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Self-supervised learning algorithms based on instance discrimination train encoders to be invariant to pre-defined transformations of the same instance. While most methods treat different views of the same image as positives for a…

Computer Vision and Pattern Recognition · Computer Science 2021-10-08 Debidatta Dwibedi , Yusuf Aytar , Jonathan Tompson , Pierre Sermanet , Andrew Zisserman

The message passing-based graph neural networks (GNNs) have achieved great success in many real-world applications. However, training GNNs on large-scale graphs suffers from the well-known neighbor explosion problem, i.e., the exponentially…

Machine Learning · Computer Science 2025-03-18 Zhihao Shi , Xize Liang , Jie Wang

Many recent self-supervised frameworks for visual representation learning are based on certain forms of Siamese networks. Such networks are conceptually symmetric with two parallel encoders, but often practically asymmetric as numerous…

Computer Vision and Pattern Recognition · Computer Science 2022-04-04 Xiao Wang , Haoqi Fan , Yuandong Tian , Daisuke Kihara , Xinlei Chen

Reference-based image super-resolution (RefSR) has shown promising success in recovering high-frequency details by utilizing an external reference image (Ref). In this task, texture details are transferred from the Ref image to the…

Computer Vision and Pattern Recognition · Computer Science 2021-06-07 Liying Lu , Wenbo Li , Xin Tao , Jiangbo Lu , Jiaya Jia

We investigate contrastive learning in the federated setting through the lens of SimCLR and multi-view mutual information maximization. In doing so, we uncover a connection between contrastive representation learning and user verification;…

Machine Learning · Computer Science 2024-05-06 Christos Louizos , Matthias Reisser , Denis Korzhenkov

Siamese trackers demonstrated high performance in object tracking due to their balance between accuracy and speed. Unlike classification-based CNNs, deep similarity networks are specifically designed to address the image similarity problem,…

Computer Vision and Pattern Recognition · Computer Science 2021-03-03 Zhenxi Li , Guillaume-Alexandre Bilodeau , Wassim Bouachir

Preference learning is a widely adopted post-training technique that aligns large language models (LLMs) to human preferences and improves specific downstream task capabilities. In this work we systematically investigate how specific…

Computation and Language · Computer Science 2024-12-23 Joongwon Kim , Anirudh Goyal , Aston Zhang , Bo Xiong , Rui Hou , Melanie Kambadur , Dhruv Mahajan , Hannaneh Hajishirzi , Liang Tan

With a very rapid increase in deepfakes and digital image forgeries, ensuring the authenticity of images is becoming increasingly challenging. This report introduces a forgery detection framework that combines spatial and frequency-based…

Machine Learning · Computer Science 2025-11-11 Naman Tyagi , Riya Jain

In this paper, we tackle the task of establishing dense visual correspondences between images containing objects of the same category. This is a challenging task due to large intra-class variations and a lack of dense pixel level…

Computer Vision and Pattern Recognition · Computer Science 2020-03-27 Shuda Li , Kai Han , Theo W. Costain , Henry Howard-Jenkins , Victor Prisacariu

Existing inpainting methods have achieved promising performance for recovering regular or small image defects. However, filling in large continuous holes remains difficult due to the lack of constraints for the hole center. In this paper,…

Computer Vision and Pattern Recognition · Computer Science 2020-08-11 Jingyuan Li , Ning Wang , Lefei Zhang , Bo Du , Dacheng Tao

The paper considers independent reinforcement learning (IRL) for multi-agent decision-making process in the paradigm of federated learning (FL). We show that FL can clearly improve the policy performance of IRL in terms of training…

Machine Learning · Computer Science 2022-02-01 Xing Xu , Rongpeng Li , Zhifeng Zhao , Honggang Zhang

Non-Local Attention (NLA) brings significant improvement for Single Image Super-Resolution (SISR) by leveraging intrinsic feature correlation in natural images. However, NLA gives noisy information large weights and consumes quadratic…

Computer Vision and Pattern Recognition · Computer Science 2022-03-11 Bin Xia , Yucheng Hang , Yapeng Tian , Wenming Yang , Qingmin Liao , Jie Zhou

In recent years, deep learning-based point cloud normal estimation has made great progress. However, existing methods mainly rely on the PCPNet dataset, leading to overfitting. In addition, the correlation between point clouds with…

Computer Vision and Pattern Recognition · Computer Science 2024-06-25 Wei Jin , Jun Zhou , Nannan Li , Haba Madeline , Xiuping Liu

Neural networks have been successfully used as classification models yielding state-of-the-art results when trained on a large number of labeled samples. These models, however, are more difficult to train successfully for semi-supervised…

Machine Learning · Computer Science 2021-09-13 Attaullah Sahito , Eibe Frank , Bernhard Pfahringer

Some self-supervised cross-modal learning approaches have recently demonstrated the potential of image signals for enhancing point cloud representation. However, it remains a question on how to directly model cross-modal local and global…

Computer Vision and Pattern Recognition · Computer Science 2022-11-24 Honggu Zhou , Xiaogang Peng , Jiawei Mao , Zizhao Wu , Ming Zeng

In this paper, we study the challenging problem of multi-object tracking in a complex scene captured by a single camera. Different from the existing tracklet association-based tracking methods, we propose a novel and efficient way to obtain…

Computer Vision and Pattern Recognition · Computer Science 2016-09-27 Bing Wang , Li Wang , Bing Shuai , Zhen Zuo , Ting Liu , Kap Luk Chan , Gang Wang

Deep learning based approaches has achieved great performance in single image super-resolution (SISR). However, recent advances in efficient super-resolution focus on reducing the number of parameters and FLOPs, and they aggregate more…

Computer Vision and Pattern Recognition · Computer Science 2022-05-17 Fangyuan Kong , Mingxi Li , Songwei Liu , Ding Liu , Jingwen He , Yang Bai , Fangmin Chen , Lean Fu

Recently, Siamese networks have drawn great attention in visual tracking community because of their balanced accuracy and speed. However, features used in most Siamese tracking approaches can only discriminate foreground from the…

Computer Vision and Pattern Recognition · Computer Science 2018-08-21 Zheng Zhu , Qiang Wang , Bo Li , Wei Wu , Junjie Yan , Weiming Hu

We propose a method of aligning a source image to a target image, where the transform is specified by a dense vector field. The two images are encoded as feature hierarchies by siamese convolutional nets. Then a hierarchy of aligner modules…

Computer Vision and Pattern Recognition · Computer Science 2019-04-05 Eric Mitchell , Stefan Keselj , Sergiy Popovych , Davit Buniatyan , H. Sebastian Seung

In the same vein of discriminative one-shot learning, Siamese networks allow recognizing an object from a single exemplar with the same class label. However, they do not take advantage of the underlying structure of the data and the…

Computer Vision and Pattern Recognition · Computer Science 2019-07-16 Xingping Dong , Jianbing Shen , Dongming Wu , Kan Guo , Xiaogang Jin , Fatih Porikli
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