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Test-Time Adaptation (TTA) adjusts models using unlabeled test data to handle dynamic distribution shifts. However, existing methods rely on frequent adaptation and high computational cost, making them unsuitable for resource-constrained…

机器学习 · 计算机科学 2025-11-20 Hyeongheon Cha , Dong Min Kim , Hye Won Chung , Taesik Gong , Sung-Ju Lee

Spectral graph convolutional neural networks (CNNs) require approximation to the convolution to alleviate the computational complexity, resulting in performance loss. This paper proposes the topology adaptive graph convolutional network…

机器学习 · 计算机科学 2018-02-13 Jian Du , Shanghang Zhang , Guanhang Wu , Jose M. F. Moura , Soummya Kar

Despite their popularity, deep neural networks (DNNs) applied to time series forecasting often fail to beat simpler statistical models. One of the main causes of this suboptimal performance is the data non-stationarity present in many…

机器学习 · 计算机科学 2024-10-08 Edoardo Urettini , Daniele Atzeni , Reshawn J. Ramjattan , Antonio Carta

Steganalysis methods based on deep learning (DL) often struggle with computational complexity and challenges in generalizing across different datasets. Incorporating a graph neural network (GNN) into steganalysis schemes enables the…

密码学与安全 · 计算机科学 2025-09-29 Mustapha Hemis , Hamza Kheddar , Mohamed Chahine Ghanem , Bachir Boudraa

Recent years have seen a surge in research on dynamic graph representation learning, which aims to model temporal graphs that are dynamic and evolving constantly over time. However, current work typically models graph dynamics with…

神经与进化计算 · 计算机科学 2023-05-19 Jintang Li , Zhouxin Yu , Zulun Zhu , Liang Chen , Qi Yu , Zibin Zheng , Sheng Tian , Ruofan Wu , Changhua Meng

In dynamic graphs, preserving temporal continuity is critical. However, Memory-based Dynamic Graph Neural Networks (MDGNNs) trained with large batches often disrupt event sequences, leading to temporal information loss. This discontinuity…

机器学习 · 计算机科学 2025-06-25 Yang Zhou , Xiaoning Ren

Graph Neural Networks (GNNs) have demonstrated significant achievements in processing graph data, yet scalability remains a substantial challenge. To address this, numerous graph coarsening methods have been developed. However, most…

机器学习 · 计算机科学 2024-12-19 Shuyin Xia , Xinjun Ma , Zhiyuan Liu , Cheng Liu , Sen Zhao , Guoyin Wang

Recommender systems are essential components of modern online platforms which presents personalized content in various domain. The traditional collaborative filtering methods depends on static user-item interaction graphs and a limited…

信息检索 · 计算机科学 2026-05-08 Aadarsh Senapati , Neha Kujur , Vivek Yelleti

The k-nearest neighbors (kNN) algorithm is a cornerstone of non-parametric classification in artificial intelligence, yet its deployment in large-scale applications is persistently constrained by the computational trade-off between…

机器学习 · 计算机科学 2026-01-26 Jiaye Li , Gang Chen , Hang Xu , Shichao Zhang

Temporal graphs are widely used to model dynamic systems with time-varying interactions. In real-world scenarios, the underlying mechanisms of generating future interactions in dynamic systems are typically governed by a set of recurring…

机器学习 · 计算机科学 2023-10-31 Jialin Chen , Rex Ying

Graph neural networks (GNNs) learn node representations by passing and aggregating messages between neighboring nodes. GNNs have been applied successfully in several application domains and achieved promising performance. However, GNNs…

机器学习 · 计算机科学 2021-12-14 Zeyu Zhang , Yulong Pei

Textual graphs (TGs) are graphs whose nodes correspond to text (sentences or documents), which are widely prevalent. The representation learning of TGs involves two stages: (i) unsupervised feature extraction and (ii) supervised graph…

计算与语言 · 计算机科学 2023-08-08 Keyu Duan , Qian Liu , Tat-Seng Chua , Shuicheng Yan , Wei Tsang Ooi , Qizhe Xie , Junxian He

The era of "data deluge" has sparked renewed interest in graph-based learning methods and their widespread applications ranging from sociology and biology to transportation and communications. In this context of graph-aware methods, the…

机器学习 · 计算机科学 2020-12-30 Vassilis N. Ioannidis , Antonio G. Marques , Georgios B. Giannakis

Graph anomaly detection (GAD), which aims to detect outliers in graph-structured data, has received increasing research attention recently. However, existing GAD methods assume identical training and testing distributions, which is rarely…

机器学习 · 计算机科学 2025-11-11 Junjun Pan , Yixin Liu , Chuan Zhou , Fei Xiong , Alan Wee-Chung Liew , Shirui Pan

Spiking Neural Networks (SNNs) are inherently suited for continuous learning due to their event-driven temporal dynamics; however, their application to Class-Incremental Learning (CIL) has been hindered by catastrophic forgetting and the…

Representation learning algorithms automatically learn the features of data. Several representation learning algorithms for graph data, such as DeepWalk, node2vec, and GraphSAGE, sample the graph to produce mini-batches that are suitable…

分布式、并行与集群计算 · 计算机科学 2021-05-12 Abhinav Jangda , Sandeep Polisetty , Arjun Guha , Marco Serafini

Deep neural networks (DNNs) exhibit great success on many tasks with the help of large-scale well annotated datasets. However, labeling large-scale data can be very costly and error-prone so that it is difficult to guarantee the annotation…

机器学习 · 计算机科学 2020-07-02 Dongxian Wu , Yisen Wang , Zhuobin Zheng , Shu-tao Xia

Graph simulation has recently received a surge of attention in graph processing and analytics. In real-life applications, e.g. social science, biology, and chemistry, many graphs are composed of a series of evolving graphs (i.e., temporal…

机器学习 · 计算机科学 2025-10-08 Sheng Xiang , Chenhao Xu , Dawei Cheng , Xiaoyang Wang , Ying Zhang

Future link prediction is a fundamental challenge in various real-world dynamic systems. To address this, numerous temporal graph neural networks (temporal GNNs) and benchmark datasets have been developed. However, these datasets often…

机器学习 · 计算机科学 2025-03-18 Lu Yi , Jie Peng , Yanping Zheng , Fengran Mo , Zhewei Wei , Yuhang Ye , Yue Zixuan , Zengfeng Huang

In the context of multi-view clustering, graph learning is recognized as a crucial technique, which generally involves constructing an adaptive neighbor graph based on probabilistic neighbors, and then learning a consensus graph for…

机器学习 · 计算机科学 2025-07-08 Long Shi , Lei Cao , Yunshan Ye , Yu Zhao , Badong Chen