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Most existing knowledge graphs suffer from incompleteness, which can be alleviated by inferring missing links based on known facts. One popular way to accomplish this is to generate low-dimensional embeddings of entities and relations, and…

机器学习 · 计算机科学 2020-09-25 Shikhar Vashishth , Soumya Sanyal , Vikram Nitin , Nilesh Agrawal , Partha Talukdar

Knowledge graph embedding is an important task and it will benefit lots of downstream applications. Currently, deep neural networks based methods achieve state-of-the-art performance. However, most of these existing methods are very complex…

人工智能 · 计算机科学 2020-11-02 Feiliang Ren , Juchen Li , Huihui Zhang , Shilei Liu , Bochao Li , Ruicheng Ming , Yujia Bai

The recent proliferation of knowledge graphs (KGs) coupled with incomplete or partial information, in the form of missing relations (links) between entities, has fueled a lot of research on knowledge base completion (also known as relation…

机器学习 · 计算机科学 2019-06-05 Deepak Nathani , Jatin Chauhan , Charu Sharma , Manohar Kaul

In this paper, we propose a novel embedding model, named ConvKB, for knowledge base completion. Our model ConvKB advances state-of-the-art models by employing a convolutional neural network, so that it can capture global relationships and…

计算与语言 · 计算机科学 2018-08-14 Dai Quoc Nguyen , Tu Dinh Nguyen , Dat Quoc Nguyen , Dinh Phung

Representation learning of knowledge graphs aims to embed entities and relations into low-dimensional vectors. Most existing works only consider the direct relations or paths between an entity pair. It is considered that such approaches…

计算与语言 · 计算机科学 2022-10-24 Sirui Li , Kok Wai Wong , Dengya Zhu , Chun Che Fung

Knowledge graphs are graphical representations of large databases of facts, which typically suffer from incompleteness. Inferring missing relations (links) between entities (nodes) is the task of link prediction. A recent state-of-the-art…

机器学习 · 计算机科学 2019-09-12 Ivana Balažević , Carl Allen , Timothy M. Hospedales

Knowledge graph embedding methods learn embeddings of entities and relations in a low dimensional space which can be used for various downstream machine learning tasks such as link prediction and entity matching. Various graph convolutional…

机器学习 · 计算机科学 2021-02-16 Nasrullah Sheikh , Xiao Qin , Berthold Reinwald , Christoph Miksovic , Thomas Gschwind , Paolo Scotton

Real-world knowledge graphs (KG) are mostly incomplete. The problem of recovering missing relations, called KG completion, has recently become an active research area. Knowledge graph (KG) embedding, a low-dimensional representation of…

人工智能 · 计算机科学 2022-07-01 Minsang Kim , Seungjun Baek

Knowledge graph is a popular format for representing knowledge, with many applications to semantic search engines, question-answering systems, and recommender systems. Real-world knowledge graphs are usually incomplete, so knowledge graph…

机器学习 · 计算机科学 2023-04-26 Hung Nghiep Tran , Atsuhiro Takasu

As an efficient model for knowledge organization, the knowledge graph has been widely adopted in several fields, e.g., biomedicine, sociology, and education. And there is a steady trend of learning embedding representations of knowledge…

计算与语言 · 计算机科学 2024-04-01 Siyu Yao , Ruijie Wang , Shen Sun , Derui Bu , Jun Liu

Link prediction for knowledge graphs is the task of predicting missing relationships between entities. Previous work on link prediction has focused on shallow, fast models which can scale to large knowledge graphs. However, these models…

机器学习 · 计算机科学 2018-07-05 Tim Dettmers , Pasquale Minervini , Pontus Stenetorp , Sebastian Riedel

Recent studies on knowledge graph embedding focus on mapping entities and relations into low-dimensional vector spaces. While most existing models primarily exploit structural information, knowledge graphs also contain rich contextual and…

计算与语言 · 计算机科学 2025-09-03 Qisong Li , Ji Lin , Sijia Wei , Neng Liu

Addressing the incompleteness problem in knowledge graph remains a significant challenge. Current knowledge graph completion methods have their limitations. For example, ComDensE is prone to overfitting and suffers from the degradation with…

信息检索 · 计算机科学 2024-10-10 Chuhong Yang , Bin Li , Nan Wu

Recently, a considerable literature has grown up around the theme of Graph Convolutional Network (GCN). How to effectively leverage the rich structural information in complex graphs, such as knowledge graphs with heterogeneous types of…

机器学习 · 计算机科学 2021-04-26 Donghan Yu , Yiming Yang , Ruohong Zhang , Yuexin Wu

Deep learning models suffer from opaqueness. For Convolutional Neural Networks (CNNs), current research strategies for explaining models focus on the target classes within the associated training dataset. As a result, the understanding of…

计算机视觉与模式识别 · 计算机科学 2021-02-23 Xuehao Liu , Sarah Jane Delany , Susan McKeever

Knowledge graph (KG) embedding encodes the entities and relations from a KG into low-dimensional vector spaces to support various applications such as KG completion, question answering, and recommender systems. In real world, knowledge…

数据库 · 计算机科学 2022-06-02 Tianxing Wu , Arijit Khan , Melvin Yong , Guilin Qi , Meng Wang

Knowledge hypergraph embedding models are usually computationally expensive due to the inherent complex semantic information. However, existing works mainly focus on improving the effectiveness of knowledge hypergraph embedding, making the…

人工智能 · 计算机科学 2024-11-05 Zhao Li , Xin Wang , Jun Zhao , Wenbin Guo , Jianxin Li

Light-weight convolutional neural networks (CNNs) suffer performance degradation as their low computational budgets constrain both the depth (number of convolution layers) and the width (number of channels) of CNNs, resulting in limited…

计算机视觉与模式识别 · 计算机科学 2020-04-02 Yinpeng Chen , Xiyang Dai , Mengchen Liu , Dongdong Chen , Lu Yuan , Zicheng Liu

A few models have tried to tackle the link prediction problem, also known as knowledge graph completion, by embedding knowledge graphs in comparably lower dimensions. However, the state-of-the-art results are attained at the cost of…

机器学习 · 计算机科学 2022-11-29 Peyman Baghershahi , Reshad Hosseini , Hadi Moradi

Link prediction is critical for the application of incomplete knowledge graph (KG) in the downstream tasks. As a family of effective approaches for link predictions, embedding methods try to learn low-rank representations for both entities…

计算与语言 · 计算机科学 2019-11-22 Canran Xu , Ruijiang Li
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