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Due to the superior performance of Graph Neural Networks (GNNs) in various domains, there is an increasing interest in the GNN explanation problem "\emph{which fraction of the input graph is the most crucial to decide the model's…

机器学习 · 计算机科学 2022-07-04 Qinghua Zheng , Jihong Wang , Minnan Luo , Yaoliang Yu , Jundong Li , Lina Yao , Xiaojun Chang

Collaborative edge sensing systems, particularly in collaborative perception systems in autonomous driving, can significantly enhance tracking accuracy and reduce blind spots with multi-view sensing capabilities. However, their limited…

网络与互联网体系结构 · 计算机科学 2024-09-02 Zhengru Fang , Senkang Hu , Liyan Yang , Yiqin Deng , Xianhao Chen , Yuguang Fang

This paper introduces a novel perspective to significantly mitigate catastrophic forgetting in continuous learning (CL), which emphasizes models' capacity to preserve existing knowledge and assimilate new information. Current replay-based…

机器学习 · 计算机科学 2024-04-10 Jianshu Zhang , Yankai Fu , Ziheng Peng , Dongyu Yao , Kun He

Modern applications require lightweight neural network models. Most existing neural network pruning methods focus on removing unimportant filters; however, these may result in the loss of statistical information after pruning due to failing…

计算机视觉与模式识别 · 计算机科学 2026-03-24 Xiang Liu , Mingchen Li , Xia Li , Leigang Qu , Guansu Wang , Zifan Peng , Yijun Song , Zemin Liu , Linshan Jiang , Jialin Li

For knowledge graph completion, two major types of prediction models exist: one based on graph embeddings, and the other based on relation path rule induction. They have different advantages and disadvantages. To take advantage of both…

机器学习 · 计算机科学 2021-11-02 Yushi Hirose , Masashi Shimbo , Taro Watanabe

This paper leverages the framework of algorithms-with-predictions to design data structures for two fundamental dynamic graph problems: incremental topological ordering and cycle detection. In these problems, the input is a directed graph…

数据结构与算法 · 计算机科学 2024-02-20 Samuel McCauley , Benjamin Moseley , Aidin Niaparast , Shikha Singh

Graph contrastive learning (GCL) has recently achieved substantial advancements. Existing GCL approaches compare two different ``views'' of the same graph in order to learn node/graph representations. The underlying assumption of these…

机器学习 · 计算机科学 2024-01-18 Gehang Zhang , Bowen Yu , Jiangxia Cao , Xinghua Zhang , Jiawei Sheng , Chuan Zhou , Tingwen Liu

Contrastive learning (CL) has shown great power in self-supervised learning due to its ability to capture insight correlations among large-scale data. Current CL models are biased to learn only the ability to discriminate positive and…

计算机视觉与模式识别 · 计算机科学 2022-11-17 Ziwen Liu , Bonan Li , Congying Han , Tiande Guo , Xuecheng Nie

Large language models (LLMs) have recently demonstrated remarkable progress in reasoning capabilities through reinforcement learning with verifiable rewards (RLVR). By leveraging simple rule-based rewards, RL effectively incentivizes LLMs…

人工智能 · 计算机科学 2025-07-25 Shiye Lei , Zhihao Cheng , Kai Jia , Dacheng Tao

Graph Neural Networks (GNNs) are prominent in graph machine learning and have shown state-of-the-art performance in Link Prediction (LP) tasks. Nonetheless, recent studies show that GNNs struggle to produce good results on low-degree nodes…

机器学习 · 计算机科学 2025-08-05 Zhichun Guo , Tong Zhao , Yozen Liu , Kaiwen Dong , William Shiao , Mingxuan Ju , Neil Shah , Nitesh V. Chawla

Promoting the connectivity of curvilinear structures, such as neuronal processes in biomedical scans and blood vessels in CT images, remains a key challenge in semantic segmentation. Traditional pixel-wise loss functions, including…

计算机视觉与模式识别 · 计算机科学 2026-01-29 Elyar Esmaeilzadeh , Ehsan Garaaghaji , Farzad Hallaji Azad , Doruk Oner

Learning the right graph representation from noisy, multi-source data has garnered significant interest in recent years. A central tenet of this problem is relational learning. Here the objective is to incorporate the partial information…

机器学习 · 计算机科学 2014-05-14 Jeremy Kun , Rajmonda Caceres , Kevin Carter

Large Language Models (LLMs) have shown promising results on various language and vision tasks. Recently, there has been growing interest in applying LLMs to graph-based tasks, particularly on Text-Attributed Graphs (TAGs). However, most…

机器学习 · 计算机科学 2024-06-10 Zhongmou He , Jing Zhu , Shengyi Qian , Joyce Chai , Danai Koutra

Graph Neural Networks (GNNs) have demonstrated significant success in learning from graph-structured data but often struggle on heterophilous graphs, where connected nodes differ in features or class labels. This limitation arises from…

机器学习 · 计算机科学 2025-09-30 Zhongtian Sun , Anoushka Harit , Alexandra Cristea , Christl A. Donnelly , Pietro Liò

Large language models have become integral to question-answering applications despite their propensity for generating hallucinations and factually inaccurate content. Querying knowledge graphs to reduce hallucinations in LLM meets the…

计算与语言 · 计算机科学 2024-06-26 Tong Zhou , Yubo Chen , Kang Liu , Jun Zhao

Knowledge Graphs (KGs) have found many applications in industry and academic settings, which in turn, have motivated considerable research efforts towards large-scale information extraction from a variety of sources. Despite such efforts,…

机器学习 · 计算机科学 2021-01-25 Andrea Rossi , Donatella Firmani , Antonio Matinata , Paolo Merialdo , Denilson Barbosa

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…

机器学习 · 计算机科学 2024-02-13 Lorenzo Giusti

Heterogeneous Graph Neural Networks(HGNNs) have advanced mainly through better encoders, yet their decoding/projection stage still relies on a single shared linear head, assuming it can map rich node embeddings to labels. We call this the…

机器学习 · 计算机科学 2026-01-12 Wei Zhou , Hong Huang , Ruize Shi , Bang Liu

Kernel and linear regression have been recently explored in the prediction of graph signals as the output, given arbitrary input signals that are agnostic to the graph. In many real-world problems, the graph expands over time as new nodes…

机器学习 · 计算机科学 2019-11-27 Arun Venkitaraman , Saikat Chatterjee , Bo Wahlberg

We consider the problem of classifying data manifolds where each manifold represents invariances that are parameterized by continuous degrees of freedom. Conventional data augmentation methods rely upon sampling large numbers of training…

机器学习 · 计算机科学 2018-10-01 SueYeon Chung , Uri Cohen , Haim Sompolinsky , Daniel D. Lee