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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

Modeling time-evolving knowledge graphs (KGs) has recently gained increasing interest. Here, graph representation learning has become the dominant paradigm for link prediction on temporal KGs. However, the embedding-based approaches largely…

机器学习 · 计算机科学 2021-04-02 Zhen Han , Peng Chen , Yunpu Ma , Volker Tresp

Real-world Knowledge Graphs (KGs) often suffer from incompleteness, which limits their potential performance. Knowledge Graph Completion (KGC) techniques aim to address this issue. However, traditional KGC methods are computationally…

计算与语言 · 计算机科学 2023-11-03 Alla Chepurova , Aydar Bulatov , Yuri Kuratov , Mikhail Burtsev

Knowledge graph completion (KGC) revolves around populating missing triples in a knowledge graph using available information. Text-based methods, which depend on textual descriptions of triples, often encounter difficulties when these…

计算与语言 · 计算机科学 2025-04-08 Haotian Li , Bin Yu , Yuliang Wei , Kai Wang , Richard Yi Da Xu , Bailing Wang

Inductive knowledge graph completion (KGC) aims to predict missing triples with unseen entities. Recent works focus on modeling reasoning paths between the head and tail entity as direct supporting evidence. However, these methods depend…

人工智能 · 计算机科学 2024-12-30 Muzhi Li , Cehao Yang , Chengjin Xu , Zixing Song , Xuhui Jiang , Jian Guo , Ho-fung Leung , Irwin King

Knowledge graph completion (KGC) aims to discover missing relations of query entities. Current text-based models utilize the entity name and description to infer the tail entity given the head entity and a certain relation. Existing…

计算与语言 · 计算机科学 2023-10-20 Irene Li , Boming Yang

Knowledge graph (KG) alignment - the task of recognizing entities referring to the same thing in different KGs - is recognized as one of the most important operations in the field of KG construction and completion. However, existing…

Many mathematical models have been leveraged to design embeddings for representing Knowledge Graph (KG) entities and relations for link prediction and many downstream tasks. These mathematically-inspired models are not only highly scalable…

人工智能 · 计算机科学 2023-09-25 Xiou Ge , Yun-Cheng Wang , Bin Wang , C. -C. Jay Kuo

Knowledge graphs (KGs) consist of links that describe relationships between entities. Due to the difficulty of manually enumerating all relationships between entities, automatically completing them is essential for KGs. Knowledge Graph…

计算与语言 · 计算机科学 2024-06-07 Yusuke Sakai , Hidetaka Kamigaito , Katsuhiko Hayashi , Taro Watanabe

While graph neural networks (GNNs) have been shown to perform well on graph-based data from a variety of fields, they suffer from a lack of transparency and accountability, which hinders trust and consequently the deployment of such models…

机器学习 · 计算机科学 2021-07-27 Lucie Charlotte Magister , Dmitry Kazhdan , Vikash Singh , Pietro Liò

Knowledge graph completion (KGC) can predict missing links and is crucial for real-world knowledge graphs, which widely suffer from incompleteness. KGC methods assume a knowledge graph is static, but that may lead to inaccurate prediction…

人工智能 · 计算机科学 2023-11-14 Borui Cai , Yong Xiang , Longxiang Gao , He Zhang , Yunfeng Li , Jianxin Li

Graph convolutional networks (GCNs) -- which are effective in modeling graph structures -- have been increasingly popular in knowledge graph completion (KGC). GCN-based KGC models first use GCNs to generate expressive entity representations…

人工智能 · 计算机科学 2022-02-14 Zhanqiu Zhang , Jie Wang , Jieping Ye , Feng Wu

Knowledge Graph Completion (KGC) aims to predict the missing [relation] part of (head entity)--[relation]->(tail entity) triplet. Most existing KGC methods focus on single features (e.g., relation types) or sub-graph aggregation. However,…

计算与语言 · 计算机科学 2024-09-27 Pengjie Liu

Knowledge graph embedding (KGE) focuses on representing the entities and relations of a knowledge graph (KG) into the continuous vector spaces, which can be employed to predict the missing triples to achieve knowledge graph completion…

计算与语言 · 计算机科学 2023-07-25 Yichi Zhang , Wen Zhang

Complex logical query answering (CLQA) is a challenging task that involves finding answer entities for complex logical queries over incomplete knowledge graphs (KGs). Previous research has explored the use of pre-trained knowledge graph…

人工智能 · 计算机科学 2024-10-10 Changyi Xiao , Yixin Cao

Knowledge graphs (KGs), as structured representations of real world facts, are intelligent databases incorporating human knowledge that can help machine imitate the way of human problem solving. However, KGs are usually huge and there are…

机器学习 · 计算机科学 2023-06-27 Haotian Li , Hongri Liu , Yao Wang , Guodong Xin , Yuliang Wei

The task of Knowledge Graph Completion (KGC) aims to automatically infer the missing fact information in Knowledge Graph (KG). In this paper, we take a new perspective that aims to leverage rich user-item interaction data (user interaction…

人工智能 · 计算机科学 2020-04-28 Gaole He , Junyi Li , Wayne Xin Zhao , Peiju Liu , Ji-Rong Wen

Knowledge Graphs (KGs) are becoming increasingly essential infrastructures in many applications while suffering from incompleteness issues. The KG completion task (KGC) automatically predicts missing facts based on an incomplete KG.…

机器学习 · 计算机科学 2022-07-18 Weijian Chen , Yixin Cao , Fuli Feng , Xiangnan He , Yongdong Zhang

Knowledge Graph Completion (KGC) has emerged as a promising solution to address the issue of incompleteness within Knowledge Graphs (KGs). Traditional KGC research primarily centers on triple classification and link prediction.…

人工智能 · 计算机科学 2024-04-16 Jiayi Li , Ruilin Luo , Jiaqi Sun , Jing Xiao , Yujiu Yang

Knowledge graph completion (KGC) aims to predict missing facts in knowledge graphs (KGs), which is crucial as modern KGs remain largely incomplete. While training KGC models on multiple aligned KGs can improve performance, previous methods…

计算与语言 · 计算机科学 2023-12-19 Wei Tang , Zhiqian Wu , Yixin Cao , Yong Liao , Pengyuan Zhou