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Leveraging multimodal information from biosignals is vital for building a comprehensive representation of people's physical and mental states. However, multimodal biosignals often exhibit substantial distributional shifts between…

机器学习 · 计算机科学 2024-04-22 Ran Liu , Ellen L. Zippi , Hadi Pouransari , Chris Sandino , Jingping Nie , Hanlin Goh , Erdrin Azemi , Ali Moin

The development of deep learning models in medical image analysis is majorly limited by the lack of large-sized and well-annotated datasets. Unsupervised learning does not require labels and is more suitable for solving medical image…

计算机视觉与模式识别 · 计算机科学 2023-01-06 Zi'an Xu , Yin Dai , Fayu Liu , Weibing Chen , Yue Liu , Lifu Shi , Sheng Liu , Yuhang Zhou

This paper studies masked autoencoder (MAE) video pre-training for various temporal matching-based downstream tasks, i.e., object-level tracking tasks including video object tracking (VOT) and video object segmentation (VOS),…

计算机视觉与模式识别 · 计算机科学 2025-04-07 Qiangqiang Wu , Tianyu Yang , Ziquan Liu , Wei Lin , Baoyuan Wu , Antoni B. Chan

Transfer learning using latent representations from pre-trained speech models achieves outstanding performance in tasks where labeled data is scarce. However, their applicability to non-speech data and the specific acoustic properties…

Building a good speech recognition system usually requires large amounts of transcribed data, which is expensive to collect. To tackle this problem, many unsupervised pre-training methods have been proposed. Among these methods, Masked…

音频与语音处理 · 电气工程与系统科学 2020-06-24 Dongwei Jiang , Wubo Li , Ruixiong Zhang , Miao Cao , Ne Luo , Yang Han , Wei Zou , Xiangang Li

We propose a method named AudioFormer,which learns audio feature representations through the acquisition of discrete acoustic codes and subsequently fine-tunes them for audio classification tasks. Initially,we introduce a novel perspective…

声音 · 计算机科学 2023-08-28 Zhaohui Li , Haitao Wang , Xinghua Jiang

Recently, a generative variational autoencoder (VAE) has been proposed for speech enhancement to model speech statistics. However, this approach only uses clean speech in the training phase, making the estimation particularly sensitive to…

音频与语音处理 · 电气工程与系统科学 2021-05-18 Huajian Fang , Guillaume Carbajal , Stefan Wermter , Timo Gerkmann

Distributed fiber-optic acoustic sensing (DAS) has emerged as a transformative approach for distributed vibration measurement with high spatial resolution and long measurement range while maintaining cost-efficiency. However, the…

信号处理 · 电气工程与系统科学 2025-12-15 Junyi Duan , Jiageng Chen , Zuyuan He

Masked image modeling (MIM) has been recognized as a strong self-supervised pre-training approach in the vision domain. However, the mechanism and properties of the learned representations by such a scheme, as well as how to further enhance…

计算机视觉与模式识别 · 计算机科学 2024-04-10 Kevin Zhang , Zhiqiang Shen

Text variational autoencoders (VAEs) are notorious for posterior collapse, a phenomenon where the model's decoder learns to ignore signals from the encoder. Because posterior collapse is known to be exacerbated by expressive decoders,…

计算与语言 · 计算机科学 2021-11-25 Seongmin Park , Jihwa Lee

Masked autoencoder (MAE) is a promising self-supervised pre-training technique that can improve the representation learning of a neural network without human intervention. However, applying MAE directly to volumetric medical images poses…

计算机视觉与模式识别 · 计算机科学 2023-08-24 Jia-Xin Zhuang , Luyang Luo , Hao Chen

Transformer models have achieved state-of-the-art results across a diverse range of domains. However, concern over the cost of training the attention mechanism to learn complex dependencies between distant inputs continues to grow. In…

Transformer models have been introduced into end-to-end speech recognition with state-of-the-art performance on various tasks owing to their superiority in modeling long-term dependencies. However, such improvements are usually obtained…

声音 · 计算机科学 2020-11-18 Haoneng Luo , Shiliang Zhang , Ming Lei , Lei Xie

Large language models have found success by scaling up capabilities to work in general settings. The same can unfortunately not be said for interpretability methods. The current trend in mechanistic interpretability is to provide precise…

机器学习 · 计算机科学 2026-04-07 Jonathan Katzy , Razvan-Mihai Popescu , Erik Mekkes , Arie van Deursen , Maliheh Izadi

Marmoset monkeys exhibit complex vocal communication, challenging the view that nonhuman primates vocal communication is entirely innate, and show similar features of human speech, such as vocal labeling of others and turn-taking. Studying…

计算与语言 · 计算机科学 2025-09-16 Talia Sternberg , Michael London , David Omer , Yossi Adi

Despite the growing interest in unsupervised learning, extracting meaningful knowledge from unlabelled audio remains an open challenge. To take a step in this direction, we recently proposed a problem-agnostic speech encoder (PASE), that…

音频与语音处理 · 电气工程与系统科学 2020-04-21 Mirco Ravanelli , Jianyuan Zhong , Santiago Pascual , Pawel Swietojanski , Joao Monteiro , Jan Trmal , Yoshua Bengio

Analyzing individual emotions during group conversation is crucial in developing intelligent agents capable of natural human-machine interaction. While reliable emotion recognition techniques depend on different modalities (text, audio,…

Human emotion recognition holds a pivotal role in facilitating seamless human-computer interaction. This paper delineates our methodology in tackling the Valence-Arousal (VA) Estimation Challenge, Expression (Expr) Classification Challenge,…

计算机视觉与模式识别 · 计算机科学 2024-03-19 Weiwei Zhou , Jiada Lu , Chenkun Ling , Weifeng Wang , Shaowei Liu

In this work, we examine the impact of inter-patch dependencies in the decoder of masked autoencoders (MAE) on representation learning. We decompose the decoding mechanism for masked reconstruction into self-attention between mask tokens…

计算机视觉与模式识别 · 计算机科学 2025-04-11 Letian Fu , Long Lian , Renhao Wang , Baifeng Shi , Xudong Wang , Adam Yala , Trevor Darrell , Alexei A. Efros , Ken Goldberg

Recently, self-attention models such as Transformers have given competitive results compared to recurrent neural network systems in speech recognition. The key factor for the outstanding performance of self-attention models is their ability…

音频与语音处理 · 电气工程与系统科学 2020-05-29 Shucong Zhang , Erfan Loweimi , Peter Bell , Steve Renals