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Knowledge graph completion is an important task that aims to predict the missing relational link between entities. Knowledge graph embedding methods perform this task by representing entities and relations as embedding vectors and modeling…

Machine Learning · Computer Science 2022-10-04 Hung Nghiep Tran , Atsuhiro Takasu

Low-dimensional embeddings of knowledge graphs and behavior graphs have proved remarkably powerful in varieties of tasks, from predicting unobserved edges between entities to content recommendation. The two types of graphs can contain…

Machine Learning · Computer Science 2019-08-29 Yuting Ye , Xuwu Wang , Jiangchao Yao , Kunyang Jia , Jingren Zhou , Yanghua Xiao , Hongxia Yang

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…

Machine Learning · Computer Science 2023-04-26 Hung Nghiep Tran , Atsuhiro Takasu

This paper studies the problem of predicting missing relationships between entities in knowledge graphs through learning their representations. Currently, the majority of existing link prediction models employ simple but intuitive scoring…

Computation and Language · Computer Science 2019-11-20 Xiang Kong , Xianyang Chen , Eduard Hovy

In recent years, knowledge graph embedding becomes a pretty hot research topic of artificial intelligence and plays increasingly vital roles in various downstream applications, such as recommendation and question answering. However,…

Artificial Intelligence · Computer Science 2020-06-24 Wentao Xu , Shun Zheng , Liang He , Bin Shao , Jian Yin , Tie-Yan Liu

Multi-modal entity alignment (MMEA) aims to identify equivalent entity pairs across different multi-modal knowledge graphs (MMKGs). Existing approaches focus on how to better encode and aggregate information from different modalities.…

Information Retrieval · Computer Science 2024-04-30 Zhiwei Hu , Víctor Gutiérrez-Basulto , Zhiliang Xiang , Ru Li , Jeff Z. Pan

We present a family of novel methods for embedding knowledge graphs into real-valued tensors. These tensor-based embeddings capture the ordered relations that are typical in the knowledge graphs represented by semantic web languages like…

Machine Learning · Computer Science 2022-08-25 Ankur Padia , Kostantinos Kalpakis , Francis Ferraro , Tim Finin

Over the past decade, knowledge graphs became popular for capturing structured domain knowledge. Relational learning models enable the prediction of missing links inside knowledge graphs. More specifically, latent distance approaches model…

Artificial Intelligence · Computer Science 2020-02-24 Afshin Sadeghi , Damien Graux , Hamed Shariat Yazdi , Jens Lehmann

Machine comprehension(MC) style question answering is a representative problem in natural language processing. Previous methods rarely spend time on the improvement of encoding layer, especially the embedding of syntactic information and…

Artificial Intelligence · Computer Science 2017-07-31 Boyuan Pan , Hao Li , Zhou Zhao , Bin Cao , Deng Cai , Xiaofei He

Scientists are increasingly interested in discovering community structure from modern relational data arising on large-scale social networks. While many methods have been proposed for learning community structure, few account for the fact…

Methodology · Statistics 2022-08-19 Yuhua Zhang , Walter Dempsey

Predicting missing links between entities in a knowledge graph is a fundamental task to deal with the incompleteness of data on the Web. Knowledge graph embeddings map nodes into a vector space to predict new links, scoring them according…

Artificial Intelligence · Computer Science 2023-02-14 Cosimo Gregucci , Mojtaba Nayyeri , Daniel Hernández , Steffen Staab

The link prediction task aims to predict missing entities or relations in the knowledge graph and is essential for the downstream application. Existing well-known models deal with this task by mainly focusing on representing knowledge graph…

Computation and Language · Computer Science 2023-03-29 Jin Liu , Jianye Chen , Chongfeng Fan , Fengyu Zhou

Learning good quality neural graph embeddings has long been achieved by minimizing the point-wise mutual information (PMI) for co-occurring nodes in simulated random walks. This design choice has been mostly popularized by the direct…

Social and Information Networks · Computer Science 2022-08-29 Asan Agibetov

Network analysis of human brain connectivity is critically important for understanding brain function and disease states. Embedding a brain network as a whole graph instance into a meaningful low-dimensional representation can be used to…

Machine Learning · Computer Science 2018-07-26 Ye Liu , Lifang He , Bokai Cao , Philip S. Yu , Ann B. Ragin , Alex D. Leow

Knowledge graph (KG) embedding methods which map entities and relations to unique embeddings in the KG have shown promising results on many reasoning tasks. However, the same embedding dimension for both dense entities and sparse entities…

Computation and Language · Computer Science 2022-05-06 Linlin Chao , Xiexiong Lin , Taifeng Wang , Wei Chu

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…

Computation and Language · Computer Science 2024-04-01 Siyu Yao , Ruijie Wang , Shen Sun , Derui Bu , Jun Liu

Multi-task semantic communication can serve multiple learning tasks using a shared encoder model. Existing models have overlooked the intricate relationships between features extracted during an encoding process of tasks. This paper…

Machine Learning · Computer Science 2025-01-07 Xi Yu , Tiejun Lv , Weicai Li , Wei Ni , Dusit Niyato , Ekram Hossain

With the surge in the development of large language models, embodied intelligence has attracted increasing attention. Nevertheless, prior works on embodied intelligence typically encode scene or historical memory in an unimodal manner,…

Computer Vision and Pattern Recognition · Computer Science 2024-07-30 Yang Liu , Xinshuai Song , Kaixuan Jiang , Weixing Chen , Jingzhou Luo , Guanbin Li , Liang Lin

Word embedding, which refers to low-dimensional dense vector representations of natural words, has demonstrated its power in many natural language processing tasks. However, it may suffer from the inaccurate and incomplete information…

Computation and Language · Computer Science 2015-06-16 Fei Tian , Bin Gao , Enhong Chen , Tie-Yan Liu

Knowledge graph embedding involves learning representations of entities -- the vertices of the graph -- and relations -- the edges of the graph -- such that the resulting representations encode the known factual information represented by…

Machine Learning · Computer Science 2023-03-21 Thomas Gebhart , Jakob Hansen , Paul Schrater
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