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Knowledge Graph Embedding (KGE) is a common approach for Knowledge Graphs (KGs) in AI tasks. Embedding dimensions depend on application scenarios. Requiring a new dimension means training a new KGE model from scratch, increasing cost and…

人工智能 · 计算机科学 2025-06-13 Yushan Zhu , Wen Zhang , Zhiqiang Liu , Mingyang Chen , Lei Liang , Huajun Chen

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…

人工智能 · 计算机科学 2018-03-05 Bhushan Kotnis , Vivi Nastase

Knowledge-intensive tasks pose a significant challenge for Machine Learning (ML) techniques. Commonly adopted methods, such as Large Language Models (LLMs), often exhibit limitations when applied to such tasks. Nevertheless, there have been…

机器学习 · 计算机科学 2024-05-20 Albert Sawczyn , Jakub Binkowski , Piotr Bielak , Tomasz Kajdanowicz

Knowledge Graph based Retrieval-Augmented Generation (KG-RAG) is a technique that enhances Large Language Model (LLM) inference in tasks like Question Answering (QA) by retrieving relevant information from knowledge graphs (KGs). However,…

人工智能 · 计算机科学 2025-09-01 Dongzhuoran Zhou , Yuqicheng Zhu , Xiaxia Wang , Yuan He , Jiaoyan Chen , Steffen Staab , Evgeny Kharlamov

Knowledge graph embedding (KGE) aims to map entities and relations of a knowledge graph (KG) into a low-dimensional and dense vector space via contrasting the positive and negative triples. In the training process of KGEs, negative sampling…

人工智能 · 计算机科学 2023-10-17 Xiangnan Chen , Wen Zhang , Zhen Yao , Mingyang Chen , Siliang Tang

Domain Adaptation is an actively researched problem in Computer Vision. In this work, we propose an approach that leverages unsupervised data to bring the source and target distributions closer in a learned joint feature space. We…

计算机视觉与模式识别 · 计算机科学 2018-04-16 Swami Sankaranarayanan , Yogesh Balaji , Carlos D. Castillo , Rama Chellappa

A fundamental task for knowledge graphs (KGs) is knowledge graph completion (KGC). It aims to predict unseen edges by learning representations for all the entities and relations in a KG. A common concern when learning representations on…

机器学习 · 计算机科学 2023-02-13 Harry Shomer , Wei Jin , Wentao Wang , Jiliang Tang

Generative artificial intelligence has transformed the generation of synthetic data, providing innovative solutions to challenges like data scarcity and privacy, which are particularly critical in fields such as medicine. However, the…

计算机视觉与模式识别 · 计算机科学 2024-07-31 Eugenio Lomurno , Matteo Matteucci

Performance achievable by modern deep learning approaches are directly related to the amount of data used at training time. Unfortunately, the annotation process is notoriously tedious and expensive, especially for pixel-wise tasks like…

计算机视觉与模式识别 · 计算机科学 2018-10-16 Pierluigi Zama Ramirez , Alessio Tonioni , Luigi Di Stefano

Embedding entities and relations into a continuous multi-dimensional vector space have become the dominant method for knowledge graph embedding in representation learning. However, most existing models ignore to represent hierarchical…

人工智能 · 计算机科学 2019-09-12 Cunxiang Wang , Feiliang Ren , Zhichao Lin , Chenxv Zhao , Tian Xie , Yue Zhang

A knowledge graph (KG) is a data structure which represents entities and relations as the vertices and edges of a directed graph with edge types. KGs are an important primitive in modern machine learning and artificial intelligence.…

人工智能 · 计算机科学 2021-10-20 Michael R. Douglas , Michael Simkin , Omri Ben-Eliezer , Tianqi Wu , Peter Chin , Trung V. Dang , Andrew Wood

Although product graphs (PGs) have gained increasing attentions in recent years for their successful applications in product search and recommendations, the extensive power of PGs can be limited by the inevitable involvement of various…

社会与信息网络 · 计算机科学 2022-02-22 Kewei Cheng , Xian Li , Yifan Ethan Xu , Xin Luna Dong , Yizhou Sun

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…

量子物理 · 物理学 2025-02-26 Pulak Ranjan Giri , Mori Kurokawa , Kazuhiro Saito

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…

计算与语言 · 计算机科学 2018-08-14 Kai Wang , Yu Liu , Xiujuan Xu , Dan Lin

Generative Adversarial Networks (GANs) are gaining increasing attention as a means for synthesising data. So far much of this work has been applied to use cases outside of the data confidentiality domain with a common application being the…

机器学习 · 计算机科学 2021-12-06 Claire Little , Mark Elliot , Richard Allmendinger , Sahel Shariati Samani

Knowledge graph completion (KGC) aims to reason over known facts and infer the missing links. Text-based methods such as KGBERT (Yao et al., 2019) learn entity representations from natural language descriptions, and have the potential for…

计算与语言 · 计算机科学 2022-03-07 Liang Wang , Wei Zhao , Zhuoyu Wei , Jingming Liu

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…

数据库 · 计算机科学 2022-06-02 Tianxing Wu , Arijit Khan , Melvin Yong , Guilin Qi , Meng Wang

Knowledge graph embedding (KGE) is an increasingly popular technique that aims to represent entities and relations of knowledge graphs into low-dimensional semantic spaces for a wide spectrum of applications such as link prediction,…

机器学习 · 计算机科学 2023-10-17 Jiahang Cao , Jinyuan Fang , Zaiqiao Meng , Shangsong Liang

Representation Learning on Knowledge Graphs (KGs) is essential for downstream tasks. The dominant approach, KG Embedding (KGE), represents entities with independent vectors and faces the scalability challenge. Recent studies propose an…

人工智能 · 计算机科学 2023-10-25 Jiaang Li , Quan Wang , Yi Liu , Licheng Zhang , Zhendong Mao

The integration of privacy measures, including differential privacy techniques, ensures a provable privacy guarantee for the synthetic data. However, challenges arise for Generative Deep Learning models when tasked with generating realistic…

机器学习 · 计算机科学 2024-09-27 Anantaa Kotal , Anupam Joshi