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Graph Neural Networks (GNNs) are widely adopted in Web-related applications, serving as a core technique for learning from graph-structured data, such as text-attributed graphs. Yet in real-world scenarios, such graphs exhibit deficiencies…

Machine Learning · Computer Science 2025-10-03 Zhaoyan Wang , Zheng Gao , Arogya Kharel , In-Young Ko

Graph Neural Networks (GNNs) have evolved to understand graph structures through recursive exchanges and aggregations among nodes. To enhance robustness, self-supervised learning (SSL) has become a vital tool for data augmentation.…

Computation and Language · Computer Science 2024-05-08 Jiabin Tang , Yuhao Yang , Wei Wei , Lei Shi , Lixin Su , Suqi Cheng , Dawei Yin , Chao Huang

We explore the node classification task in the context of graph domain adaptation, which uses both source and target graph structures along with source labels to enhance the generalization capabilities of Graph Neural Networks (GNNs) on…

Machine Learning · Computer Science 2025-12-15 Haiyang Yu , Meng-Chieh Lee , Xiang song , Qi Zhu , Christos Faloutsos

Graph-based retrieval-augmented generation (RAG) enables large language models (LLMs) to ground responses with structured external knowledge from up-to-date knowledge graphs (KGs) and reduce hallucinations. However, LLMs often rely on a…

Computation and Language · Computer Science 2025-07-01 Deyu Zou , Yongqiang Chen , Mufei Li , Siqi Miao , Chenxi Liu , Bo Han , James Cheng , Pan Li

Getting deep convolutional neural networks to perform well requires a large amount of training data. When the available labelled data is small, it is often beneficial to use transfer learning to leverage a related larger dataset (source) in…

Machine Learning · Computer Science 2021-10-26 Lukas Hedegaard Morsing , Omar Ali Sheikh-Omar , Alexandros Iosifidis

Large Language Models (LLMs) have achieved remarkable success across various domains. However, they still face significant challenges, including high computational costs for training and limitations in solving complex reasoning problems.…

Machine Learning · Computer Science 2025-05-20 Hang Gao , Chenhao Zhang , Tie Wang , Junsuo Zhao , Fengge Wu , Changwen Zheng , Huaping Liu

Domain adaptation (DA) tries to tackle the scenarios when the test data does not fully follow the same distribution of the training data, and multi-source domain adaptation (MSDA) is very attractive for real world applications. By learning…

Machine Learning · Computer Science 2024-01-17 Jin Yuan , Feng Hou , Yangzhou Du , Zhongchao Shi , Xin Geng , Jianping Fan , Yong Rui

A significant number of anomalous nodes in the real world, such as fake news, noncompliant users, malicious transactions, and malicious posts, severely compromises the health of the graph data ecosystem and urgently requires effective…

Machine Learning · Computer Science 2026-03-11 Xiong Zhang , Hong Peng , Changlong Fu , Xin Jin , Yun Yang , Cheng Xie

Graph Neural Networks (GNNs) have achieved great success on a variety of tasks with graph-structural data, among which node classification is an essential one. Unsupervised Graph Domain Adaptation (UGDA) shows its practical value of…

Machine Learning · Computer Science 2023-12-06 Haitao Mao , Lun Du , Yujia Zheng , Qiang Fu , Zelin Li , Xu Chen , Shi Han , Dongmei Zhang

Domain shift is a fundamental problem in visual recognition which typically arises when the source and target data follow different distributions. The existing domain adaptation approaches which tackle this problem work in the closed-set…

Computer Vision and Pattern Recognition · Computer Science 2020-07-01 Yadan Luo , Zijian Wang , Zi Huang , Mahsa Baktashmotlagh

Graph Domain Adaptation (GDA) transfers knowledge from labeled source graphs to unlabeled target graphs but is challenged by complex, multi-faceted distributional shifts. Existing methods attempt to reduce distributional shifts by aligning…

Machine Learning · Computer Science 2026-03-19 Wei Chen , Xingyu Guo , Shuang Li , Zhao Zhang , Yan Zhong , Fuzhen Zhuang , Deqing wang

Graph neural networks (GNNs) have achieved impressive performance in graph domain adaptation. However, extensive source graphs could be unavailable in real-world scenarios due to privacy and storage concerns. To this end, we investigate an…

Machine Learning · Computer Science 2024-08-23 Junyu Luo , Zhiping Xiao , Yifan Wang , Xiao Luo , Jingyang Yuan , Wei Ju , Langechuan Liu , Ming Zhang

Graph Edit Distance (GED) is a widely used metric for measuring similarity between two graphs. Computing the optimal GED is NP-hard, leading to the development of various neural and non-neural heuristics. While neural methods have achieved…

Machine Learning · Computer Science 2025-05-06 Samidha Verma , Arushi Goyal , Ananya Mathur , Ankit Anand , Sayan Ranu

Integrating large language models (LLMs) with knowledge graphs derived from domain-specific data represents an important advancement towards more powerful and factual reasoning. As these models grow more capable, it is crucial to enable…

Artificial Intelligence · Computer Science 2024-04-19 Stefan Dernbach , Khushbu Agarwal , Alejandro Zuniga , Michael Henry , Sutanay Choudhury

Sourced from multiple sensors and organized chronologically, Multivariate Time-Series (MTS) data involves crucial spatial-temporal dependencies. To capture these dependencies, Graph Neural Networks (GNNs) have emerged as powerful tools. As…

Artificial Intelligence · Computer Science 2025-10-07 Yucheng Wang , Min Wu , Ruibing Jin , Xiaoli Li , Lihua Xie , Zhenghua Chen

Tabular data is among the oldest and most ubiquitous forms of data. However, the generation of synthetic samples with the original data's characteristics remains a significant challenge for tabular data. While many generative models from…

Machine Learning · Computer Science 2023-04-25 Vadim Borisov , Kathrin Seßler , Tobias Leemann , Martin Pawelczyk , Gjergji Kasneci

Despite significant evolution of CUDA programming and domain-specific libraries, effectively utilizing GPUs with massively parallel engines remains difficult. Large language models (LLMs) show strong potential in generating optimized CUDA…

Machine Learning · Computer Science 2025-10-24 Junfeng Gong , Zhiyi Wei , Junying Chen , Cheng Liu , Huawei Li

Graph Structure Learning (GSL) focuses on capturing intrinsic dependencies and interactions among nodes in graph-structured data by generating novel graph structures. Graph Neural Networks (GNNs) have emerged as promising GSL solutions,…

Machine Learning · Computer Science 2025-03-11 Zirui Guo , Lianghao Xia , Yanhua Yu , Yuling Wang , Kangkang Lu , Zhiyong Huang , Chao Huang

Unsupervised domain adaptation leverages abundant labeled data from various source domains to generalize onto unlabeled target data. Prior research has primarily focused on learning domain-invariant features across the source and target…

Computation and Language · Computer Science 2025-03-10 Jie He , Wendi Zhou , Xiang Lorraine Li , Jeff Z. Pan

Large language models (LLMs) often struggle with knowledge-intensive tasks due to hallucinations and outdated parametric knowledge. While Retrieval-Augmented Generation (RAG) addresses this by integrating external corpora, its effectiveness…

Computation and Language · Computer Science 2026-02-04 Su Dong , Qinggang Zhang , Yilin Xiao , Shengyuan Chen , Chuang Zhou , Xiao Huang