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Although deep convolutional networks have achieved great performance in face recognition tasks, the challenge of domain discrepancy still exists in real world applications. Lack of domain coverage of training data (source domain) makes the…

计算机视觉与模式识别 · 计算机科学 2022-01-25 Chun-Hsien Lin , Bing-Fei Wu

To improve the detection accuracy and generalization of steganalysis, this paper proposes the Steganalysis Contrastive Framework (SCF) based on contrastive learning. The SCF improves the feature representation of steganalysis by maximizing…

人工智能 · 计算机科学 2021-03-02 Yanzhen Ren , Yiwen Liu , Lina Wang

We propose a framework using contrastive learning as a pre-training task to perform image classification in the presence of noisy labels. Recent strategies such as pseudo-labeling, sample selection with Gaussian Mixture models, weighted…

计算机视觉与模式识别 · 计算机科学 2021-04-21 Madalina Ciortan , Romain Dupuis , Thomas Peel

Semi-supervised domain adaptation leverages a few labeled and many unlabeled target samples, making it promising for addressing domain shifts in medical image analysis. However, existing methods struggle with severity classification due to…

计算机视觉与模式识别 · 计算机科学 2026-04-03 Shota Harada , Ryoma Bise , Kiyohito Tanaka , Seiichi Uchida

State-of-the-art speaker recognition systems comprise an x-vector (or i-vector) speaker embedding front-end followed by a probabilistic linear discriminant analysis (PLDA) backend. The effectiveness of these components relies on the…

机器学习 · 计算机科学 2020-04-22 Kong Aik Lee , Qiongqiong Wang , Takafumi Koshinaka

EEG-based tinnitus classification is a valuable tool for tinnitus diagnosis, research, and treatments. Most current works are limited to a single dataset where data patterns are similar. But EEG signals are highly non-stationary, resulting…

信号处理 · 电气工程与系统科学 2022-11-08 Yun Li , Zhe Liu , Lina Yao , Jessica J. M. Monaghan , David McAlpine

Recent advances suggest the advantage of multi-modal training in comparison with single-modal methods. In contrast to this view, in our work we find that similar gain can be obtained from training with different formats of a single…

声音 · 计算机科学 2021-03-25 Luyu Wang , Aaron van den Oord

Recent multimodal models such as Contrastive Language-Image Pre-training (CLIP) have shown remarkable ability to align visual and linguistic representations. However, domains where small visual differences carry large semantic significance,…

计算机视觉与模式识别 · 计算机科学 2026-03-03 Hiroshi Sasaki

Speech Emotion Recognition (SER) is a challenging task due to limited data and blurred boundaries of certain emotions. In this paper, we present a comprehensive approach to improve the SER performance throughout the model lifecycle,…

音频与语音处理 · 电气工程与系统科学 2023-09-01 Xuechen Wang , Shiwan Zhao , Yong Qin

Recent advancements in self-supervised learning have demonstrated that effective visual representations can be learned from unlabeled images. This has led to increased interest in applying self-supervised learning to the medical domain,…

计算机视觉与模式识别 · 计算机科学 2023-04-10 Xiangyi Yan , Junayed Naushad , Chenyu You , Hao Tang , Shanlin Sun , Kun Han , Haoyu Ma , James Duncan , Xiaohui Xie

Despite the success of contrastive learning in Music Information Retrieval, the inherent ambiguity of contrastive self-supervision presents a challenge. Relying solely on augmentation chains and self-supervised positive sampling strategies…

音频与语音处理 · 电气工程与系统科学 2024-07-22 Julien Guinot , Elio Quinton , György Fazekas

Contrastive learning has delivered impressive results for various tasks in the self-supervised regime. However, existing approaches optimize for learning representations specific to downstream scenarios, i.e., \textit{global}…

机器学习 · 计算机科学 2021-10-29 Shuang Ma , Zhaoyang Zeng , Daniel McDuff , Yale Song

Modern machine learning tools have shown promise in detecting symptoms of neurological disorders. However, current approaches typically train a unique classifier for each subject. This subject-specific training scheme requires long labeled…

机器学习 · 计算机科学 2021-03-02 Bingzhao Zhu , Mahsa Shoaran

Sound localization aims to find the source of the audio signal in the visual scene. However, it is labor-intensive to annotate the correlations between the signals sampled from the audio and visual modalities, thus making it difficult to…

计算机视觉与模式识别 · 计算机科学 2021-04-02 Yan-Bo Lin , Hung-Yu Tseng , Hsin-Ying Lee , Yen-Yu Lin , Ming-Hsuan Yang

Monocular depth estimation has shown promise in general imaging tasks, aiding in localization and 3D reconstruction. While effective in various domains, its application to bronchoscopic images is hindered by the lack of labeled data,…

图像与视频处理 · 电气工程与系统科学 2024-11-08 Qingyao Tian , Huai Liao , Xinyan Huang , Lujie Li , Hongbin Liu

Contrastive learning is a popular form of self-supervised learning that encourages augmentations (views) of the same input to have more similar representations compared to augmentations of different inputs. Recent attempts to theoretically…

We present a self-supervised learning method to learn audio and video representations. Prior work uses the natural correspondence between audio and video to define a standard cross-modal instance discrimination task, where a model is…

计算机视觉与模式识别 · 计算机科学 2021-03-31 Pedro Morgado , Ishan Misra , Nuno Vasconcelos

We present a novel unsupervised domain adaptation method for semantic segmentation that generalizes a model trained with source images and corresponding ground-truth labels to a target domain. A key to domain adaptive semantic segmentation…

计算机视觉与模式识别 · 计算机科学 2022-07-25 Geon Lee , Chanho Eom , Wonkyung Lee , Hyekang Park , Bumsub Ham

While recent automatic speech recognition systems achieve remarkable performance when large amounts of adequate, high quality annotated speech data is used for training, the same systems often only achieve an unsatisfactory result for tasks…

音频与语音处理 · 电气工程与系统科学 2022-01-19 Michael Gref , Oliver Walter , Christoph Schmidt , Sven Behnke , Joachim Köhler

Supervised learning with large scale labeled datasets and deep layered models has made a paradigm shift in diverse areas in learning and recognition. However, this approach still suffers generalization issues under the presence of a domain…

机器学习 · 统计学 2016-03-28 Ozan Sener , Hyun Oh Song , Ashutosh Saxena , Silvio Savarese