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Knowledge graph embedding methods learn embeddings of entities and relations in a low dimensional space which can be used for various downstream machine learning tasks such as link prediction and entity matching. Various graph convolutional…

Machine Learning · Computer Science 2021-02-16 Nasrullah Sheikh , Xiao Qin , Berthold Reinwald , Christoph Miksovic , Thomas Gschwind , Paolo Scotton

Knowledge graph is a collection of facts, known as triples(head, relation, tail), which are represented in form of a network, where nodes are entities and edges are relations among the respective head and tail entities. Embedding of…

Quantum Physics · Physics 2025-02-26 Pulak Ranjan Giri , Mori Kurokawa , Kazuhiro Saito

Knowledge Graph Embeddings (KGE) have become a quite popular class of models specifically devised to deal with ontologies and graph structure data, as they can implicitly encode statistical dependencies between entities and relations in a…

Artificial Intelligence · Computer Science 2023-03-27 Michelangelo Diligenti , Francesco Giannini , Stefano Fioravanti , Caterina Graziani , Moreno Falaschi , Giuseppe Marra

Graph neural networks (GNNs) have been increasingly deployed in various applications that involve learning on non-Euclidean data. However, recent studies show that GNNs are vulnerable to graph adversarial attacks. Although there are several…

Machine Learning · Computer Science 2023-01-10 Chenhui Deng , Xiuyu Li , Zhuo Feng , Zhiru Zhang

Knowledge graph (KG) reasoning is becoming increasingly popular in both academia and industry. Conventional KG reasoning based on symbolic logic is deterministic, with reasoning results being explainable, while modern embedding-based…

Artificial Intelligence · Computer Science 2022-02-16 Wen Zhang , Jiaoyan Chen , Juan Li , Zezhong Xu , Jeff Z. Pan , Huajun Chen

Continual Knowledge Graph Embedding (CKGE) aims to efficiently learn new knowledge and simultaneously preserve old knowledge. Dominant approaches primarily focus on alleviating catastrophic forgetting of old knowledge but neglect efficient…

Artificial Intelligence · Computer Science 2024-07-09 Jiajun Liu , Wenjun Ke , Peng Wang , Jiahao Wang , Jinhua Gao , Ziyu Shang , Guozheng Li , Zijie Xu , Ke Ji , Yining Li

Knowledge graph (KG) reasoning is a task that aims to predict unknown facts based on known factual samples. Reasoning methods can be divided into two categories: rule-based methods and KG-embedding based methods. The former possesses…

Artificial Intelligence · Computer Science 2024-07-08 Fengsong Sun , Jinyu Wang , Zhiqing Wei , Xianchao Zhang

Knowledge graph embedding (KGE) constitutes a foundational task, directed towards learning representations for entities and relations within knowledge graphs (KGs), with the objective of crafting representations comprehensive enough to…

Artificial Intelligence · Computer Science 2024-09-10 Yang Liu , Chuan Zhou , Peng Zhang , Yanan Cao , Yongchao Liu , Zhao Li , Hongyang Chen

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

In this paper, we investigate the dynamics-aware adversarial attack problem of adaptive neural networks. Most existing adversarial attack algorithms are designed under a basic assumption -- the network architecture is fixed throughout the…

Computer Vision and Pattern Recognition · Computer Science 2024-01-12 An Tao , Yueqi Duan , Yingqi Wang , Jiwen Lu , Jie Zhou

Large language models (LLMs) have garnered significant attention for their superior performance in many knowledge-driven applications on the world wide web.These models are designed to train hundreds of millions or more parameters on large…

Computation and Language · Computer Science 2025-04-09 Bingchen Liu , Yuanyuan Fang , Naixing Xu , Shihao Hou , Xin Li , Qian Li

Existing knowledge graphs (KGs) inevitably contain outdated or erroneous knowledge that needs to be removed from knowledge graph embedding (KGE) models. To address this challenge, knowledge unlearning can be applied to eliminate specific…

Artificial Intelligence · Computer Science 2025-07-29 Jiajun Liu , Wenjun Ke , Peng Wang , Yao He , Ziyu Shang , Guozheng Li , Zijie Xu , Ke Ji

With the success of the graph embedding model in both academic and industry areas, the robustness of graph embedding against adversarial attack inevitably becomes a crucial problem in graph learning. Existing works usually perform the…

Machine Learning · Computer Science 2022-03-02 Heng Chang , Yu Rong , Tingyang Xu , Wenbing Huang , Honglei Zhang , Peng Cui , Xin Wang , Wenwu Zhu , Junzhou Huang

Text-attributed graphs (TAGs) enhance graph learning by integrating rich textual semantics and topological context for each node. While boosting expressiveness, they also expose new vulnerabilities in graph learning through text-based…

Artificial Intelligence · Computer Science 2026-03-24 Zihui Chen , Yuling Wang , Pengfei Jiao , Kai Wu , Xiao Wang , Xiang Ao , Dalin Zhang

Graph neural networks (GNNs) are widely used for learning from graph-structured data in domains such as social networks, recommender systems, and financial platforms. To comply with privacy regulations like the GDPR, CCPA, and PIPEDA,…

Machine Learning · Computer Science 2026-03-20 Jiahao Zhang , Yilong Wang , Suhang Wang

A key to knowledge graph embedding (KGE) is to choose a proper representation space, e.g., point-wise Euclidean space and complex vector space. In this paper, we propose a unified perspective of embedding and introduce uncertainty into KGE…

Machine Learning · Computer Science 2024-10-01 Changyi Xiao , Xiangnan He , Yixin Cao

Knowledge graph (KG) inference aims to address the natural incompleteness of KGs, including rule learning-based and KG embedding (KGE) models. However, the rule learning-based models suffer from low efficiency and generalization while KGE…

Artificial Intelligence · Computer Science 2022-08-23 Guanglin Niu , Bo Li , Yongfei Zhang , Shiliang Pu

Adversarial training is an approach for increasing model's resilience against adversarial perturbations. Such approaches have been demonstrated to result in models with feature representations that generalize better. However, limited works…

Machine Learning · Computer Science 2021-08-05 Tianjin Huang , Yulong Pei , Vlado Menkovski , Mykola Pechenizkiy

Knowledge Graphs (KGs) have seen increasing use across various domains -- from biomedicine and linguistics to general knowledge modelling. In order to facilitate the analysis of knowledge graphs, Knowledge Graph Embeddings (KGEs) have been…

Machine Learning · Computer Science 2024-12-20 Jeffrey Sardina , John D. Kelleher , Declan O'Sullivan

Deep learning methods for graphs achieve remarkable performance across a variety of domains. However, recent findings indicate that small, unnoticeable perturbations of graph structure can catastrophically reduce performance of even the…

Machine Learning · Computer Science 2020-10-29 Xiang Zhang , Marinka Zitnik