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Advanced graph neural networks have shown great potentials in graph classification tasks recently. Different from node classification where node embeddings aggregated from local neighbors can be directly used to learn node labels, graph…

机器学习 · 计算机科学 2022-03-16 Hao Jia , Junzhong Ji , Minglong Lei

Due to the limited amount and imbalanced classes of labeled training data, the conventional supervised learning can not ensure the discrimination of the learned feature for hyperspectral image (HSI) classification. In this paper, we propose…

计算机视觉与模式识别 · 计算机科学 2018-09-06 Yan Ju , Lingling Li , Licheng Jiao , Zhongle Ren , Biao Hou , Shuyuan Yang

In this paper, we propose a novel self-supervised representation learning by taking advantage of a neighborhood-relational encoding (NRE) among the training data. Conventional unsupervised learning methods only focused on training deep…

计算机视觉与模式识别 · 计算机科学 2019-08-29 Mohammad Sabokrou , Mohammad Khalooei , Ehsan Adeli

Deep Convolutional Neural Networks (CNN) enforces supervised information only at the output layer, and hidden layers are trained by back propagating the prediction error from the output layer without explicit supervision. We propose a…

计算机视觉与模式识别 · 计算机科学 2016-06-07 Zhuolin Jiang , Yaming Wang , Larry Davis , Walt Andrews , Viktor Rozgic

Recent years, graph contrastive learning (GCL), which aims to learn representations from unlabeled graphs, has made great progress. However, the existing GCL methods mostly adopt human-designed graph augmentations, which are sensitive to…

社会与信息网络 · 计算机科学 2023-06-30 Xiao Shen , Dewang Sun , Shirui Pan , Xi Zhou , Laurence T. Yang

Hyperspectral Image (HSI) classification using Convolutional Neural Networks (CNN) is widely found in the current literature. Approaches vary from using SVMs to 2D CNNs, 3D CNNs, 3D-2D CNNs. Besides 3D-2D CNNs and FuSENet, the other…

图像与视频处理 · 电气工程与系统科学 2021-04-02 Tanmay Chakraborty , Utkarsh Trehan

Convolutional neural networks (CNNs) have been widely used for hyperspectral image classification. As a common process, small cubes are firstly cropped from the hyperspectral image and then fed into CNNs to extract spectral and spatial…

图像与视频处理 · 电气工程与系统科学 2020-06-15 Renlong Hang , Zhu Li , Qingshan Liu , Pedram Ghamisi , Shuvra S. Bhattacharyya

Hyperspectral image (HSI) classification is challenging due to spatial variability caused by complex imaging conditions. Prior methods suffer from limited representation ability, as they train specially designed networks from scratch on…

计算机视觉与模式识别 · 计算机科学 2023-05-17 Di Wang , Jing Zhang , Bo Du , Liangpei Zhang , Dacheng Tao

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…

机器学习 · 计算机科学 2023-11-17 Cuiying Huo , Dongxiao He , Yawen Li , Di Jin , Jianwu Dang , Weixiong Zhang , Witold Pedrycz , Lingfei Wu

Hyperspectral image (HSI) denoising is a crucial preprocessing procedure to improve the performance of the subsequent HSI interpretation and applications. In this paper, a novel deep learning-based method for this task is proposed, by…

计算机视觉与模式识别 · 计算机科学 2018-08-14 Qiangqiang Yuan , Qiang Zhang , Jie Li , Huanfeng Shen , Liangpei Zhang

Graph Neural Networks (GNNs) have achieved promising performance in semi-supervised node classification in recent years. However, the problem of insufficient supervision, together with representation collapse, largely limits the performance…

机器学习 · 计算机科学 2025-03-07 Xihong Yang , Yiqi Wang , Yue Liu , Yi Wen , Lingyuan Meng , Sihang Zhou , Xinwang Liu , En Zhu

Recently, deep learning techniques have been extensively studied for pansharpening, which aims to generate a high resolution multispectral (HRMS) image by fusing a low resolution multispectral (LRMS) image with a high resolution…

计算机视觉与模式识别 · 计算机科学 2022-04-12 Xiangyong Cao , Yang Chen , Wenfei Cao

Learnable keypoint detectors and descriptors are beginning to outperform classical hand-crafted feature extraction methods. Recent studies on self-supervised learning of visual representations have driven the increasing performance of…

计算机视觉与模式识别 · 计算机科学 2022-07-12 Henrique Siqueira , Patrick Ruhkamp , Ibrahim Halfaoui , Markus Karmann , Onay Urfalioglu

As a seminal tool in self-supervised representation learning, contrastive learning has gained unprecedented attention in recent years. In essence, contrastive learning aims to leverage pairs of positive and negative samples for…

机器学习 · 计算机科学 2022-02-01 Ching-Yun Ko , Jeet Mohapatra , Sijia Liu , Pin-Yu Chen , Luca Daniel , Lily Weng

Heterogeneous Graphs (HGs) effectively model complex relationships in the real world through multi-type nodes and edges. In recent years, inspired by self-supervised learning (SSL), contrastive learning (CL)-based Heterogeneous Graphs…

机器学习 · 计算机科学 2025-05-06 Yu Wang , Lei Sang , Yi Zhang , Yiwen Zhang , Xindong Wu

Recently, graph collaborative filtering methods have been proposed as an effective recommendation approach, which can capture users' preference over items by modeling the user-item interaction graphs. In order to reduce the influence of…

信息检索 · 计算机科学 2022-02-16 Zihan Lin , Changxin Tian , Yupeng Hou , Wayne Xin Zhao

The integration of hyperspectral imaging (HSI) and LiDAR data within new linear feature spaces offers a promising solution to the challenges posed by the high-dimensionality and redundancy inherent in HSIs. This study introduces a dual…

计算机视觉与模式识别 · 计算机科学 2024-12-04 Judy X Yang , Jing Wang , Chen Hong Sui , Zekun Long , Jun Zhou

In this paper, we address the dataset scarcity issue with the hyperspectral image classification. As only a few thousands of pixels are available for training, it is difficult to effectively learn high-capacity Convolutional Neural Networks…

计算机视觉与模式识别 · 计算机科学 2018-05-04 Hyungtae Lee , Sungmin Eum , Heesung Kwon

Deep convolutional neural networks (CNNs) have demonstrated remarkable success in computer vision by supervisedly learning strong visual feature representations. However, training CNNs relies heavily on the availability of exhaustive…

计算机视觉与模式识别 · 计算机科学 2019-05-31 Jiabo Huang , Qi Dong , Shaogang Gong , Xiatian Zhu

Recent research has shown the great potential of deep learning algorithms in the hyperspectral image (HSI) classification task. Nevertheless, training these models usually requires a large amount of labeled data. Since the collection of…

计算机视觉与模式识别 · 计算机科学 2023-08-09 Yonghao Xu , Bo Du , Liangpei Zhang