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Graph contrastive learning has gained significant progress recently. However, existing works have rarely explored non-aligned node-node contrasting. In this paper, we propose a novel graph contrastive learning method named RoSA that focuses…

Machine Learning · Computer Science 2022-05-03 Yun Zhu , Jianhao Guo , Fei Wu , Siliang Tang

Self-supervised learning has gained popularity because of its ability to avoid the cost of annotating large-scale datasets. It is capable of adopting self-defined pseudo labels as supervision and use the learned representations for several…

Computer Vision and Pattern Recognition · Computer Science 2021-02-09 Ashish Jaiswal , Ashwin Ramesh Babu , Mohammad Zaki Zadeh , Debapriya Banerjee , Fillia Makedon

Entity alignment (EA) seeks identical entities in different knowledge graphs, which is a long-standing task in the database research. Recent work leverages deep learning to embed entities in vector space and align them via nearest neighbor…

Computation and Language · Computer Science 2024-03-22 Xiaobin Tian , Zequn Sun , Wei Hu

Joint representation learning over multi-sourced knowledge graphs (KGs) yields transferable and expressive embeddings that improve downstream tasks. Entity alignment (EA) is a critical step in this process. Despite recent considerable…

Machine Learning · Computer Science 2023-06-06 Zequn Sun , Jiacheng Huang , Xiaozhou Xu , Qijin Chen , Weijun Ren , Wei Hu

Entity alignment(EA) is a crucial task for integrating cross-lingual and cross-domain knowledge graphs(KGs), which aims to discover entities referring to the same real-world object from different KGs. Most existing methods generate aligning…

Computation and Language · Computer Science 2023-05-03 Zhishuo Zhang , Chengxiang Tan , Haihang Wang , Xueyan Zhao , Min Yang

We present a contrasting learning approach with data augmentation techniques to learn document representations in an unsupervised manner. Inspired by recent contrastive self-supervised learning algorithms used for image and NLP pretraining,…

Computation and Language · Computer Science 2021-03-29 Dongsheng Luo , Wei Cheng , Jingchao Ni , Wenchao Yu , Xuchao Zhang , Bo Zong , Yanchi Liu , Zhengzhang Chen , Dongjin Song , Haifeng Chen , Xiang Zhang

EEG signals have been reported to be informative and reliable for emotion recognition in recent years. However, the inter-subject variability of emotion-related EEG signals still poses a great challenge for the practical applications of…

Human-Computer Interaction · Computer Science 2022-04-07 Xinke Shen , Xianggen Liu , Xin Hu , Dan Zhang , Sen Song

Multi-modal entity alignment (MMEA) aims to discover identical entities across different knowledge graphs (KGs) whose entities are associated with relevant images. However, current MMEA algorithms rely on KG-level modality fusion strategies…

Artificial Intelligence · Computer Science 2023-08-01 Zhuo Chen , Jiaoyan Chen , Wen Zhang , Lingbing Guo , Yin Fang , Yufeng Huang , Yichi Zhang , Yuxia Geng , Jeff Z. Pan , Wenting Song , Huajun Chen

Anomaly detection aims at identifying deviant instances from the normal data distribution. Many advances have been made in the field, including the innovative use of unsupervised contrastive learning. However, existing methods generally…

Computer Vision and Pattern Recognition · Computer Science 2022-01-04 Sungwon Han , Hyeonho Song , Seungeon Lee , Sungwon Park , Meeyoung Cha

Graph representation learning has long been an important yet challenging task for various real-world applications. However, their downstream tasks are mainly performed in the settings of supervised or semi-supervised learning. Inspired by…

Machine Learning · Computer Science 2021-04-14 Shiyi Chen , Ziao Wang , Xinni Zhang , Xiaofeng Zhang , Dan Peng

Knowledge Graph Alignment (KGA) aims to integrate knowledge from multiple sources to address the limitations of individual Knowledge Graphs (KGs) in terms of coverage and depth. However, current KGA models fall short in achieving a…

Computation and Language · Computer Science 2024-07-26 Xiaohan Fang , Chaozhuo Li , Yi Zhao , Qian Zang , Litian Zhang , Jiquan Peng , Xi Zhang , Jibing Gong

To offer accurate and diverse recommendation services, recent methods use auxiliary information to foster the learning process of user and item representations. Many SOTA methods fuse different sources of information (user, item, knowledge…

Information Retrieval · Computer Science 2022-11-14 Haolun Wu , Yingxue Zhang , Chen Ma , Wei Guo , Ruiming Tang , Xue Liu , Mark Coates

Self-supervised learning of graph neural networks (GNNs) aims to learn an accurate representation of the graphs in an unsupervised manner, to obtain transferable representations of them for diverse downstream tasks. Predictive learning and…

Machine Learning · Computer Science 2022-10-11 Dongki Kim , Jinheon Baek , Sung Ju Hwang

Entity alignment is the task of finding entities representing the same real-world object in two knowledge graphs(KGs). Cross-lingual knowledge graph entity alignment aims to discover the cross-lingual links in the multi-language KGs, which…

Computation and Language · Computer Science 2022-05-10 Shanqing Yu , Shihan Zhang , Jianlin Zhang , Jiajun Zhou , Qi Xuan , Bing Li , Xiaojuan Hu

Self-supervised contrastive learning has demonstrated great potential in learning visual representations. Despite their success in various downstream tasks such as image classification and object detection, self-supervised pre-training for…

Computer Vision and Pattern Recognition · Computer Science 2022-10-12 Di Wu , Siyuan Li , Zelin Zang , Stan Z. Li

Multilingual knowledge graph (KG) embeddings provide latent semantic representations of entities and structured knowledge with cross-lingual inferences, which benefit various knowledge-driven cross-lingual NLP tasks. However, precisely…

Artificial Intelligence · Computer Science 2018-06-19 Muhao Chen , Yingtao Tian , Kai-Wei Chang , Steven Skiena , Carlo Zaniolo

Recently, contrastive self-supervised learning, where the proximity of representations is determined based on the identities of samples, has made remarkable progress in unsupervised representation learning. SimSiam is a well-known example…

Computer Vision and Pattern Recognition · Computer Science 2023-05-24 Kyoungmin Han , Minsik Lee

Pre-trained Language Models (PLMs) have shown superior performance on various downstream Natural Language Processing (NLP) tasks. However, conventional pre-training objectives do not explicitly model relational facts in text, which are…

Computation and Language · Computer Science 2021-05-27 Yujia Qin , Yankai Lin , Ryuichi Takanobu , Zhiyuan Liu , Peng Li , Heng Ji , Minlie Huang , Maosong Sun , Jie Zhou

Entity alignment (EA) aims to find equivalent entities in different knowledge graphs (KGs). Current EA approaches suffer from scalability issues, limiting their usage in real-world EA scenarios. To tackle this challenge, we propose LargeEA…

Databases · Computer Science 2021-12-14 Congcong Ge , Xiaoze Liu , Lu Chen , Baihua Zheng , Yunjun Gao

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…

Artificial Intelligence · Computer Science 2022-03-15 Kexuan Xin , Zequn Sun , Wen Hua , Bing Liu , Wei Hu , Jianfeng Qu , Xiaofang Zhou