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Knowledge graphs can represent information about the real-world using entities and their relations in a structured and semantically rich manner and they enable a variety of downstream applications such as question-answering, recommendation…

Computation and Language · Computer Science 2023-05-16 Hanieh Khorashadizadeh , Nandana Mihindukulasooriya , Sanju Tiwari , Jinghua Groppe , Sven Groppe

Knowledge graph embedding, which projects symbolic entities and relations into continuous vector spaces, is gaining increasing attention. Previous methods allow a single static embedding for each entity or relation, ignoring their intrinsic…

Artificial Intelligence · Computer Science 2020-04-07 Quan Wang , Pingping Huang , Haifeng Wang , Songtai Dai , Wenbin Jiang , Jing Liu , Yajuan Lyu , Yong Zhu , Hua Wu

Representation learning of knowledge bases (KBs) aims to embed both entities and relations into a low-dimensional space. Most existing methods only consider direct relations in representation learning. We argue that multiple-step relation…

Computation and Language · Computer Science 2015-08-18 Yankai Lin , Zhiyuan Liu , Huanbo Luan , Maosong Sun , Siwei Rao , Song Liu

Knowledge graph embedding has recently become a popular way to model relations and infer missing links. In this paper, we present a group theoretical perspective of knowledge graph embedding, connecting previous methods with different group…

Machine Learning · Computer Science 2019-12-02 Chen Cai

In order to facilitate the accesses of general users to knowledge graphs, an increasing effort is being exerted to construct graph-structured queries of given natural language questions. At the core of the construction is to deduce the…

Artificial Intelligence · Computer Science 2024-04-01 Ruijie Wang , Meng Wang , Jun Liu , Michael Cochez , Stefan Decker

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…

Machine Learning · Computer Science 2022-11-29 Peyman Baghershahi , Reshad Hosseini , Hadi Moradi

In this paper we propose and study the novel problem of explaining node embeddings by finding embedded human interpretable subspaces in already trained unsupervised node representation embeddings. We use an external knowledge base that is…

Machine Learning · Computer Science 2019-10-14 Maximilian Idahl , Megha Khosla , Avishek Anand

Embedding entities and relations of a knowledge graph in a low-dimensional space has shown impressive performance in predicting missing links between entities. Although progresses have been achieved, existing methods are heuristically…

Computation and Language · Computer Science 2021-01-26 Danushka Bollegala , Huda Hakami , Yuichi Yoshida , Ken-ichi Kawarabayashi

Knowledge graph embedding is a representation learning technique that projects entities and relations in a knowledge graph to continuous vector spaces. Embeddings have gained a lot of uptake and have been heavily used in link prediction and…

Artificial Intelligence · Computer Science 2022-07-14 Jan Portisch , Heiko Paulheim

How related are the representations learned by neural language models, translation models, and language tagging tasks? We answer this question by adapting an encoder-decoder transfer learning method from computer vision to investigate the…

Computation and Language · Computer Science 2025-12-11 Richard Antonello , Javier Turek , Vy Vo , Alexander Huth

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…

Computation and Language · Computer Science 2022-10-24 Sirui Li , Kok Wai Wong , Dengya Zhu , Chun Che Fung

Concepts, which represent a group of different instances sharing common properties, are essential information in knowledge representation. Most conventional knowledge embedding methods encode both entities (concepts and instances) and…

Artificial Intelligence · Computer Science 2018-11-13 Xin Lv , Lei Hou , Juanzi Li , Zhiyuan Liu

Knowledge graphs are an efficient method for representing and connecting information across various concepts, useful in reasoning, question answering, and knowledge base completion tasks. They organize data by linking points, enabling…

Artificial Intelligence · Computer Science 2025-02-25 Saher Mohamed , Kirollos Farah , Abdelrahman Lotfy , Kareem Rizk , Abdelrahman Saeed , Shahenda Mohamed , Ghada Khouriba , Tamer Arafa

Knowledge graphs enable data scientists to learn end-to-end on heterogeneous knowledge. However, most end-to-end models solely learn from the relational information encoded in graphs' structure: raw values, encoded as literal nodes, are…

Machine Learning · Computer Science 2023-09-06 W. X. Wilcke , P. Bloem , V. de Boer , R. H. van t Veer

The graph structure is a commonly used data storage mode, and it turns out that the low-dimensional embedded representation of nodes in the graph is extremely useful in various typical tasks, such as node classification, link prediction ,…

Social and Information Networks · Computer Science 2020-08-03 Xing Li , Wei Wei , Xiangnan Feng , Xue Liu , Zhiming Zheng

We propose a new method for embedding graphs while preserving directed edge information. Learning such continuous-space vector representations (or embeddings) of nodes in a graph is an important first step for using network information…

Machine Learning · Computer Science 2017-09-15 Sami Abu-El-Haija , Bryan Perozzi , Rami Al-Rfou

Knowledge proximity refers to the strength of association between any two entities in a structural form that embodies certain aspects of a knowledge base. In this work, we operationalize knowledge proximity within the context of the US…

Information Retrieval · Computer Science 2022-12-13 Guangtong Li , L Siddharth , Jianxi Luo

We propose Embedding Propagation (EP), an unsupervised learning framework for graph-structured data. EP learns vector representations of graphs by passing two types of messages between neighboring nodes. Forward messages consist of label…

Machine Learning · Computer Science 2017-10-10 Alberto Garcia-Duran , Mathias Niepert

Graph data structures are widely used to store relational information between several entities. With data being generated worldwide on a large scale, we see a significant growth in the generation of knowledge graphs. Thing in the future is…

Artificial Intelligence · Computer Science 2023-10-24 Rohith Teja Mittakola , Thomas Hassan

Knowledge graph embedding models learn the representations of entities and relations in the knowledge graphs for predicting missing links (relations) between entities. Their effectiveness are deeply affected by the ability of modeling and…

Artificial Intelligence · Computer Science 2021-10-28 Tengwei Song , Jie Luo , Lei Huang