational autoencoder (VAE) has been proposed, which is combined with a nonnegative matrix factorization (NMF) model for noise variance to perform unsupervised speech enhancement.…

音频与语音处理 · 电气工程与系统科学 2019-11-12 Mostafa Sadeghi , Xavier Alameda-Pineda

State of the art (SOTA) few-shot learning (FSL) methods suffer significant performance drop in the presence of domain differences between source and target datasets. The strong discrimination ability on the source dataset does not…

计算机视觉与模式识别 · 计算机科学 2021-09-24 Hanwen Liang , Qiong Zhang , Peng Dai , Juwei Lu

Benefiting from the development of deep learning, text-to-speech (TTS) techniques using clean speech have achieved significant performance improvements. The data collected from real scenes often contains noise and generally needs to be…

音频与语音处理 · 电气工程与系统科学 2023-09-06 Qiushi Zhu , Yu Gu , Rilin Chen , Chao Weng , Yuchen Hu , Lirong Dai , Jie Zhang