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Conventional Knowledge Graph Completion (KGC) assumes that all test entities appear during training. However, in real-world scenarios, Knowledge Graphs (KG) evolve fast with out-of-knowledge-graph (OOKG) entities added frequently, and we…

Computation and Language · Computer Science 2020-09-29 Damai Dai , Hua Zheng , Fuli Luo , Pengcheng Yang , Baobao Chang , Zhifang Sui

Knowledge graphs (KGs) are a popular way to organise information based on ontologies or schemas and have been used across a variety of scenarios from search to recommendation. Despite advances in KGs, representing knowledge remains a…

Artificial Intelligence · Computer Science 2023-10-10 Christos Theodoropoulos , Natasha Mulligan , Thaddeus Stappenbeck , Joao Bettencourt-Silva

Knowledge graph embedding (KGE) aims to learn continuous vectors of relations and entities in knowledge graph. Recently, transition-based KGE methods have achieved promising performance, where the single relation vector learns to translate…

Computation and Language · Computer Science 2022-05-02 Xuanyu Zhang , Qing Yang , Dongliang Xu

Knowledge graph (KG) reasoning is an important problem for knowledge graphs. In this paper, we propose a novel and principled framework called \textbf{RulE} (stands for {Rul}e {E}mbedding) to effectively leverage logical rules to enhance KG…

Artificial Intelligence · Computer Science 2024-05-21 Xiaojuan Tang , Song-Chun Zhu , Yitao Liang , Muhan Zhang

Continual Knowledge Graph Embedding (CKGE) seeks to integrate new knowledge while preserving past information. However, existing methods struggle with efficiency and scalability due to two key limitations: (1) suboptimal knowledge…

Computation and Language · Computer Science 2025-06-11 Lijing Zhu , Qizhen Lan , Qing Tian , Wenbo Sun , Li Yang , Lu Xia , Yixin Xie , Xi Xiao , Tiehang Duan , Cui Tao , Shuteng Niu

Extracting structured knowledge from texts has traditionally been used for knowledge base generation. However, other sources of information, such as images can be leveraged into this process to build more complete and richer knowledge…

Computer Vision and Pattern Recognition · Computer Science 2020-09-15 Ashutosh Tiwari , Sandeep Varma

Knowledge Graphs (KGs) are composed of structured information about a particular domain in the form of entities and relations. In addition to the structured information KGs help in facilitating interconnectivity and interoperability between…

Artificial Intelligence · Computer Science 2020-05-15 Genet Asefa Gesese , Russa Biswas , Mehwish Alam , Harald Sack

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

Motivation: Biomedical knowledge graphs (KGs) are crucial for drug discovery and disease understanding, yet their completion and reasoning are challenging. Knowledge Embedding (KE) methods capture global semantics but struggle with dynamic…

Artificial Intelligence · Computer Science 2025-07-23 Yitong Lin , Jiaying He , Jiahe Chen , Xinnan Zhu , Jianwei Zheng , Tao Bo

Knowledge Graphs (KG) provide us with a structured, flexible, transparent, cross-system, and collaborative way of organizing our knowledge and data across various domains in society and industrial as well as scientific disciplines. KGs…

Knowledge graphs are inherently incomplete. Therefore substantial research has been directed toward knowledge graph completion (KGC), i.e., predicting missing triples from the information represented in the knowledge graph (KG). KG…

Machine Learning · Computer Science 2023-03-23 Aleksandar Pavlović , Emanuel Sallinger

Most knowledge graph embedding (KGE) methods tailored for link prediction focus on the entities and relations in the graph, giving little attention to other literal values, which might encode important information. Therefore, some…

Machine Learning · Computer Science 2025-04-02 Antonis Klironomos , Baifan Zhou , Zhuoxun Zheng , Gad-Elrab Mohamed , Heiko Paulheim , Evgeny Kharlamov

Knowledge graph (KG) embedding methods learn geometric representations of entities and relations to predict plausible missing knowledge. These representations are typically assumed to capture rule-like inference patterns. However, our…

Artificial Intelligence · Computer Science 2025-07-29 Aleksandar Pavlovic , Emanuel Sallinger , Steven Schockaert

Knowledge graph (KG) embedding has been used to benefit the diagnosis of animal diseases by analyzing electronic medical records (EMRs), such as notes and veterinary records. However, learning representations to capture entities and…

Artificial Intelligence · Computer Science 2023-09-08 Van Thuy Hoang , Sang Thanh Nguyen , Sangmyeong Lee , Jooho Lee , Luong Vuong Nguyen , O-Joun Lee

Knowledge Graphs (KG) are gaining increasing attention in both academia and industry. Despite their diverse benefits, recent research have identified social and cultural biases embedded in the representations learned from KGs. Such biases…

Machine Learning · Computer Science 2021-02-22 Mario Arduini , Lorenzo Noci , Federico Pirovano , Ce Zhang , Yash Raj Shrestha , Bibek Paudel

Knowledge Graphs (KGs) are widely employed in artificial intelligence applications, such as question-answering and recommendation systems. However, KGs are frequently found to be incomplete. While much of the existing literature focuses on…

Artificial Intelligence · Computer Science 2024-06-28 Sakher Khalil Alqaaidi , Krzysztof Kochut

Knowledge Graphs (KG) and associated Knowledge Graph Embedding (KGE) models have recently begun to be explored in the context of drug discovery and have the potential to assist in key challenges such as target identification. In the drug…

Biomolecules · Quantitative Biology 2022-06-01 Stephen Bonner , Ian P Barrett , Cheng Ye , Rowan Swiers , Ola Engkvist , Charles Tapley Hoyt , William L Hamilton

In this work, we aim to leverage prior symbolic knowledge to improve the performance of deep models. We propose a graph embedding network that projects propositional formulae (and assignments) onto a manifold via an augmented Graph…

Artificial Intelligence · Computer Science 2019-10-30 Yaqi Xie , Ziwei Xu , Mohan S. Kankanhalli , Kuldeep S. Meel , Harold Soh

Knowledge graph (KG) entity typing aims at inferring possible missing entity type instances in KG, which is a very significant but still under-explored subtask of knowledge graph completion. In this paper, we propose a novel approach for KG…

Computation and Language · Computer Science 2020-07-22 Yu Zhao , Anxiang Zhang , Ruobing Xie , Kang Liu , Xiaojie Wang

This paper proposes a discrete knowledge graph (KG) embedding (DKGE) method, which projects KG entities and relations into the Hamming space based on a computationally tractable discrete optimization algorithm, to solve the formidable…

Information Retrieval · Computer Science 2021-01-14 Yunqi Li , Shuyuan Xu , Bo Liu , Zuohui Fu , Shuchang Liu , Xu Chen , Yongfeng Zhang