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The scoring function, which measures the plausibility of triplets in knowledge graphs (KGs), is the key to ensure the excellent performance of KG embedding, and its design is also an important problem in the literature. Automated machine…

Machine Learning · Computer Science 2021-04-23 Shimin Di , Quanming Yao , Yongqi Zhang , Lei Chen

Knowledge graph (KG) alignment - the task of recognizing entities referring to the same thing in different KGs - is recognized as one of the most important operations in the field of KG construction and completion. However, existing…

Computation and Language · Computer Science 2022-03-16 Vinh Van Tong , Thanh Trung Huynh , Thanh Tam Nguyen , Hongzhi Yin , Quoc Viet Hung Nguyen , Quyet Thang Huynh

Knowledge graphs have evolved rapidly in recent years and their usefulness has been demonstrated in many artificial intelligence tasks. However, knowledge graphs often have lots of missing facts. To solve this problem, many knowledge graph…

Artificial Intelligence · Computer Science 2019-04-08 Takuma Ebisu , Ryutaro Ichise

Knowledge Graph Completion (KGC) aims to infer missing information in Knowledge Graphs (KGs) to address their inherent incompleteness. Traditional structure-based KGC methods, while effective, face significant computational demands and…

Computation and Language · Computer Science 2025-04-01 Jianfang Chen , Kai Zhang , Aoran Gan , Shiwei Tong , Shuanghong Shen , Qi Liu

Multilingual knowledge graph (KG) embeddings provide latent semantic representations of entities and structured knowledge with cross-lingual inferences, which benefit various knowledge-driven cross-lingual NLP tasks. However, precisely…

Artificial Intelligence · Computer Science 2018-06-19 Muhao Chen , Yingtao Tian , Kai-Wei Chang , Steven Skiena , Carlo Zaniolo

Embedding models for deterministic Knowledge Graphs (KG) have been extensively studied, with the purpose of capturing latent semantic relations between entities and incorporating the structured knowledge into machine learning. However,…

Artificial Intelligence · Computer Science 2019-12-24 Xuelu Chen , Muhao Chen , Weijia Shi , Yizhou Sun , Carlo Zaniolo

Knowledge graphs (KGs), structured as multi-relational data of entities and relations, are vital for tasks like data analysis and recommendation systems. Knowledge graph completion (KGC), or link prediction, addresses incompleteness of KGs…

Machine Learning · Computer Science 2025-06-16 Huiling Zhu , Yingqi Zeng

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…

Databases · Computer Science 2022-06-02 Tianxing Wu , Arijit Khan , Melvin Yong , Guilin Qi , Meng Wang

Knowledge Graphs (KGs) are a powerful representation of linked data, offering flexibility, semantic richness, and support for knowledge enrichment and reasoning. They help data owners organize and exploit heterogeneous data to provide…

Cryptography and Security · Computer Science 2026-05-20 Yasmine Hayder

Adoption of recently developed methods from machine learning has given rise to creation of drug-discovery knowledge graphs (KG) that utilize the interconnected nature of the domain. Graph-based modelling of the data, combined with KG…

Machine Learning · Computer Science 2022-07-27 Stephen Bonner , Ufuk Kirik , Ola Engkvist , Jian Tang , Ian P Barrett

Knowledge Graph Embedding (KGE) aims to represent entities and relations of knowledge graph in a low-dimensional continuous vector space. Recent works focus on incorporating structural knowledge with additional information, such as entity…

Computation and Language · Computer Science 2018-08-14 Kai Wang , Yu Liu , Xiujuan Xu , Dan Lin

Among the top approaches of recent years, link prediction using knowledge graph embedding (KGE) models has gained significant attention for knowledge graph completion. Various embedding models have been proposed so far, among which, some…

Artificial Intelligence · Computer Science 2021-06-01 Chengjin Xu , Mojtaba Nayyeri , Sahar Vahdati , Jens Lehmann

Many knowledge graph embedding (KGE) models for link prediction use powerful encoders. However, they often rely on a simple hidden vector-matrix multiplication to score subject-relation queries against candidate object entities. When the…

Artificial Intelligence · Computer Science 2025-09-30 Samy Badreddine , Emile van Krieken , Luciano Serafini

Advances in information extraction have enabled the automatic construction of large knowledge graphs (e.g., Yago, Wikidata or Google KG), which are widely used in many applications like semantic search or data analytics. However, due to…

Computation and Language · Computer Science 2024-09-13 Zihang Peng , Daria Stepanova , Vinh Thinh Ho , Heike Adel , Alessandra Russo , Simon Ott

As large language models (LLMs) continue to grow in size, their abilities to tackle complex tasks have significantly improved. However, issues such as hallucination and the lack of up-to-date knowledge largely remain unresolved. Knowledge…

Artificial Intelligence · Computer Science 2026-03-17 Lihui Liu

As the field of Large Language Models (LLMs) evolves at an accelerated pace, the critical need to assess and monitor their performance emerges. We introduce a benchmarking framework focused on knowledge graph engineering (KGE) accompanied…

Artificial Intelligence · Computer Science 2023-09-01 Lars-Peter Meyer , Johannes Frey , Kurt Junghanns , Felix Brei , Kirill Bulert , Sabine Gründer-Fahrer , Michael Martin

Despite the recent popularity of knowledge graph (KG) related tasks and benchmarks such as KG embeddings, link prediction, entity alignment and evaluation of the reasoning abilities of pretrained language models as KGs, the structure and…

Machine Learning · Computer Science 2023-11-14 Nedelina Teneva , Estevam Hruschka

Knowledge Graph (KG) alignment is to discover the mappings (i.e., equivalent entities, relations, and others) between two KGs. The existing methods can be divided into the embedding-based models, and the conventional reasoning and lexical…

Computation and Language · Computer Science 2021-06-14 Zhiyuan Qi , Ziheng Zhang , Jiaoyan Chen , Xi Chen , Yuejia Xiang , Ningyu Zhang , Yefeng Zheng

Discovery gene-disease links is important in biology and medicine areas, enabling disease identification and drug repurposing. Machine learning approaches accelerate this process by leveraging biological knowledge represented in ontologies…

Machine Learning · Computer Science 2025-04-14 Catarina Canastra , Cátia Pesquita

Commonsense knowledge is paramount to enable intelligent systems. Typically, it is characterized as being implicit and ambiguous, hindering thereby the automation of its acquisition. To address these challenges, this paper presents…

Artificial Intelligence · Computer Science 2018-09-28 Ikhlas Alhussien , Erik Cambria , Zhang NengSheng