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The ability of knowledge graphs to represent complex relationships at scale has led to their adoption for various needs including knowledge representation, question-answering, and recommendation systems. Knowledge graphs are often…

Computation and Language · Computer Science 2023-05-18 Jason Youn , Ilias Tagkopoulos

In recent years, Knowledge Graph (KG) development has attracted significant researches considering the applications in web search, relation prediction, natural language processing, information retrieval, question answering to name a few.…

Information Retrieval · Computer Science 2022-05-19 Satvik Garg , Dwaipayan Roy

Knowledge graphs (KGs) play a crucial role in many applications, such as question answering, but incompleteness is an urgent issue for their broad application. Much research in knowledge graph completion (KGC) has been performed to resolve…

Artificial Intelligence · Computer Science 2023-01-10 Yinyu Lan , Shizhu He , Kang Liu , Jun Zhao

Knowledge graph (KG) embedding aims at learning the latent representations for entities and relations of a KG in continuous vector spaces. An empirical observation is that the head (tail) entities connected by the same relation often share…

Computation and Language · Computer Science 2022-06-17 Xueliang Wang , Jiajun Chen , Feng Wu , Jie Wang

Knowledge graph embedding (KGE) models represent each entity and relation of a knowledge graph (KG) with low-dimensional embedding vectors. These methods have recently been applied to KG link prediction and question answering over…

Computation and Language · Computer Science 2022-03-22 Apoorv Saxena , Adrian Kochsiek , Rainer Gemulla

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

Knowledge Graphs (KGs) and their machine learning counterpart, Knowledge Graph Embedding Models (KGEMs), have seen ever-increasing use in a wide variety of academic and applied settings. In particular, KGEMs are typically applied to KGs to…

Machine Learning · Computer Science 2024-12-16 Jeffrey Sardina , John D. Kelleher , Declan O'Sullivan

Learning knowledge graph (KG) embeddings has received increasing attention in recent years. Most embedding models in literature interpret relations as linear or bilinear mapping functions to operate on entity embeddings. However, we find…

Artificial Intelligence · Computer Science 2020-04-29 Zequn Sun , Jiacheng Huang , Wei Hu , Muchao Chen , Lingbing Guo , Yuzhong Qu

Knowledge graphs (KGs), i.e. representation of information as a semantic graph, provide a significant test bed for many tasks including question answering, recommendation, and link prediction. Various amount of scholarly metadata have been…

Artificial Intelligence · Computer Science 2019-04-30 Mojtaba Nayyeri , Sahar Vahdati , Jens Lehmann , Hamed Shariat Yazdi

Knowledge graphs (KGs) that modelings the world knowledge as structural triples are inevitably incomplete. Such problems still exist for multimodal knowledge graphs (MMKGs). Thus, knowledge graph completion (KGC) is of great importance to…

Artificial Intelligence · Computer Science 2022-09-16 Yichi Zhang , Wen Zhang

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 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 Graphs (KGs), representing facts as triples, have been widely adopted in many applications. Reasoning tasks such as link prediction and rule induction are important for the development of KGs. Knowledge Graph Embeddings (KGEs)…

Artificial Intelligence · Computer Science 2021-12-17 Wen Zhang , Shumin Deng , Mingyang Chen , Liang Wang , Qiang Chen , Feiyu Xiong , Xiangwen Liu , Huajun Chen

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

The incompleteness of Knowledge Graphs (KGs) is a crucial issue affecting the quality of AI-based services. In the scholarly domain, KGs describing research publications typically lack important information, hindering our ability to analyse…

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

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

Information extraction methods proved to be effective at triple extraction from structured or unstructured data. The organization of such triples in the form of (head entity, relation, tail entity) is called the construction of Knowledge…

Artificial Intelligence · Computer Science 2022-08-25 Mohamad Zamini , Hassan Reza , Minou Rabiei

Knowledge graphs (KGs), as structured representations of real world facts, are intelligent databases incorporating human knowledge that can help machine imitate the way of human problem solving. However, KGs are usually huge and there are…

Machine Learning · Computer Science 2023-06-27 Haotian Li , Hongri Liu , Yao Wang , Guodong Xin , Yuliang Wei

Knowledge Graph embedding provides a versatile technique for representing knowledge. These techniques can be used in a variety of applications such as completion of knowledge graph to predict missing information, recommender systems,…

Information Retrieval · Computer Science 2021-07-19 Shivani Choudhary , Tarun Luthra , Ashima Mittal , Rajat Singh