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Related papers: Task-Oriented Communication for Graph Data: A Grap…

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Task-oriented communication aims to extract and transmit task-relevant information to significantly reduce the communication overhead and transmission latency. However, the unpredictable distribution shifts between training and test data,…

Signal Processing · Electrical Eng. & Systems 2024-05-16 Hongru Li , Jiawei Shao , Hengtao He , Shenghui Song , Jun Zhang , Khaled B. Letaief

Graph Neural Networks (GNNs) have achieved great success in modeling graph-structured data. However, recent works show that GNNs are vulnerable to adversarial attacks which can fool the GNN model to make desired predictions of the attacker.…

Machine Learning · Computer Science 2023-06-16 Enyan Dai , Limeng Cui , Zhengyang Wang , Xianfeng Tang , Yinghan Wang , Monica Cheng , Bing Yin , Suhang Wang

Recent studies have revealed that GNNs are vulnerable to adversarial attacks. Most existing robust graph learning methods measure model robustness based on label information, rendering them infeasible when label information is not…

Machine Learning · Computer Science 2023-06-09 Jihong Wang , Minnan Luo , Jundong Li , Ziqi Liu , Jun Zhou , Qinghua Zheng

Out-of-distribution (OOD) graph generalization are critical for many real-world applications. Existing methods neglect to discard spurious or noisy features of inputs, which are irrelevant to the label. Besides, they mainly conduct…

Machine Learning · Computer Science 2023-06-29 Ling Yang , Jiayi Zheng , Heyuan Wang , Zhongyi Liu , Zhilin Huang , Shenda Hong , Wentao Zhang , Bin Cui

Task-oriented communication is an emerging paradigm for next-generation communication networks, which extracts and transmits task-relevant information, instead of raw data, for downstream applications. Most existing deep learning (DL)-based…

Signal Processing · Electrical Eng. & Systems 2024-02-07 Hongru Li , Wentao Yu , Hengtao He , Jiawei Shao , Shenghui Song , Jun Zhang , Khaled B. Letaief

Task-oriented semantic communication emerges as a crucial paradigm for next-generation wireless networks, aiming to efficiently transmit task-relevant information while reducing interference and redundancy across multiple users. Existing…

Signal Processing · Electrical Eng. & Systems 2026-04-14 Jiaxiang Wang , Zhaohui Yang , Yahao Ding , Ye Hu , Mohammad Shikh-Bahaei

We introduce Graph Concept Bottleneck (GCB) as a new paradigm for self-explainable text-attributed graph learning. GCB maps graphs into a subspace, concept bottleneck, where each concept is a meaningful phrase, and predictions are made…

Machine Learning · Computer Science 2026-04-15 Xiaoxue Han , Libo Zhang , Zining Zhu , Yue Ning

Graph Neural Networks (GNNs) have received increasing attention due to their ability to learn from graph-structured data. To open the black-box of these deep learning models, post-hoc instance-level explanation methods have been proposed to…

Machine Learning · Computer Science 2024-02-08 Rundong Huang , Farhad Shirani , Dongsheng Luo

Molecular dynamics simulations offer detailed insights into atomic motions but face timescale limitations. Enhanced sampling methods have addressed these challenges but even with machine learning, they often rely on pre-selected…

Machine Learning · Computer Science 2024-09-19 Ziyue Zou , Dedi Wang , Pratyush Tiwary

Deep neural networks (DNNs) have demonstrated remarkable performance across various domains, but their inherent complexity makes them challenging to interpret. This is especially true for temporal graph regression tasks due to the complex…

Machine Learning · Computer Science 2025-12-30 Ali Royat , Seyed Mohamad Moghadas , Lesley De Cruz , Adrian Munteanu

With the rapid emergence of multi-behavior learning in recommender systems, leveraging auxiliary user behaviors has proven effective for mitigating target-behavior data sparsity. Yet auxiliary behavior graphs frequently contain noisy or…

Information Retrieval · Computer Science 2026-05-26 Likang Wu , Zihao Chen , Jianxin Zhang , Sangqi Zhu , Yuanyuan Ge , Haipeng Yang , Lei Zhang

Temporal Graph Neural Networks (TGNN) have the ability to capture both the graph topology and dynamic dependencies of interactions within a graph over time. There has been a growing need to explain the predictions of TGNN models due to the…

Machine Learning · Computer Science 2024-06-21 Sangwoo Seo , Sungwon Kim , Jihyeong Jung , Yoonho Lee , Chanyoung Park

Graph regression is a fundamental task that has gained significant attention in various graph learning tasks. However, the inference process is often not easily interpretable. Current explanation techniques are limited to understanding…

Machine Learning · Computer Science 2024-10-25 Jiaxing Zhang , Zhuomin Chen , Hao Mei , Longchao Da , Dongsheng Luo , Hua Wei

Training Graph Neural Networks (GNNs) on large graphs presents unique challenges due to the large memory and computing requirements. Distributed GNN training, where the graph is partitioned across multiple machines, is a common approach to…

Machine Learning · Computer Science 2024-06-26 Juan Cervino , Md Asadullah Turja , Hesham Mostafa , Nageen Himayat , Alejandro Ribeiro

This study aims to build a pre-trained Graph Neural Network (GNN) model on molecules without human annotations or prior knowledge. Although various attempts have been proposed to overcome limitations in acquiring labeled molecules, the…

Machine Learning · Computer Science 2024-12-23 Van Thuy Hoang , O-Joun Lee

Graph condensation (GC), which reduces the size of a large-scale graph by synthesizing a small-scale condensed graph as its substitution, has benefited various graph learning tasks. However, existing GC methods rely on centralized data…

Machine Learning · Computer Science 2024-12-23 Bo Yan , Sihao He , Cheng Yang , Shang Liu , Yang Cao , Chuan Shi

The Information Bottleneck (IB) method is an information theoretical framework to design a parsimonious and tunable feature-extraction mechanism, such that the extracted features are maximally relevant to a specific learning or inference…

Signal Processing · Electrical Eng. & Systems 2024-04-17 Francesco Binucci , Paolo Banelli , Paolo Di Lorenzo , Sergio Barbarossa

Although link prediction on graphs has achieved great success with the development of graph neural networks (GNNs), the potential robustness under the edge noise is still less investigated. To close this gap, we first conduct an empirical…

Machine Learning · Computer Science 2023-11-03 Zhanke Zhou , Jiangchao Yao , Jiaxu Liu , Xiawei Guo , Quanming Yao , Li He , Liang Wang , Bo Zheng , Bo Han

The irreducible complexity of natural phenomena has led Graph Neural Networks to be employed as a standard model to perform representation learning tasks on graph-structured data. While their capacity to capture local and global patterns is…

Machine Learning · Computer Science 2024-02-13 Lorenzo Giusti

Graph Neural Networks (GNNs) suffer from over-squashing in deep message passing, where information from exponentially growing neighborhoods is compressed into fixed-dimensional representations. We show that this issue becomes a distinct…

Machine Learning · Computer Science 2026-05-15 Chaokai Wu , Haofu Shi , Ningxuan Ma , Jianghong Ma , Xiaofeng Zhang