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Self-supervised learning (SSL) has revolutionized learning from large-scale unlabeled datasets, yet the intrinsic relationship between pretraining data and the learned representations remains poorly understood. Traditional supervised…

机器学习 · 计算机科学 2024-12-24 Nidhin Harilal , Amit Kiran Rege , Reza Akbarian Bafghi , Maziar Raissi , Claire Monteleoni

Remote sensing data has been widely used for various Earth Observation (EO) missions such as land use and cover classification, weather forecasting, agricultural management, and environmental monitoring. Most existing remote sensing…

计算机视觉与模式识别 · 计算机科学 2023-11-14 Xin Zhang , Liangxiu Han

Recently, there has been a vast interest in self-supervised learning (SSL) where the model is pre-trained on large scale unlabeled data and then fine-tuned on a small labeled dataset. The common wisdom is that SSL helps resource-limited…

音频与语音处理 · 电气工程与系统科学 2021-07-13 Chengyi Wang , Yu Wu , Shujie Liu , Jinyu Li , Yao Qian , Kenichi Kumatani , Furu Wei

Recent advancements in Deep and Self-Supervised Learning (SSL) have led to substantial improvements in Speech Emotion Recognition (SER) performance, reaching unprecedented levels. However, obtaining sufficient amounts of accurately labeled…

计算与语言 · 计算机科学 2025-02-25 Bulat Khaertdinov , Pedro Jeuris , Annanda Sousa , Enrique Hortal

The rapid expansion of large-scale electronic health record (EHR) data offers unique opportunities to improve the accuracy and efficiency of clinical risk estimation. Yet, because clinical events may occur outside the recording health…

统计方法学 · 统计学 2026-05-11 Jie Zhou , Enhao Wang , Xuan Wang

People exploit the predictability of lexical structures during text comprehension. Though predictable structure is also present in speech, the degree to which prosody, e.g. intonation, tempo, and loudness, contributes to such structure…

计算与语言 · 计算机科学 2025-06-04 Sarenne Wallbridge , Christoph Minixhofer , Catherine Lai , Peter Bell

As a neurophysiological response to threat or adverse conditions, stress can affect cognition, emotion and behaviour with potentially detrimental effects on health in the case of sustained exposure. Since the affective content of speech is…

Deep neural networks are efficient at learning the data distribution if it is sufficiently sampled. However, they can be strongly biased by non-relevant factors implicitly incorporated in the training data. These include operational biases,…

计算机视觉与模式识别 · 计算机科学 2022-03-04 Kirill Sirotkin , Pablo Carballeira , Marcos Escudero-Viñolo

Self-supervised learning (SSL), which utilizes the input data itself for representation learning, has achieved state-of-the-art results for various downstream speech tasks. However, most of the previous studies focused on offline…

音频与语音处理 · 电气工程与系统科学 2022-11-11 Zili Huang , Zhuo Chen , Naoyuki Kanda , Jian Wu , Yiming Wang , Jinyu Li , Takuya Yoshioka , Xiaofei Wang , Peidong Wang

Continuous collection of physiological data from wearable sensors enables temporal characterization of individual behaviors. Understanding the relation between an individual's behavioral patterns and psychological states can help identify…

Self-supervised learning (SSL) is a scalable way to learn general visual representations since it learns without labels. However, large-scale unlabeled datasets in the wild often have long-tailed label distributions, where we know little…

机器学习 · 计算机科学 2022-05-24 Hong Liu , Jeff Z. HaoChen , Adrien Gaidon , Tengyu Ma

Real-time physiological data collection and analysis play a central role in modern well-being applications. Personalized classifiers and detectors have been shown to outperform general classifiers in many contexts. However, building…

计算机与社会 · 计算机科学 2021-08-04 Ali Tazarv , Sina Labbaf , Amir M. Rahmani , Nikil Dutt , Marco Levorato

Stress is one of the main issues of nowadays lifestyle. If it becomes chronic it can have adverse effects on the human body. Thus, the early detection of stress is crucial to prevent its hurting effects on the human body and have a…

机器学习 · 计算机科学 2024-10-17 Yasin Hasanpoor , Bahram Tarvirdizadeh , Khalil Alipour , Mohammad Ghamari

Increased use of sensor signals from wearable devices as rich sources of physiological data has sparked growing interest in developing health monitoring systems to identify changes in an individual's health profile. Indeed, machine learning…

机器学习 · 计算机科学 2022-10-17 Magda Amiridi , Gregory Darnell , Sean Jewell

The lack of labeled data is a common challenge in speech classification tasks, particularly those requiring extensive subjective assessment, such as cognitive state classification. In this work, we propose a Semi-Supervised Learning (SSL)…

音频与语音处理 · 电气工程与系统科学 2025-05-01 Yuanchao Li , Zixing Zhang , Jing Han , Peter Bell , Catherine Lai

Human Activity Recognition (HAR) based on the sensors of mobile/wearable devices aims to detect the physical activities performed by humans in their daily lives. Although supervised learning methods are the most effective in this task,…

信号处理 · 电气工程与系统科学 2024-04-25 Sannara Ek , Riccardo Presotto , Gabriele Civitarese , François Portet , Philippe Lalanda , Claudio Bettini

The rapid growth of the availability of wearable biosensors has created the opportunity for using biological signals to measure worker performance. An important question is how to use such signals to not just measure, but actually predict…

应用统计 · 统计学 2016-06-07 Carter Mundell , Juan Pablo Vielma , Tauhid Zaman

Self-supervised learning (SSL) has been investigated to generate task-agnostic representations across various domains. However, such investigation has not been conducted for detecting multiple mental disorders. The rationale behind the…

机器学习 · 计算机科学 2024-03-25 Rohan Kumar Gupta , Rohit Sinha

Prior works on self-supervised pre-training focus on the joint training scenario, where massive unlabeled data are assumed to be given as input all at once, and only then is a learner trained. Unfortunately, such a problem setting is often…

机器学习 · 计算机科学 2022-07-22 Dapeng Hu , Shipeng Yan , Qizhengqiu Lu , Lanqing Hong , Hailin Hu , Yifan Zhang , Zhenguo Li , Xinchao Wang , Jiashi Feng

Multimodal wearable physiological data in daily life have been used to estimate self-reported stress labels. However, missing data modalities in data collection makes it challenging to leverage all the collected samples. Besides,…

信号处理 · 电气工程与系统科学 2022-02-23 Han Yu , Thomas Vaessen , Inez Myin-Germeys , Akane Sano