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Learning knowledge graph (KG) embeddings has received increasing attention in recent years. Most embedding models in literature interpret relations as linear or bilinear mapping functions to operate on entity embeddings. However, we find…

人工智能 · 计算机科学 2020-04-29 Zequn Sun , Jiacheng Huang , Wei Hu , Muchao Chen , Lingbing Guo , Yuzhong Qu

The goal of representation learning of knowledge graph is to encode both entities and relations into a low-dimensional embedding spaces. Many recent works have demonstrated the benefits of knowledge graph embedding on knowledge graph…

人工智能 · 计算机科学 2019-10-11 Wenqiang Liu , Hongyun Cai , Xu Cheng , Sifa Xie , Yipeng Yu , Hanyu Zhang

Learning the embeddings of knowledge graphs (KG) is vital in artificial intelligence, and can benefit various downstream applications, such as recommendation and question answering. In recent years, many research efforts have been proposed…

人工智能 · 计算机科学 2022-10-25 Zhiping Luo , Wentao Xu , Weiqing Liu , Jiang Bian , Jian Yin , Tie-Yan Liu

Subsampling is effective in Knowledge Graph Embedding (KGE) for reducing overfitting caused by the sparsity in Knowledge Graph (KG) datasets. However, current subsampling approaches consider only frequencies of queries that consist of…

计算与语言 · 计算机科学 2024-04-15 Xincan Feng , Hidetaka Kamigaito , Katsuhiko Hayashi , Taro Watanabe

The primary aim of Knowledge Graph embeddings (KGE) is to learn low-dimensional representations of entities and relations for predicting missing facts. While rotation-based methods like RotatE and QuatE perform well in KGE, they face two…

计算与语言 · 计算机科学 2024-10-03 Yihua Zhu , Hidetoshi Shimodaira

Knowledge graphs (KGs) are commonly used as side information to enhance collaborative signals and improve recommendation quality. In the context of knowledge-aware recommendation (KGR), graph neural networks (GNNs) have emerged as promising…

信息检索 · 计算机科学 2023-08-16 Yi Liu , Hongrui Xuan , Bohan Li , Meng Wang , Tong Chen , Hongzhi Yin

Graph embedding based on random-walks supports effective solutions for many graph-related downstream tasks. However, the abundance of embedding literature has made it increasingly difficult to compare existing methods and to identify…

机器学习 · 计算机科学 2021-10-26 Zexi Huang , Arlei Silva , Ambuj Singh

Knowledge Graph Completion (KGC) aims to predict the missing information in the (head entity)-[relation]-(tail entity) triplet. Deep Neural Networks have achieved significant progress in the relation prediction task. However, most existing…

计算与语言 · 计算机科学 2024-08-15 Pengjie Liu

Knowledge Graph (KG) embedding has attracted more attention in recent years. Most KG embedding models learn from time-unaware triples. However, the inclusion of temporal information beside triples would further improve the performance of a…

机器学习 · 计算机科学 2020-10-29 Chengjin Xu , Mojtaba Nayyeri , Fouad Alkhoury , Hamed Shariat Yazdi , Jens Lehmann

Relational graph neural networks have garnered particular attention to encode graph context in knowledge graphs (KGs). Although they achieved competitive performance on small KGs, how to efficiently and effectively utilize graph context for…

计算与语言 · 计算机科学 2022-05-16 Huijuan Wang , Siming Dai , Weiyue Su , Hui Zhong , Zeyang Fang , Zhengjie Huang , Shikun Feng , Zeyu Chen , Yu Sun , Dianhai Yu

Knowledge graph embedding techniques are widely used for knowledge graph refinement tasks such as graph completion and triple classification. These techniques aim at embedding the entities and relations of a Knowledge Graph (KG) in a low…

计算与语言 · 计算机科学 2022-11-22 Armita Khajeh Nassiri , Nathalie Pernelle , Fatiha Sais , Gianluca Quercini

Link prediction on knowledge graphs (KGs) has been extensively studied on binary relational KGs, wherein each fact is represented by a triple. A significant amount of important knowledge, however, is represented by hyper-relational facts…

人工智能 · 计算机科学 2023-06-06 Bo Xiong , Mojtaba Nayyer , Shirui Pan , Steffen Staab

Graph Neural Networks (GNNs) have demonstrated great success in Knowledge Graph Completion (KGC) by modeling how entities and relations interact in recent years. However, most of them are designed to learn from the observed graph structure,…

机器学习 · 计算机科学 2023-02-28 Heng Chang , Jie Cai , Jia Li

Injecting textual information into knowledge graph (KG) entity representations has been a worthwhile expedition in terms of improving performance in KG oriented tasks within the NLP community. External knowledge often adopted to enhance KG…

计算与语言 · 计算机科学 2023-10-26 Micheal Abaho , Yousef H. Alfaifi

Knowledge graph embedding (KGE) models learn the representation of entities and relations in knowledge graphs. Distance-based methods show promising performance on link prediction task, which predicts the result by the distance between two…

计算与语言 · 计算机科学 2022-12-26 Baoxin Wang , Qingye Meng , Ziyue Wang , Honghong Zhao , Dayong Wu , Wanxiang Che , Shijin Wang , Zhigang Chen , Cong Liu

Graph embedding, representing local and global neighborhood information by numerical vectors, is a crucial part of the mathematical modeling of a wide range of real-world systems. Among the embedding algorithms, random walk-based algorithms…

社会与信息网络 · 计算机科学 2022-07-06 Sarmad N. Mohammed , Semra Gündüç

Knowledge Graphs (KG) are of vital importance for multiple applications on the web, including information retrieval, recommender systems, and metadata annotation. Regardless of whether they are built manually by domain experts or with…

计算与语言 · 计算机科学 2026-05-12 Daniel Daza , Michael Cochez , Paul Groth

Knowledge is captured in the form of entities and their relationships and stored in knowledge graphs. Knowledge graphs enhance the capabilities of applications in many different areas including Web search, recommendation, and natural…

机器学习 · 计算机科学 2021-03-31 Kalpa Gunaratna , Yu Wang , Hongxia Jin

Knowledge graph embedding (KGE) is an increasingly popular technique that aims to represent entities and relations of knowledge graphs into low-dimensional semantic spaces for a wide spectrum of applications such as link prediction,…

机器学习 · 计算机科学 2023-10-17 Jiahang Cao , Jinyuan Fang , Zaiqiao Meng , Shangsong Liang

Graph vertex embeddings based on random walks have become increasingly influential in recent years, showing good performance in several tasks as they efficiently transform a graph into a more computationally digestible format while…

机器学习 · 统计学 2021-07-22 Dominik Kloepfer , Angelica I. Aviles-Rivero , Daniel Heydecker