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There are two popular loss functions used for vision-language retrieval, i.e., triplet loss and contrastive learning loss, both of them essentially minimize the difference between the similarities of negative pairs and positive pairs. More…

Computer Vision and Pattern Recognition · Computer Science 2022-11-08 Zheng Li , Caili Guo , Xin Wang , Zerun Feng , Jenq-Neng Hwang , Zhongtian Du

The goal of Continual Learning (CL) task is to continuously learn multiple new tasks sequentially while achieving a balance between the plasticity and stability of new and old knowledge. This paper analyzes that this insufficiency arises…

Machine Learning · Computer Science 2024-05-28 Hanxi Xiao , Fan Lyu

Continual learning with deep neural networks presents challenges distinct from both the fixed-dataset and convex continual learning regimes. One such challenge is plasticity loss, wherein a neural network trained in an online fashion…

Machine Learning · Computer Science 2024-11-04 Arthur Juliani , Jordan T. Ash

In reinforcement learning (RL), it is easier to solve a task if given a good representation. While deep RL should automatically acquire such good representations, prior work often finds that learning representations in an end-to-end fashion…

Machine Learning · Computer Science 2023-02-21 Benjamin Eysenbach , Tianjun Zhang , Ruslan Salakhutdinov , Sergey Levine

Contrastive self-supervised learning (CSL) with a prototypical regularization has been introduced in learning meaningful representations for downstream tasks that require strong semantic information. However, to optimize CSL with a loss…

Computer Vision and Pattern Recognition · Computer Science 2022-10-20 Shentong Mo , Zhun Sun , Chao Li

Features of the same sample generated by different pretrained models often exhibit inherently distinct feature distributions because of discrepancies in the model pretraining objectives or architectures. Learning invariant representations…

Computer Vision and Pattern Recognition · Computer Science 2026-02-05 Jie Chen , Zhu Wang , Chuanbin Liu , Xi Peng

A prominent approach to visual Reinforcement Learning (RL) is to learn an internal state representation using self-supervised methods, which has the potential benefit of improved sample-efficiency and generalization through additional…

Machine Learning · Computer Science 2023-03-16 Yanjie Ze , Nicklas Hansen , Yinbo Chen , Mohit Jain , Xiaolong Wang

Designing proper loss functions for vision tasks has been a long-standing research direction to advance the capability of existing models. For object detection, the well-established classification and regression loss functions have been…

Computer Vision and Pattern Recognition · Computer Science 2021-02-10 Peidong Liu , Gengwei Zhang , Bochao Wang , Hang Xu , Xiaodan Liang , Yong Jiang , Zhenguo Li

Loss functions play a pivotal role in optimizing recommendation models. Among various loss functions, Softmax Loss (SL) and Cosine Contrastive Loss (CCL) are particularly effective. Their theoretical connections and differences warrant…

Information Retrieval · Computer Science 2025-06-19 Shengjia Zhang , Jiawei Chen , Changdong Li , Sheng Zhou , Qihao Shi , Yan Feng , Chun Chen , Can Wang

This paper is concerned with contrastive learning (CL) for low-level image restoration and enhancement tasks. We propose a new label-efficient learning paradigm based on residuals, residual contrastive learning (RCL), and derive an…

Computer Vision and Pattern Recognition · Computer Science 2022-04-28 Nanqing Dong , Matteo Maggioni , Yongxin Yang , Eduardo Pérez-Pellitero , Ales Leonardis , Steven McDonagh

Continual learning has been developed using standard supervised contrastive loss from the perspective of feature learning. Due to the data imbalance during the training, there are still challenges in learning better representations. In this…

Machine Learning · Computer Science 2023-06-06 Bilan Gao , YoungBin Kim

A reinforcement-learning-based non-uniform compressed sensing (NCS) framework for time-varying signals is introduced. The proposed scheme, referred to as RL-NCS, aims to boost the performance of signal recovery through an optimal and…

Machine Learning · Computer Science 2021-07-05 Nazmul Karim , Alireza Zaeemzadeh , Nazanin Rahnavard

In this work, a discriminatively learned CNN embedding is proposed for remote sensing image scene classification. Our proposed siamese network simultaneously computes the classification loss function and the metric learning loss function of…

Computer Vision and Pattern Recognition · Computer Science 2019-12-03 Wen Wang , Lijun Du , Yinxing Gao , Yanzhou Su , Feng Wang , Jian Cheng

In continual learning (CL), the goal is to design models that can learn a sequence of tasks without catastrophic forgetting. While there is a rich set of techniques for CL, relatively little understanding exists on how representations built…

Machine Learning · Computer Science 2022-11-08 Yingcong Li , Mingchen Li , M. Salman Asif , Samet Oymak

We propose a way to learn visual features that are compatible with previously computed ones even when they have different dimensions and are learned via different neural network architectures and loss functions. Compatible means that, if…

Computer Vision and Pattern Recognition · Computer Science 2021-01-07 Yantao Shen , Yuanjun Xiong , Wei Xia , Stefano Soatto

Contrastive Learning (CL) has been proved to be a powerful self-supervised approach for a wide range of domains, including computer vision and graph representation learning. However, the incremental learning issue of CL has rarely been…

Machine Learning · Computer Science 2023-01-31 Cheng Ji , Jianxin Li , Hao Peng , Jia Wu , Xingcheng Fu , Qingyun Sun , Phillip S. Yu

In continual learning, networks confront a trade-off between stability and plasticity when trained on a sequence of tasks. To bolster plasticity without sacrificing stability, we propose a novel training algorithm called LRFR. This approach…

Machine Learning · Computer Science 2023-12-15 Zhenrong Liu , Yang Li , Yi Gong , Yik-Chung Wu

The ongoing energy transition drives the development of decentralised renewable energy sources, which are heterogeneous and weather-dependent, complicating their integration into energy systems. This study tackles this issue by introducing…

Machine Learning · Computer Science 2024-07-01 Marine Cauz , Adrien Bolland , Nicolas Wyrsch , Christophe Ballif

We present Cycle-Contrastive Learning (CCL), a novel self-supervised method for learning video representation. Following a nature that there is a belong and inclusion relation of video and its frames, CCL is designed to find correspondences…

Computer Vision and Pattern Recognition · Computer Science 2020-10-29 Quan Kong , Wenpeng Wei , Ziwei Deng , Tomoaki Yoshinaga , Tomokazu Murakami

Current image compression models often require separate models for each quality level, making them resource-intensive in terms of both training and storage. To address these limitations, we propose an innovative approach that utilizes…

Image and Video Processing · Electrical Eng. & Systems 2025-09-30 Ayman A. Ameen , Thomas Richter , André Kaup