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The graph Hilbert transform (GHT) is a key tool in constructing analytic signals and extracting envelope and phase information in graph signal processing. However, its utility is limited by confinement to the graph Fourier domain, a fixed…

Signal Processing · Electrical Eng. & Systems 2025-09-23 Daxiang Li , Zhichao Zhang

In asymmetric retrieval systems, models with different capacities are deployed on platforms with different computational and storage resources. Despite the great progress, existing approaches still suffer from a dilemma between retrieval…

Image and Video Processing · Electrical Eng. & Systems 2024-03-04 Hui Wu , Min Wang , Wengang Zhou , Zhenbo Lu , Houqiang Li

Discrepancy between training and testing domains is a fundamental problem in the generalization of machine learning techniques. Recently, several approaches have been proposed to learn domain invariant feature representations through…

Machine Learning · Statistics 2019-03-18 Yitong Li , Michael Murias , Samantha Major , Geraldine Dawson , David E. Carlson

Bi-type multi-relational heterogeneous graph (BMHG) is one of the most common graphs in practice, for example, academic networks, e-commerce user behavior graph and enterprise knowledge graph. It is a critical and challenge problem on how…

Machine Learning · Computer Science 2022-02-01 Yu Zhao , Shaopeng Wei , Huaming Du , Xingyan Chen , Qing Li , Fuzhen Zhuang , Ji Liu , Gang Kou

Image-to-image translation (IIT) has made much progress recently with the development of adversarial learning. In most of the recent work, an adversarial loss is utilized to match the distributions of the translated and target image sets.…

Computer Vision and Pattern Recognition · Computer Science 2020-09-03 Ibrahim Batuhan Akkaya , Ugur Halici

Generalized zero-shot learning (GZSL) tackles the problem of learning to classify instances involving both seen classes and unseen ones. The key issue is how to effectively transfer the model learned from seen classes to unseen classes.…

Machine Learning · Computer Science 2019-11-21 Junjie Wang , Xiangfeng Wang , Bo Jin , Junchi Yan , Wenjie Zhang , Hongyuan Zha

In this paper, we propose a novel framework to automatically utilize task-dependent semantic information which is encoded in heterogeneous information networks (HINs). Specifically, we search for a meta graph, which can capture more complex…

Machine Learning · Computer Science 2021-09-28 Yuhui Ding , Quanming Yao , Huan Zhao , Tong Zhang

Recently there is a growing focus on graph data, and multi-view graph clustering has become a popular area of research interest. Most of the existing methods are only applicable to homophilous graphs, yet the extensive real-world graph data…

Machine Learning · Computer Science 2024-01-08 Zichen Wen , Yawen Ling , Yazhou Ren , Tianyi Wu , Jianpeng Chen , Xiaorong Pu , Zhifeng Hao , Lifang He

High Dynamic Range (HDR) imaging via multi-exposure fusion is an important task for most modern imaging platforms. In spite of recent developments in both hardware and algorithm innovations, challenges remain over content association…

Image and Video Processing · Electrical Eng. & Systems 2022-04-13 Jie Chen , Zaifeng Yang , Tsz Nam Chan , Hui Li , Junhui Hou , Lap-Pui Chau

When there is a distributional shift between data used to train a predictive algorithm and current data, performance can suffer. This is known as the domain adaptation problem. Bootstrap aggregating, or bagging, is a popular method for…

Methodology · Statistics 2020-06-17 Meimei Liu , David B. Dunson

Unsupervised domain adaptation enables to alleviate the need for pixel-wise annotation in the semantic segmentation. One of the most common strategies is to translate images from the source domain to the target domain and then align their…

Computer Vision and Pattern Recognition · Computer Science 2020-08-25 Jinyu Yang , Weizhi An , Sheng Wang , Xinliang Zhu , Chaochao Yan , Junzhou Huang

Unsupervised efficient domain adaptive retrieval aims to transfer knowledge from a labeled source domain to an unlabeled target domain, while maintaining low storage cost and high retrieval efficiency. However, existing methods typically…

Machine Learning · Computer Science 2025-05-21 Junyu Luo , Yusheng Zhao , Xiao Luo , Zhiping Xiao , Wei Ju , Li Shen , Dacheng Tao , Ming Zhang

Graph neural networks (GNNs) excel on homophilic graphs where connected nodes share labels, but struggle with heterophilic graphs where edges do not imply similarity. Moreover, iterative message passing limits scalability due to…

Machine Learning · Computer Science 2026-02-16 Turja Kundu , Sanjukta Bhowmick

$\textbf{Graph Coarsening (GC)}$ is a prominent graph reduction technique that compresses large graphs to enable efficient learning and inference. However, existing GC methods generate only one coarsened graph per run and must recompute…

Social and Information Networks · Computer Science 2025-05-23 Mohit Kataria , Shreyash Bhilwade , Sandeep Kumar , Jayadeva

Hyperspectral image (HSI) classification presents inherent challenges due to high spectral dimensionality, significant domain shifts, and limited availability of labeled data. To address these issues, we propose a novel Active Transfer…

Computer Vision and Pattern Recognition · Computer Science 2025-08-05 Muhammad Ahmad , Francesco Mauro , Manuel Mazzara , Salvatore Distefano , Adil Mehmood Khan , Silvia Liberata Ullo

Most few-shot learning works rely on the same domain assumption between the base and the target tasks, hindering their practical applications. This paper proposes an adaptive transformer network (ADAPTER), a simple but effective solution…

Machine Learning · Computer Science 2024-01-26 Naeem Paeedeh , Mahardhika Pratama , Muhammad Anwar Ma'sum , Wolfgang Mayer , Zehong Cao , Ryszard Kowlczyk

Many real-world graphs (networks) are heterogeneous with different types of nodes and edges. Heterogeneous graph embedding, aiming at learning the low-dimensional node representations of a heterogeneous graph, is vital for various…

Social and Information Networks · Computer Science 2021-12-15 Wentao Xu , Yingce Xia , Weiqing Liu , Jiang Bian , Jian Yin , Tie-Yan Liu

With the advancement of information technology, the Social Internet of Things (SIoT) has fostered the integration of physical devices and social networks, deepening the study of complex interaction patterns. Text Attribute Graphs (TAGs)…

Artificial Intelligence · Computer Science 2025-01-20 Mengran Li , Junzhou Chen , Chenyun Yu , Guanying Jiang , Ronghui Zhang , Yanming Shen , Houbing Herbert Song

We propose a universal background subtraction framework based on the Arithmetic Distribution Neural Network (ADNN) for learning the distributions of temporal pixels. In our ADNN model, the arithmetic distribution operations are utilized to…

Computer Vision and Pattern Recognition · Computer Science 2024-10-28 Chenqiu Zhao , Kangkang Hu , Anup Basu

Data-free knowledge distillation transfers knowledge by recovering training data from a pre-trained model. Despite the recent success of seeking global data diversity, the diversity within each class and the similarity among different…

Computer Vision and Pattern Recognition · Computer Science 2024-12-17 Yingping Liang , Ying Fu