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The mission of open knowledge graph (KG) completion is to draw new findings from known facts. Existing works that augment KG completion require either (1) factual triples to enlarge the graph reasoning space or (2) manually designed prompts…

计算与语言 · 计算机科学 2023-05-26 Pengcheng Jiang , Shivam Agarwal , Bowen Jin , Xuan Wang , Jimeng Sun , Jiawei Han

Knowledge Graph Completion (KGC) predicts missing facts in an incomplete Knowledge Graph. Almost all of existing KGC research is applicable to only one KG at a time, and in one language only. However, different language speakers may…

人工智能 · 计算机科学 2021-04-20 Harkanwar Singh , Prachi Jain , Mausam , Soumen Chakrabarti

Graph Neural Networks (GNNs) have demonstrated remarkable effectiveness in various graph representation learning tasks. However, most existing GNNs focus primarily on capturing local information through explicit graph convolution, often…

机器学习 · 计算机科学 2025-01-31 Jinlu Wang , Yanfeng Sun , Jiapu Wang , Junbin Gao , Shaofan Wang , Jipeng Guo

Node classification is a key task in temporal graph learning (TGL). Real-life temporal graphs often introduce new node classes over time, but existing TGL methods assume a fixed set of classes. This assumption brings limitations, as…

机器学习 · 计算机科学 2025-03-04 Hanmo Liu , Shimin Di , Haoyang Li , Xun Jian , Yue Wang , Lei Chen

This paper addresses the temporal sentence grounding (TSG). Although existing methods have made decent achievements in this task, they not only severely rely on abundant video-query paired data for training, but also easily fail into the…

计算机视觉与模式识别 · 计算机科学 2023-05-09 Daizong Liu , Xiaoye Qu , Jianfeng Dong , Pan Zhou , Zichuan Xu , Haozhao Wang , Xing Di , Weining Lu , Yu Cheng

Knowledge graphs (KGs) are valuable for representing structured, interconnected information across domains, enabling tasks like semantic search, recommendation systems and inference. A pertinent challenge with KGs, however, is that many…

计算与语言 · 计算机科学 2024-12-17 Haji Gul , Abdul Ghani Naim , Ajaz A. Bhat

In this paper, we propose the Graph Temporal Edge Aggregation (GTEA) framework for inductive learning on Temporal Interaction Graphs (TIGs). Different from previous works, GTEA models the temporal dynamics of interaction sequences in the…

Dynamic graph learning methods have recently emerged as powerful tools for modelling relational data evolving through time. However, despite extensive benchmarking efforts, it remains unclear whether current Temporal Graph Neural Networks…

机器学习 · 计算机科学 2025-07-23 Alireza Dizaji , Benedict Aaron Tjandra , Mehrab Hamidi , Shenyang Huang , Guillaume Rabusseau

The rise of graph-structured data has driven major advances in Graph Machine Learning (GML), where graph embeddings (GEs) map features from Knowledge Graphs (KGs) into vector spaces, enabling tasks like node classification and link…

机器学习 · 计算机科学 2026-01-27 Rosario Napoli , Gabriele Morabito , Antonio Celesti , Massimo Villari , Maria Fazio

Dynamic recommendation systems aim to provide personalized suggestions by modeling temporal user-item interactions across time-series behavioral data. Recent studies have leveraged pre-trained dynamic graph neural networks (GNNs) to learn…

信息检索 · 计算机科学 2025-11-18 Zhen Tao , Xinke Jiang , Qingshuai Feng , Haoyu Zhang , Lun Du , Yuchen Fang , Hao Miao , Bangquan Xie , Qingqiang Sun

Graphs have become a crucial way to represent large, complex and often temporal datasets across a wide range of scientific disciplines. However, when graphs are used as input to machine learning models, this rich temporal information is…

Graph Retrieval-Augmented Generation (GraphRAG) has proven highly effective in enhancing the performance of Large Language Models (LLMs) on tasks that require external knowledge. By leveraging Knowledge Graphs (KGs), GraphRAG improves…

人工智能 · 计算机科学 2025-11-06 Ruiyi Yang , Hao Xue , Imran Razzak , Hakim Hacid , Flora D. Salim

Recently, Hyper-relational Knowledge Graphs (HKGs) have been proposed as an extension of traditional Knowledge Graphs (KGs) to better represent real-world facts with additional qualifiers. As a result, researchers have attempted to adapt…

机器学习 · 计算机科学 2025-08-06 Yubo Wang , Shimin Di , Zhili Wang , Haoyang Li , Fei Teng , Hao Xin , Lei Chen

Knowledge Graph Embedding (KGE) methods have gained enormous attention from a wide range of AI communities including Natural Language Processing (NLP) for text generation, classification and context induction. Embedding a huge number of…

人工智能 · 计算机科学 2022-09-19 Mojtaba Moattari , Sahar Vahdati , Farhana Zulkernine

Representing urban regions accurately and comprehensively is essential for various urban planning and analysis tasks. Recently, with the expansion of the city, modeling long-range spatial dependencies with multiple data sources plays an…

计算机视觉与模式识别 · 计算机科学 2024-06-04 Weiliang Chen , Qianqian Ren , Jinbao Li

Knowledge Graph Representation Learning (KGRL), or Knowledge Graph Embedding (KGE), is essential for AI applications such as knowledge construction and information retrieval. These models encode entities and relations into lower-dimensional…

人工智能 · 计算机科学 2024-10-22 Tiroshan Madushanka , Ryutaro Ichise

Temporal graph learning is crucial for dynamic networks where nodes and edges evolve over time and new nodes continuously join the system. Inductive representation learning in such settings faces two major challenges: effectively…

机器学习 · 计算机科学 2025-08-21 Jiafeng Xiong , Rizos Sakellariou

Temporal knowledge graph (TKG) reasoning aims to predict the future missing facts based on historical information and has gained increasing research interest recently. Lots of works have been made to model the historical structural and…

人工智能 · 计算机科学 2023-04-26 Hao Dong , Zhiyuan Ning , Pengyang Wang , Ziyue Qiao , Pengfei Wang , Yuanchun Zhou , Yanjie Fu

Temporal Knowledge Graphs have emerged as a powerful way of not only modeling static relationships between entities but also the dynamics of how relations evolve over time. As these informational structures can be used to store information…

机器学习 · 计算机科学 2025-10-29 Edward Markai , Sina Molavipour

Knowledge graphs (KGs) have gained prominence for their ability to learn representations for uni-relational facts. Recently, research has focused on modeling hyper-relational facts, which move beyond the restriction of uni-relational facts…

机器学习 · 计算机科学 2022-08-31 Harry Shomer , Wei Jin , Juanhui Li , Yao Ma , Jiliang Tang