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Self-supervised learning has proven to be an effective way to learn representations in domains where annotated labels are scarce, such as medical imaging. A widely adopted framework for this purpose is contrastive learning and it has been…

Computer Vision and Pattern Recognition · Computer Science 2024-02-23 Hugo Figueiras , Helena Aidos , Nuno Cruz Garcia

As digital medical imaging becomes more prevalent and archives increase in size, representation learning exposes an interesting opportunity for enhanced medical decision support systems. On the other hand, medical imaging data is often…

Computer Vision and Pattern Recognition · Computer Science 2018-07-25 Eduardo Pinho , Carlos Costa

Current artificial intelligence models for medical imaging are predominantly single modality and single disease. Attempts to create multimodal and multi-disease models have resulted in inconsistent clinical accuracy. Furthermore, training…

Self-supervised pretraining has been observed to be effective at improving feature representations for transfer learning, leveraging large amounts of unlabelled data. This review summarizes recent research into its usage in X-ray, computed…

Machine Learning · Computer Science 2023-09-07 Blake VanBerlo , Jesse Hoey , Alexander Wong

We propose to build omni-modal intelligence, which is capable of understanding any modality and learning universal representations. In specific, we propose a scalable pretraining paradigm, named Multimodal Context (MiCo), which can scale up…

Computer Vision and Pattern Recognition · Computer Science 2024-06-14 Yiyuan Zhang , Handong Li , Jing Liu , Xiangyu Yue

Vision-language representation learning largely benefits from image-text alignment through contrastive losses (e.g., InfoNCE loss). The success of this alignment strategy is attributed to its capability in maximizing the mutual information…

Computer Vision and Pattern Recognition · Computer Science 2022-03-29 Jinyu Yang , Jiali Duan , Son Tran , Yi Xu , Sampath Chanda , Liqun Chen , Belinda Zeng , Trishul Chilimbi , Junzhou Huang

Integrating information from multiple modalities is arguably one of the essential prerequisites for grounding artificial intelligence systems with an understanding of the real world. Recent advances in video transformers that jointly learn…

Computer Vision and Pattern Recognition · Computer Science 2023-11-15 Dota Tianai Dong , Mariya Toneva

Meta-training has been empirically demonstrated to be the most effective pre-training method for few-shot learning of medical image classifiers (i.e., classifiers modeled with small training sets). However, the effectiveness of…

Computer Vision and Pattern Recognition · Computer Science 2019-07-19 Gabriel Maicas , Cuong Nguyen , Farbod Motlagh , Jacinto C. Nascimento , Gustavo Carneiro

Pre-training a recognition model with contrastive learning on a large dataset of unlabeled data has shown great potential to boost the performance of a downstream task, e.g., image classification. However, in domains such as medical…

Computer Vision and Pattern Recognition · Computer Science 2021-08-24 Jizong Peng , Ping Wang , Chrisitian Desrosiers , Marco Pedersoli

In clinical practice, multi-modal magnetic resonance imaging (MRI) with different contrasts is usually acquired in a single study to assess different properties of the same region of interest in the human body. The whole acquisition process…

Image and Video Processing · Electrical Eng. & Systems 2022-04-05 Kai Xuan , Lei Xiang , Xiaoqian Huang , Lichi Zhang , Shu Liao , Dinggang Shen , Qian Wang

Learning similarity is a key aspect in medical image analysis, particularly in recommendation systems or in uncovering the interpretation of anatomical data in images. Most existing methods learn such similarities in the embedding space…

Computer Vision and Pattern Recognition · Computer Science 2022-06-22 Sukesh Adiga , Jose Dolz , Herve Lombaert

Recently self supervised learning has seen explosive growth and use in variety of machine learning tasks because of its ability to avoid the cost of annotating large-scale datasets. This paper gives an overview for best self supervised…

Machine Learning · Computer Science 2022-10-21 Naman Goyal

Self-supervised learning methods have witnessed a recent surge of interest after proving successful in multiple application fields. In this work, we leverage these techniques, and we propose 3D versions for five different self-supervised…

Computer Vision and Pattern Recognition · Computer Science 2020-11-03 Aiham Taleb , Winfried Loetzsch , Noel Danz , Julius Severin , Thomas Gaertner , Benjamin Bergner , Christoph Lippert

Pre-trained language models have been shown to improve performance in many natural language tasks substantially. Although the early focus of such models was single language pre-training, recent advances have resulted in cross-lingual and…

Computation and Language · Computer Science 2021-04-22 Ozan Caglayan , Menekse Kuyu , Mustafa Sercan Amac , Pranava Madhyastha , Erkut Erdem , Aykut Erdem , Lucia Specia

Magnetic resonance imaging (MRI) is a crucial medical imaging modality. However, long acquisition times remain a significant challenge, leading to increased costs, and reduced patient comfort. Recent studies have shown the potential of…

Computer Vision and Pattern Recognition · Computer Science 2025-07-30 Amirmohammad Shamaei , Alexander Stebner , Salome , Bosshart , Johanna Ospel , Gouri Ginde , Mariana Bento , Roberto Souza

Prompt learning has emerged as an efficient alternative for fine-tuning foundational models, such as CLIP, for various downstream tasks. However, there is no work that provides a comprehensive explanation for the working mechanism of the…

Computer Vision and Pattern Recognition · Computer Science 2024-03-13 Shuailei Ma , Chen-Wei Xie , Ying Wei , Siyang Sun , Jiaqi Fan , Xiaoyi Bao , Yuxin Guo , Yun Zheng

Deep learning has transformed computer vision but relies heavily on large labeled datasets and computational resources. Transfer learning, particularly fine-tuning pretrained models, offers a practical alternative; however, models…

Computer Vision and Pattern Recognition · Computer Science 2025-05-23 Iván Matas , Carmen Serrano , Miguel Nogales , David Moreno , Lara Ferrándiz , Teresa Ojeda , Begoña Acha

Contrastive learning based vision-language joint pre-training has emerged as a successful representation learning strategy. In this paper, we present a prototype representation learning framework incorporating both global and local…

Computer Vision and Pattern Recognition · Computer Science 2024-03-12 Pujin Cheng , Li Lin , Junyan Lyu , Yijin Huang , Wenhan Luo , Xiaoying Tang

While self-supervised learning (SSL) algorithms have been widely used to pre-train deep models, few efforts [11] have been done to improve representation learning of X-ray image analysis with SSL pre-trained models. In this work, we study a…

Computer Vision and Pattern Recognition · Computer Science 2023-10-04 Weibin Liao , Haoyi Xiong , Qingzhong Wang , Yan Mo , Xuhong Li , Yi Liu , Zeyu Chen , Siyu Huang , Dejing Dou

Recent breakthroughs in self supervised training have led to a new class of pretrained vision language models. While there have been investigations of bias in multimodal models, they have mostly focused on gender and racial bias, giving…

Computer Vision and Pattern Recognition · Computer Science 2023-03-23 Sepehr Janghorbani , Gerard de Melo