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Knowledge graphs are large, useful, but incomplete knowledge repositories. They encode knowledge through entities and relations which define each other through the connective structure of the graph. This has inspired methods for the joint…

Artificial Intelligence · Computer Science 2018-03-05 Bhushan Kotnis , Vivi Nastase

Knowledge graphs represent information as structured triples and serve as the backbone for a wide range of applications, including question answering, link prediction, and recommendation systems. A prominent line of research for exploring…

Machine Learning · Computer Science 2025-10-15 Rita T. Sousa , Heiko Paulheim

Embedding of a knowledge graph(KG) entities and relations in the form of vectors is an important aspect for the manipulation of the KG database for several downstream tasks, such as link prediction, knowledge graph completion, and…

Quantum Physics · Physics 2025-07-04 Pulak Ranjan Giri , Mori Kurokawa , Kazuhiro Saito

Knowledge Graph Embedding models have become an important area of machine learning.Those models provide a latent representation of entities and relations in a knowledge graph which can then be used in downstream machine learning tasks such…

Artificial Intelligence · Computer Science 2022-10-18 Md Rashad Al Hasan Rony , Mirza Mohtashim Alam , Semab Ali , Jens Lehmann , Sahar Vahdati

Knowledge Graph (KG) embedding is a fundamental problem in data mining research with many real-world applications. It aims to encode the entities and relations in the graph into low dimensional vector space, which can be used for subsequent…

Artificial Intelligence · Computer Science 2019-01-21 Yongqi Zhang , Quanming Yao , Yingxia Shao , Lei Chen

Knowledge Graph (KG) is a flexible structure that is able to describe the complex relationship between data entities. Currently, most KG embedding models are trained based on negative sampling, i.e., the model aims to maximize some…

Artificial Intelligence · Computer Science 2021-06-17 Zelong Li , Jianchao Ji , Zuohui Fu , Yingqiang Ge , Shuyuan Xu , Chong Chen , Yongfeng Zhang

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

The problem of knowledge graph (KG) reasoning has been widely explored by traditional rule-based systems and more recently by knowledge graph embedding methods. While logical rules can capture deterministic behavior in a KG they are brittle…

Artificial Intelligence · Computer Science 2020-09-24 Susheel Suresh , Jennifer Neville

As an efficient model for knowledge organization, the knowledge graph has been widely adopted in several fields, e.g., biomedicine, sociology, and education. And there is a steady trend of learning embedding representations of knowledge…

Computation and Language · Computer Science 2024-04-01 Siyu Yao , Ruijie Wang , Shen Sun , Derui Bu , Jun Liu

Knowledge Graph (KG) is a graph based data structure to represent facts of the world where nodes represent real world entities or abstract concept and edges represent relation between the entities. Graph as representation for knowledge has…

Social and Information Networks · Computer Science 2024-04-16 Manita Pote

Negative sampling, which samples negative triplets from non-observed ones in knowledge graph (KG), is an essential step in KG embedding. Recently, generative adversarial network (GAN), has been introduced in negative sampling. By sampling…

Machine Learning · Computer Science 2021-07-15 Yongqi Zhang , Quanming Yao , Lei Chen

In knowledge graph embedding, aside from positive triplets (ie: facts in the knowledge graph), the negative triplets used for training also have a direct influence on the model performance. In reality, since knowledge graphs are sparse and…

Artificial Intelligence · Computer Science 2025-10-28 Ran Liu , Zhongzhou Liu , Xiaoli Li , Hao Wu , Yuan Fang

Knowledge representation learning aims at modeling knowledge graph by encoding entities and relations into a low dimensional space. Most of the traditional works for knowledge embedding need negative sampling to minimize a margin-based…

Artificial Intelligence · Computer Science 2018-10-01 Peifeng Wang , Shuangyin Li , Rong pan

We introduce KBGAN, an adversarial learning framework to improve the performances of a wide range of existing knowledge graph embedding models. Because knowledge graphs typically only contain positive facts, sampling useful negative…

Computation and Language · Computer Science 2018-04-17 Liwei Cai , William Yang Wang

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

In this work, we propose the first quantum Ans\"atze for the statistical relational learning on knowledge graphs using parametric quantum circuits. We introduce two types of variational quantum circuits for knowledge graph embedding.…

Quantum Physics · Physics 2019-03-05 Yunpu Ma , Volker Tresp , Liming Zhao , Yuyi Wang

The objective of knowledge graph embedding is to encode both entities and relations of knowledge graphs into continuous low-dimensional vector spaces. Previously, most works focused on symbolic representation of knowledge graph with…

Computation and Language · Computer Science 2016-12-14 Jiacheng Xu , Kan Chen , Xipeng Qiu , Xuanjing Huang

In recent years, we have witnessed the proliferation of knowledge graphs (KG) in various domains, aiming to support applications like question answering, recommendations, etc. A frequent task when integrating knowledge from different KGs is…

Databases · Computer Science 2023-06-08 Nikolaos Fanourakis , Vasilis Efthymiou , Dimitris Kotzinos , Vassilis Christophides

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 (KG) completion is an important task that greatly benefits knowledge discovery in many fields (e.g. biomedical research). In recent years, learning KG embeddings to perform this task has received considerable attention.…

Machine Learning · Computer Science 2022-08-01 Adil Bahaj , Safae Lhazmir , Mounir Ghogho
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