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Knowledge Graphs (KGs) store human knowledge in the form of entities (nodes) and relations, and are used extensively in various applications. KG embeddings are an effective approach to addressing tasks like knowledge discovery, link…

Artificial Intelligence · Computer Science 2025-02-03 Ioannis Reklos , Jacopo de Berardinis , Elena Simperl , Albert Meroño-Peñuela

Knowledge graphs (KGs) capture knowledge in the form of head--relation--tail triples and are a crucial component in many AI systems. There are two important reasoning tasks on KGs: (1) single-hop knowledge graph completion, which involves…

Machine Learning · Computer Science 2021-11-03 Hongyu Ren , Hanjun Dai , Bo Dai , Xinyun Chen , Denny Zhou , Jure Leskovec , Dale Schuurmans

In the task of Knowledge Graph Completion (KGC), the existing datasets and their inherent subtasks carry a wealth of shared knowledge that can be utilized to enhance the representation of knowledge triplets and overall performance. However,…

Computation and Language · Computer Science 2024-05-14 Yongxue Shan , Jie Zhou , Jie Peng , Xin Zhou , Jiaqian Yin , Xiaodong Wang

Knowledge graph embedding (KGE) has been shown to be a powerful tool for predicting missing links of a knowledge graph. However, existing methods mainly focus on modeling relation patterns, while simply embed entities to vector spaces, such…

Artificial Intelligence · Computer Science 2022-03-10 Jingxuan Chai , Guangming Shi

Knowledge Graph Embeddings (KGEs) support a wide range of downstream tasks over Knowledge Graphs (KGs). In practice, KGs evolve as new entities and facts are added, motivating Continual Knowledge Graph Embedding (CKGE) methods that update…

Machine Learning · Computer Science 2026-04-22 Gerard Pons , Carlos Escolano , Besim Bilalli , Anna Queralt

Knowledge graph embedding (KGE) that maps entities and relations into vector representations is essential for downstream applications. Conventional KGE methods require high-dimensional representations to learn the complex structure of…

Machine Learning · Computer Science 2024-09-04 Borui Cai , Yong Xiang , Longxiang Gao , Di Wu , He Zhang , Jiong Jin , Tom Luan

Knowledge representation is a long-history topic in AI, which is very important. A variety of models have been proposed for knowledge graph embedding, which projects symbolic entities and relations into continuous vector space. However,…

Machine Learning · Computer Science 2020-04-02 Han Xiao , Minlie Huang , Xiaoyan Zhu

Recent approaches of computer vision utilize deep learning methods as they perform quite well if training and testing domains follow the same underlying data distribution. However, it has been shown that minor variations in the images that…

Computer Vision and Pattern Recognition · Computer Science 2022-01-31 Sebastian Monka , Lavdim Halilaj , Achim Rettinger

Knowledge graph embedding~(KGE) aims to represent entities and relations into low-dimensional vectors for many real-world applications. The representations of entities and relations are learned via contrasting the positive and negative…

Artificial Intelligence · Computer Science 2022-02-22 Feihu Che , Guohua Yang , Pengpeng Shao , Dawei Zhang , Jianhua Tao

Knowledge Graph Embedding (KGE) models are used to learn continuous representations of entities and relations. A key task in the literature is predicting missing links between entities. However, Knowledge Graphs are not just sets of links…

Artificial Intelligence · Computer Science 2023-08-28 Thiviyan Thanapalasingam , Emile van Krieken , Peter Bloem , Paul Groth

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…

Computation and Language · Computer Science 2023-07-25 Yichi Zhang , Wen Zhang

Embedding models have shown great power in knowledge graph completion (KGC) task. By learning structural constraints for each training triple, these methods implicitly memorize intrinsic relation rules to infer missing links. However, this…

Computation and Language · Computer Science 2023-05-24 Rui Li , Xu Chen , Chaozhuo Li , Yanming Shen , Jianan Zhao , Yujing Wang , Weihao Han , Hao Sun , Weiwei Deng , Qi Zhang , Xing Xie

In this article, we explain the recent advance of subsampling methods in knowledge graph embedding (KGE) starting from the original one used in word2vec.

Artificial Intelligence · Computer Science 2022-09-27 Hidetaka Kamigaito , Katsuhiko Hayashi

A graph embedding algorithm embeds a graph into a low-dimensional space such that the embedding preserves the inherent properties of the graph. While graph embedding is fundamentally related to graph visualization, prior work did not…

Social and Information Networks · Computer Science 2020-09-22 Md. Khaledur Rahman , Majedul Haque Sujon , Ariful Azad

Knowledge graph completion aims to predict the new links in given entities among the knowledge graph (KG). Most mainstream embedding methods focus on fact triplets contained in the given KG, however, ignoring the rich background information…

Artificial Intelligence · Computer Science 2020-10-13 Zhaochong An , Bozhou Chen , Houde Quan , Qihui Lin , Hongzhi Wang

Embedding learning, a.k.a. representation learning, has been shown to be able to model large-scale semantic knowledge graphs. A key concept is a mapping of the knowledge graph to a tensor representation whose entries are predicted by models…

Artificial Intelligence · Computer Science 2016-05-10 Volker Tresp , Cristóbal Esteban , Yinchong Yang , Stephan Baier , Denis Krompaß

Text representations using neural word embeddings have proven effective in many NLP applications. Recent researches adapt the traditional word embedding models to learn vectors of multiword expressions (concepts/entities). However, these…

Computation and Language · Computer Science 2018-12-21 Walid Shalaby , Wlodek Zadrozny , Hongxia Jin

In statistical relational learning, knowledge graph completion deals with automatically understanding the structure of large knowledge graphs---labeled directed graphs---and predicting missing relationships---labeled edges. State-of-the-art…

Artificial Intelligence · Computer Science 2017-11-28 Théo Trouillon , Christopher R. Dance , Johannes Welbl , Sebastian Riedel , Éric Gaussier , Guillaume Bouchard

Entity alignment is to find identical entities in different knowledge graphs (KGs) that refer to the same real-world object. Embedding-based entity alignment techniques have been drawing a lot of attention recently because they can help…

Computation and Language · Computer Science 2022-11-08 Xiaobin Tian , Zequn Sun , Guangyao Li , Wei Hu

We address the problem of learning vector representations for entities and relations in Knowledge Graphs (KGs) for Knowledge Base Completion (KBC). This problem has received significant attention in the past few years and multiple methods…

Artificial Intelligence · Computer Science 2018-01-09 Srinivas Ravishankar , Chandrahas , Partha Pratim Talukdar