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Fine-grained visual classification aims to recognize images belonging to multiple sub-categories within a same category. It is a challenging task due to the inherently subtle variations among highly-confused categories. Most existing…

Computer Vision and Pattern Recognition · Computer Science 2021-08-31 Tian Zhang , Dongliang Chang , Zhanyu Ma , Jun Guo

Connectionist Temporal Classification (CTC) and attention mechanism are two main approaches used in recent scene text recognition works. Compared with attention-based methods, CTC decoder has a much shorter inference time, yet a lower…

Computer Vision and Pattern Recognition · Computer Science 2020-02-05 Wenyang Hu , Xiaocong Cai , Jun Hou , Shuai Yi , Zhiping Lin

Graph augmentations are essential for graph contrastive learning. Most existing works use pre-defined random augmentations, which are usually unable to adapt to different input graphs and fail to consider the impact of different nodes and…

Machine Learning · Computer Science 2023-03-28 Yifu Chen , Qianqian Ren , Liu Yong

This paper addresses the problem of cross-season visual place classification (VPC) from a novel perspective of long-term map learning. Our goal is to enable transfer learning efficiently from one season to the next, at a small constant…

Computer Vision and Pattern Recognition · Computer Science 2017-09-19 Xiaoxiao Fei , Kanji Tanaka , Yichu Fang , Akitaka Takayama

Recent studies show that graph convolutional network (GCN) often performs worse for low-degree nodes, exhibiting the so-called structural unfairness for graphs with long-tailed degree distributions prevalent in the real world. Graph…

Machine Learning · Computer Science 2022-10-07 Ruijia Wang , Xiao Wang , Chuan Shi , Le Song

We propose $\textbf{MGCL}$, a model-driven graph contrastive learning (GCL) framework that leverages graphons (probabilistic generative models for graphs) to guide contrastive learning by accounting for the data's underlying generative…

Machine Learning · Computer Science 2025-06-09 Ali Azizpour , Nicolas Zilberstein , Santiago Segarra

In this study, we present the Graph Sub-Graph Network (GSN), a novel hybrid image classification model merging the strengths of Convolutional Neural Networks (CNNs) for feature extraction and Graph Neural Networks (GNNs) for structural…

Computer Vision and Pattern Recognition · Computer Science 2024-10-01 Aryan Singh , Pepijn Van de Ven , Ciarán Eising , Patrick Denny

Road network and trajectory representation learning are essential for traffic systems since the learned representation can be directly used in various downstream tasks (e.g., traffic speed inference, and travel time estimation). However,…

Machine Learning · Computer Science 2023-02-14 Zhenyu Mao , Ziyue Li , Dedong Li , Lei Bai , Rui Zhao

Data augmentation aims to generate new and synthetic features from the original data, which can identify a better representation of data and improve the performance and generalizability of downstream tasks. However, data augmentation for…

Machine Learning · Computer Science 2021-06-17 Zhengzheng Tang , Ziyue Qiao , Xuehai Hong , Yang Wang , Fayaz Ali Dharejo , Yuanchun Zhou , Yi Du

Heterogeneous graph neural network (HGNN) is a very popular technique for the modeling and analysis of heterogeneous graphs. Most existing HGNN-based approaches are supervised or semi-supervised learning methods requiring graphs to be…

Machine Learning · Computer Science 2023-11-17 Cuiying Huo , Dongxiao He , Yawen Li , Di Jin , Jianwu Dang , Weixiong Zhang , Witold Pedrycz , Lingfei Wu

Nuclei classification is a critical step in computer-aided diagnosis with histopathology images. In the past, various methods have employed graph neural networks (GNN) to analyze cell graphs that model inter-cell relationships by…

Computer Vision and Pattern Recognition · Computer Science 2024-02-21 Wei Lou , Guanbin Li , Xiang Wan , Haofeng Li

Recent advances in generative deep learning have enabled the creation of high-quality synthetic images in text-to-image generation. Prior work shows that fine-tuning a pretrained diffusion model on ImageNet and generating synthetic training…

Computer Vision and Pattern Recognition · Computer Science 2025-01-22 Zhuoran Yu , Chenchen Zhu , Sean Culatana , Raghuraman Krishnamoorthi , Fanyi Xiao , Yong Jae Lee

Deep neural networks require a large amount of labeled training data during supervised learning. However, collecting and labeling so much data might be infeasible in many cases. In this paper, we introduce a source-target selective joint…

Computer Vision and Pattern Recognition · Computer Science 2018-03-06 Weifeng Ge , Yizhou Yu

This work exploits translation data as a source of semantically relevant learning signal for models of word representation. In particular, we exploit equivalence through translation as a form of distributed context and jointly learn how to…

Computation and Language · Computer Science 2018-04-24 Miguel Rios , Wilker Aziz , Khalil Sima'an

The use of deep neural networks in edge computing devices hinges on the balance between accuracy and complexity of computations. Ternary Connect (TC) \cite{lin2015neural} addresses this issue by restricting the parameters to three levels…

Machine Learning · Computer Science 2018-11-14 Samyak Parajuli , Aswin Raghavan , Sek Chai

Current medical image synthetic augmentation techniques rely on intensive use of generative adversarial networks (GANs). However, the nature of GAN architecture leads to heavy computational resources to produce synthetic images and the…

Image and Video Processing · Electrical Eng. & Systems 2022-12-21 Meng Li , Brian Lovell

Graph Neural Networks (GNNs) have achieved tremendous success in graph representation learning. Unfortunately, current GNNs usually rely on loading the entire attributed graph into network for processing. This implicit assumption may not be…

Machine Learning · Computer Science 2022-02-15 Junfu Wang , Yunhong Wang , Zhen Yang , Liang Yang , Yuanfang Guo

We extensively study how to combine Generative Adversarial Networks and learned compression to obtain a state-of-the-art generative lossy compression system. In particular, we investigate normalization layers, generator and discriminator…

Image and Video Processing · Electrical Eng. & Systems 2020-10-26 Fabian Mentzer , George Toderici , Michael Tschannen , Eirikur Agustsson

Scattering networks are a class of designed Convolutional Neural Networks (CNNs) with fixed weights. We argue they can serve as generic representations for modelling images. In particular, by working in scattering space, we achieve…

Remarkable progress in zero-shot learning (ZSL) has been achieved using generative models. However, existing generative ZSL methods merely generate (imagine) the visual features from scratch guided by the strong class semantic vectors…

Computer Vision and Pattern Recognition · Computer Science 2025-05-20 Shiming Chen , Dingjie Fu , Salman Khan , Fahad Shahbaz Khan