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Knowledge graph completion (KGC) has become a focus of attention across deep learning community owing to its excellent contribution to numerous downstream tasks. Although recently have witnessed a surge of work on KGC, they are still…

人工智能 · 计算机科学 2021-10-12 Junkang Wu , Wentao Shi , Xuezhi Cao , Jiawei Chen , Wenqiang Lei , Fuzheng Zhang , Wei Wu , Xiangnan He

The entity alignment of science and technology patents aims to link the equivalent entities in the knowledge graph of different science and technology patent data sources. Most entity alignment methods only use graph neural network to…

计算与语言 · 计算机科学 2023-11-02 Runze Fang , Yawen Li , Yingxia Shao , Zeli Guan , Zhe Xue

Joint entity and relation extraction is a process that identifies entity pairs and their relations using a single model. We focus on the problem of joint extraction in distantly-labeled data, whose labels are generated by aligning entity…

计算与语言 · 计算机科学 2024-05-28 Yufei Li , Xiao Yu , Yanghong Guo , Yanchi Liu , Haifeng Chen , Cong Liu

Can neural networks learn to compare graphs without feature engineering? In this paper, we show that it is possible to learn representations for graph similarity with neither domain knowledge nor supervision (i.e.\ feature engineering or…

机器学习 · 计算机科学 2019-04-23 Rami Al-Rfou , Dustin Zelle , Bryan Perozzi

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

Joint representation learning of words and entities benefits many NLP tasks, but has not been well explored in cross-lingual settings. In this paper, we propose a novel method for joint representation learning of cross-lingual words and…

计算与语言 · 计算机科学 2018-11-28 Yixin Cao , Lei Hou , Juanzi Li , Zhiyuan Liu , Chengjiang Li , Xu Chen , Tiansi Dong

Despite their large-scale coverage, cross-domain knowledge graphs invariably suffer from inherent incompleteness and sparsity. Link prediction can alleviate this by inferring a target entity, given a source entity and a query relation.…

计算与语言 · 计算机科学 2020-09-28 Rajarshi Bhowmik , Gerard de Melo

Entity alignment aims to identify equivalent entity pairs from different Knowledge Graphs (KGs), which is essential in integrating multi-source KGs. Recently, with the introduction of GNNs into entity alignment, the architectures of recent…

信息检索 · 计算机科学 2020-08-19 Xin Mao , Wenting Wang , Huimin Xu , Yuanbin Wu , Man Lan

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

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…

机器学习 · 计算机科学 2025-04-02 Antonis Klironomos , Baifan Zhou , Zhuoxun Zheng , Gad-Elrab Mohamed , Heiko Paulheim , Evgeny Kharlamov

Graph Anomaly Detection (GAD) aims to identify uncommon, deviated, or suspicious objects within graph-structured data. Existing methods generally focus on a single graph object type (node, edge, graph, etc.) and often overlook the inherent…

机器学习 · 计算机科学 2024-11-12 Yiqing Lin , Jianheng Tang , Chenyi Zi , H. Vicky Zhao , Yuan Yao , Jia Li

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…

机器学习 · 计算机科学 2021-02-16 Nasrullah Sheikh , Xiao Qin , Berthold Reinwald , Christoph Miksovic , Thomas Gschwind , Paolo Scotton

Anomaly detection has been considered under several extents of prior knowledge. Unsupervised methods do not require any labelled data, whereas semi-supervised methods leverage some known anomalies. Inspired by mixture-of-experts models and…

机器学习 · 计算机科学 2022-10-14 J. -P. Schulze , P. Sperl , K. Böttinger

Entity alignment is to find identical entities in different knowledge graphs. Although embedding-based entity alignment has recently achieved remarkable progress, training data insufficiency remains a critical challenge. Conventional…

人工智能 · 计算机科学 2022-03-15 Kexuan Xin , Zequn Sun , Wen Hua , Bing Liu , Wei Hu , Jianfeng Qu , Xiaofang Zhou

Cross-domain knowledge alignment is essential for integrating heterogeneous medical systems, yet existing approaches typically treat entity alignment as a static matching problem, ignoring query context and cross-system asymmetry. This…

人工智能 · 计算机科学 2026-05-19 Yan Jiao , Jingran Xu , Pin-Han Ho , Limei Peng

To build safe and reliable graph machine learning systems, unsupervised graph-level anomaly detection (GLAD) and unsupervised graph-level out-of-distribution (OOD) detection (GLOD) have received significant attention in recent years. Though…

机器学习 · 计算机科学 2025-04-07 Yili Wang , Yixin Liu , Xu Shen , Chenyu Li , Kaize Ding , Rui Miao , Ying Wang , Shirui Pan , Xin Wang

Precise event spotting (PES) aims to recognize fine-grained events at exact moments and has become a key component of sports analytics. This task is particularly challenging due to rapid succession, motion blur, and subtle visual…

计算机视觉与模式识别 · 计算机科学 2025-11-19 Zhaoyu Liu , Kan Jiang , Murong Ma , Zhe Hou , Yun Lin , Jin Song Dong

This paper focuses on the study of recognizing discontiguous entities. Motivated by a previous work, we propose to use a novel hypergraph representation to jointly encode discontiguous entities of unbounded length, which can overlap with…

计算与语言 · 计算机科学 2020-05-28 Aldrian Obaja Muis , Wei Lu

Deep learning-based edge detectors heavily rely on pixel-wise labels which are often provided by multiple annotators. Existing methods fuse multiple annotations using a simple voting process, ignoring the inherent ambiguity of edges and…

计算机视觉与模式识别 · 计算机科学 2023-03-22 Caixia Zhou , Yaping Huang , Mengyang Pu , Qingji Guan , Li Huang , Haibin Ling

Considering the wide application of network embedding methods in graph data mining, inspired by the adversarial attack in deep learning, this paper proposes a Genetic Algorithm (GA) based Euclidean Distance Attack strategy (EDA) to attack…

社会与信息网络 · 计算机科学 2019-11-11 Shanqing Yu , Jun Zheng , Jinhuan Wang , Jian Zhang , Lihong Chen , Qi Xuan , Jinyin Chen , Dan Zhang , Qingpeng Zhang