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Contrastive learning has achieved remarkable success in representation learning via self-supervision in unsupervised settings. However, effectively adapting contrastive learning to supervised learning tasks remains as a challenge in…

Computation and Language · Computer Science 2022-01-24 Qianben Chen , Richong Zhang , Yaowei Zheng , Yongyi Mao

Due to high data demands of current methods, attention to zero-shot cross-lingual spoken language understanding (SLU) has grown, as such approaches greatly reduce human annotation effort. However, existing models solely rely on shared…

Computation and Language · Computer Science 2022-04-19 Libo Qin , Qiguang Chen , Tianbao Xie , Qixin Li , Jian-Guang Lou , Wanxiang Che , Min-Yen Kan

Contrastive learning has achieved great success in self-supervised visual representation learning, but existing approaches mostly ignored spatial information which is often crucial for visual representation. This paper presents…

Computer Vision and Pattern Recognition · Computer Science 2020-11-20 Xinyue Huo , Lingxi Xie , Longhui Wei , Xiaopeng Zhang , Hao Li , Zijie Yang , Wengang Zhou , Houqiang Li , Qi Tian

Despite the great success of spoken language understanding (SLU) in high-resource languages, it remains challenging in low-resource languages mainly due to the lack of labeled training data. The recent multilingual code-switching approach…

Computation and Language · Computer Science 2022-10-26 Shining Liang , Linjun Shou , Jian Pei , Ming Gong , Wanli Zuo , Xianglin Zuo , Daxin Jiang

Contrastive learning is a well-established paradigm in representation learning. The standard framework of contrastive learning minimizes the distance between "similar" instances and maximizes the distance between dissimilar ones in the…

Machine Learning · Computer Science 2025-02-06 Naghmeh Ghanooni , Barbod Pajoum , Harshit Rawal , Sophie Fellenz , Vo Nguyen Le Duy , Marius Kloft

EEG-based brain-computer interfaces (BCIs) have shown promise in various applications, such as motor imagery and cognitive state monitoring. However, decoding visual representations from EEG signals remains a significant challenge due to…

Computer Vision and Pattern Recognition · Computer Science 2025-07-16 Tariq Mehmood , Hamza Ahmad , Muhammad Haroon Shakeel , Murtaza Taj

We introduce SemCSE, an unsupervised method for learning semantic embeddings of scientific texts. Building on recent advances in contrastive learning for text embeddings, our approach leverages LLM-generated summaries of scientific…

Computation and Language · Computer Science 2025-07-18 Marc Brinner , Sina Zarriess

We propose a novel ECGAN for the challenging semantic image synthesis task. Although considerable improvement has been achieved, the quality of synthesized images is far from satisfactory due to three largely unresolved challenges. 1) The…

Computer Vision and Pattern Recognition · Computer Science 2023-03-29 Hao Tang , Xiaojuan Qi , Guolei Sun , Dan Xu , Nicu Sebe , Radu Timofte , Luc Van Gool

Text-video retrieval aims to find the most semantically similar videos with given text queries. However, since videos contain more diverse content than texts, the main semantics expressed by each text-video pair is often partially relevant.…

Information Retrieval · Computer Science 2026-05-19 Xiaolun Jing , Xinxing Yang , Genke Yang

Conventional machine learning models, particularly tree-based approaches, have demonstrated promising performance across various clinical prediction tasks using electronic health record (EHR) data. Despite their strengths, these models…

Computation and Language · Computer Science 2025-05-26 Sara Ketabi , Dhanesh Ramachandram

Contrastive learning (CL) aims to learn useful representation without relying on expert annotations in the context of medical image segmentation. Existing approaches mainly contrast a single positive vector (i.e., an augmentation of the…

Computer Vision and Pattern Recognition · Computer Science 2022-03-08 Chenyu You , Ruihan Zhao , Lawrence Staib , James S. Duncan

Recently, substantial progress has been made in the area of Brain-Computer Interface (BCI) using modern machine learning techniques to decode and interpret brain signals. While Electroencephalography (EEG) has provided a non-invasive method…

Signal Processing · Electrical Eng. & Systems 2020-10-26 Nik Khadijah Nik Aznan , Amir Atapour-Abarghouei , Stephen Bonner , Jason D. Connolly , Toby P. Breckon

We propose a novel ECGAN for the challenging semantic image synthesis task. Although considerable improvements have been achieved by the community in the recent period, the quality of synthesized images is far from satisfactory due to three…

Computer Vision and Pattern Recognition · Computer Science 2023-07-25 Hao Tang , Guolei Sun , Nicu Sebe , Luc Van Gool

Electrocardiography (ECG) is central to cardiovascular care, but conventional AI models are often restricted to common arrhythmias and may generalize poorly across populations or clinically subtle diseases. We developed ECG Contrastive…

An electrocardiogram (ECG) is a widely used, cost-effective tool for detecting electrical abnormalities in the heart. However, it cannot directly measure functional parameters, such as ventricular volumes and ejection fraction, which are…

Image and Video Processing · Electrical Eng. & Systems 2025-06-27 Alexander Selivanov , Philip Müller , Özgün Turgut , Nil Stolt-Ansó , Daniel Rückert

Speech disorders such as dysarthria and anarthria can severely impair the patient's ability to communicate verbally. Speech decoding brain-computer interfaces (BCIs) offer a potential alternative by directly translating speech intentions…

Human-Computer Interaction · Computer Science 2025-05-27 Hongbin Wang , Zhihong Jia , Yuanzhong Shen , Ziwei Wang , Siyang Li , Kai Shu , Feng Hu , Dongrui Wu

Ultrasound standard plane recognition is essential for clinical tasks such as disease screening, organ evaluation, and biometric measurement. However, existing methods fail to effectively exploit shallow structural information and struggle…

Computer Vision and Pattern Recognition · Computer Science 2025-11-18 Qing Cai , Guihao Yan , Fan Zhang , Cheng Zhang , Zhi Liu

Contrastive learning is a method of learning visual representations by training Deep Neural Networks (DNNs) to increase the similarity between representations of positive pairs (transformations of the same image) and reduce the similarity…

Machine Learning · Computer Science 2022-10-26 Beomsu Kim , Jong Chul Ye

Biologically inspired spiking neural networks (SNNs) have garnered considerable attention due to their low-energy consumption and spatio-temporal information processing capabilities. Most existing SNNs training methods first integrate…

Computer Vision and Pattern Recognition · Computer Science 2023-05-24 Haonan Qiu , Zeyin Song , Yanqi Chen , Munan Ning , Wei Fang , Tao Sun , Zhengyu Ma , Li Yuan , Yonghong Tian

Glaucoma is one of the leading causes of vision impairment. Digital imaging techniques, such as color fundus photography (CFP) and optical coherence tomography (OCT), provide quantitative and noninvasive methods for glaucoma diagnosis.…

Computer Vision and Pattern Recognition · Computer Science 2024-07-22 Zhiyuan Yang , Bo Zhang , Yufei Shi , Ningze Zhong , Johnathan Loh , Huihui Fang , Yanwu Xu , Si Yong Yeo