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We explore unsupervised pre-training for speech recognition by learning representations of raw audio. wav2vec is trained on large amounts of unlabeled audio data and the resulting representations are then used to improve acoustic model…

计算与语言 · 计算机科学 2019-09-12 Steffen Schneider , Alexei Baevski , Ronan Collobert , Michael Auli

EEG-based emotion recognition often requires sufficient labeled training samples to build an effective computational model. Labeling EEG data, on the other hand, is often expensive and time-consuming. To tackle this problem and reduce the…

机器学习 · 计算机科学 2021-07-29 Guangyi Zhang , Ali Etemad

Electroencephalography (EEG) - based air-writing recognition offers a human-computer interaction paradigm by decoding neural activity associated with handwriting movements. Despite its potential, reliable EEG-based air-writing recognition…

信号处理 · 电气工程与系统科学 2026-03-23 Anant Jain , Ayush Tripathi

Analyzing electroencephalographic (EEG) time series can be challenging, especially with deep neural networks, due to the large variability among human subjects and often small datasets. To address these challenges, various strategies, such…

机器学习 · 计算机科学 2025-09-18 Niklas Grieger , Siamak Mehrkanoon , Stephan Bialonski

In future 6G cellular networks, a joint communication and sensing protocol will allow the network to perceive the environment, opening the door for many new applications atop a unified communication-perception infrastructure. However,…

网络与互联网体系结构 · 计算机科学 2022-02-25 Mohammed Alloulah , Akash Deep Singh , Maximilian Arnold

Robust radio signal recognition is fundamental to spectrum management, electromagnetic space security, and intelligent wireless applications, yet existing deep-learning methods rely heavily on large labeled datasets and struggle to capture…

信号处理 · 电气工程与系统科学 2026-04-14 Shilian Zheng , Jie Chen , Luxin Zhang , Xiaoniu Yang

This paper systematically investigates the effectiveness of various augmentations for contrastive self-supervised learning of electrocardiogram (ECG) signals and identifies the best parameters. The baseline of our proposed self-supervised…

信号处理 · 电气工程与系统科学 2022-06-16 Sahar Soltanieh , Ali Etemad , Javad Hashemi

In this work, we investigate the time series representation learning problem using self-supervised techniques. Contrastive learning is well-known in this area as it is a powerful method for extracting information from the series and…

机器学习 · 计算机科学 2024-10-08 Duy A. Nguyen , Trang H. Tran , Huy Hieu Pham , Phi Le Nguyen , Lam M. Nguyen

Despite extensive standardization, diagnostic interviews for mental health disorders encompass substantial subjective judgment. Previous studies have demonstrated that EEG-based neural measures can function as reliable objective correlates…

We present an electrocardiogram (ECG) -based emotion recognition system using self-supervised learning. Our proposed architecture consists of two main networks, a signal transformation recognition network and an emotion recognition network.…

机器学习 · 计算机科学 2020-04-14 Pritam Sarkar , Ali Etemad

Self-supervised pre-training methods based on contrastive learning or regression tasks can utilize more unlabeled data to improve the performance of automatic speech recognition (ASR). However, the robustness impact of combining the two…

音频与语音处理 · 电气工程与系统科学 2022-10-28 Qiu-Shi Zhu , Long Zhou , Jie Zhang , Shu-Jie Liu , Yu-Chen Hu , Li-Rong Dai

Supervised machine learning applications in health care are often limited due to a scarcity of labeled training data. To mitigate this effect of small sample size, we introduce a pre-training approach, Patient Contrastive Learning of…

机器学习 · 计算机科学 2022-04-06 Nathaniel Diamant , Erik Reinertsen , Steven Song , Aaron Aguirre , Collin Stultz , Puneet Batra

Electroencephalogram (EEG) is a non-invasive technique to record bioelectrical signals. Integrating supervised deep learning techniques with EEG signals has recently facilitated automatic analysis across diverse EEG-based tasks. However,…

信号处理 · 电气工程与系统科学 2024-01-12 Weining Weng , Yang Gu , Shuai Guo , Yuan Ma , Zhaohua Yang , Yuchen Liu , Yiqiang Chen

Due to the abundant neurophysiological information in the electroencephalogram (EEG) signal, EEG signals integrated with deep learning methods have gained substantial traction across numerous real-world tasks. However, the development of…

信号处理 · 电气工程与系统科学 2023-10-09 Weining Weng , Yang Gu , Qihui Zhang , Yingying Huang , Chunyan Miao , Yiqiang Chen

Electroencephalography signals (EEGs) contain rich multi-scale information crucial for understanding brain states, with potential applications in diagnosing and advancing the drug development landscape. However, extracting meaningful…

机器学习 · 计算机科学 2025-09-26 D. Darankoum , C. Habermacher , J. Volle , S. Grudinin

Self-supervised learning has emerged as a highly effective approach in the fields of natural language processing and computer vision. It is also applicable to brain signals such as electroencephalography (EEG) data, given the abundance of…

信号处理 · 电气工程与系统科学 2024-01-22 Yuqi Chen , Kan Ren , Kaitao Song , Yansen Wang , Yifan Wang , Dongsheng Li , Lili Qiu

Electroencephalography (EEG) is an objective tool for emotion recognition with promising applications. However, the scarcity of labeled data remains a major challenge in this field, limiting the widespread use of EEG-based emotion…

信号处理 · 电气工程与系统科学 2024-08-05 Weishan Ye , Zhiguo Zhang , Fei Teng , Min Zhang , Jianhong Wang , Dong Ni , Fali Li , Peng Xu , Zhen Liang

Sleep staging is a clinically important task for diagnosing various sleep disorders, but remains challenging to deploy at scale because it because it is both labor-intensive and time-consuming. Supervised deep learning-based approaches can…

信号处理 · 电气工程与系统科学 2024-04-25 Sayeri Lala , Hanlin Goh , Christopher Sandino

Representation learning in electronic health records (EHR) has largely followed paradigms inherited from natural language processing, relying on sequence modeling and reconstruction based objectives that treat clinical labels as ground…

机器学习 · 计算机科学 2026-05-12 Ruan Dong , Yuanyun Zhang , Shi Li

In medical imaging, manual annotations can be expensive to acquire and sometimes infeasible to access, making conventional deep learning-based models difficult to scale. As a result, it would be beneficial if useful representations could be…

计算机视觉与模式识别 · 计算机科学 2020-08-18 Jianbo Jiao , Yifan Cai , Mohammad Alsharid , Lior Drukker , Aris T. Papageorghiou , J. Alison Noble