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Entity alignment (EA) is the task to discover entities referring to the same real-world object from different knowledge graphs (KGs), which is the most crucial step in integrating multi-source KGs. The majority of the existing…

计算与语言 · 计算机科学 2021-03-02 Renbo Zhu , Meng Ma , Ping Wang

Entity alignment is a crucial task in knowledge graph fusion. However, most entity alignment approaches have the scalability problem. Recent methods address this issue by dividing large KGs into small blocks for embedding and alignment…

机器学习 · 计算机科学 2022-08-25 Kexuan Xin , Zequn Sun , Wen Hua , Wei Hu , Jianfeng Qu , Xiaofang Zhou

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…

数据库 · 计算机科学 2023-06-08 Nikolaos Fanourakis , Vasilis Efthymiou , Dimitris Kotzinos , Vassilis Christophides

Standard representational similarity methods align each layer of a network to its best match in another independently, producing asymmetric results, lacking a global alignment score, and struggling with networks of different depths. These…

机器学习 · 计算机科学 2026-04-23 Shaan Shah , Meenakshi Khosla

Optimal transport (OT) compares probability distributions by computing a meaningful alignment between their samples. CO-optimal transport (COOT) takes this comparison further by inferring an alignment between features as well. While this…

Multi-label image classification is a critical task in machine learning that aims to accurately assign multiple labels to a single image. While existing methods often utilize attention mechanisms or graph convolutional networks to model…

计算机视觉与模式识别 · 计算机科学 2025-11-04 Ren-Dong Xie , Zhi-Fen He , Bo Li , Bin Liu , Jin-Yan Hu

Vision-language pre-training (VLP) models demonstrate impressive abilities in processing both images and text. However, they are vulnerable to multi-modal adversarial examples (AEs). Investigating the generation of high-transferability…

计算机视觉与模式识别 · 计算机科学 2023-12-08 Dongchen Han , Xiaojun Jia , Yang Bai , Jindong Gu , Yang Liu , Xiaochun Cao

Open-vocabulary object detection (OVD) aims to recognize and localize object categories beyond the training set. Recent approaches leverage vision-language models to generate pseudo-labels using image-text alignment, allowing detectors to…

计算机视觉与模式识别 · 计算机科学 2026-03-19 Hojun Choi , Youngsun Lim , Jaeyo Shin , Hyunjung Shim

Entity synonyms discovery is crucial for entity-leveraging applications. However, existing studies suffer from several critical issues: (1) the input mentions may be out-of-vocabulary (OOV) and may come from a different semantic space of…

人工智能 · 计算机科学 2021-04-02 Yiying Yang , Xi Yin , Haiqin Yang , Xingjian Fei , Hao Peng , Kaijie Zhou , Kunfeng Lai , Jianping Shen

Entity linking - connecting entity mentions in a natural language utterance to knowledge graph (KG) entities is a crucial step for question answering over KGs. It is often based on measuring the string similarity between the entity label…

计算与语言 · 计算机科学 2020-02-27 Rostislav Nedelchev , Debanjan Chaudhuri , Jens Lehmann , Asja Fischer

The inherent safety alignment of Large Language Models (LLMs) is prone to erosion during fine-tuning, even when using seemingly innocuous datasets. While existing defenses attempt to mitigate this via data selection, they typically rely on…

机器学习 · 计算机科学 2026-01-13 Haozhong Wang , Zhuo Li , Yibo Yang , He Zhao , Hongyuan Zha , Dandan Guo

Optimal transport (OT) is a powerful geometric and probabilistic tool for finding correspondences and measuring similarity between two distributions. Yet, its original formulation relies on the existence of a cost function between the…

机器学习 · 统计学 2020-11-09 Ievgen Redko , Titouan Vayer , Rémi Flamary , Nicolas Courty

Optimal transport (OT) is attracting increasing attention in machine learning. It aims to transport a source distribution to a target one at minimal cost. In its vanilla form, the source and target distributions are predetermined, which…

机器学习 · 计算机科学 2024-01-23 Liangliang Shi , Zhaoqi Shen , Junchi Yan

This paper studies a new problem setting of entity alignment for knowledge graphs (KGs). Since KGs possess different sets of entities, there could be entities that cannot find alignment across them, leading to the problem of dangling…

计算与语言 · 计算机科学 2021-06-07 Zequn Sun , Muhao Chen , Wei Hu

Self-supervised entity alignment (EA) aims to link equivalent entities across different knowledge graphs (KGs) without seed alignments. The current SOTA self-supervised EA method draws inspiration from contrastive learning, originally…

计算与语言 · 计算机科学 2022-10-11 Kaisheng Zeng , Zhenhao Dong , Lei Hou , Yixin Cao , Minghao Hu , Jifan Yu , Xin Lv , Juanzi Li , Ling Feng

The objective in statistical Optimal Transport (OT) is to consistently estimate the optimal transport plan/map solely using samples from the given source and target marginal distributions. This work takes the novel approach of posing…

机器学习 · 计算机科学 2020-11-11 J. Saketha Nath , Pratik Jawanpuria

Entity alignment aims to use pre-aligned seed pairs to find other equivalent entities from different knowledge graphs (KGs) and is widely used in graph fusion-related fields. However, as the scale of KGs increases, manually annotating…

计算与语言 · 计算机科学 2025-03-28 Tao Meng , Shuo Shan , Hongen Shao , Yuntao Shou , Wei Ai , Keqin Li

Knowledge Graph (KG) alignment is to discover the mappings (i.e., equivalent entities, relations, and others) between two KGs. The existing methods can be divided into the embedding-based models, and the conventional reasoning and lexical…

计算与语言 · 计算机科学 2021-06-14 Zhiyuan Qi , Ziheng Zhang , Jiaoyan Chen , Xi Chen , Yuejia Xiang , Ningyu Zhang , Yefeng Zheng

We address the convergence problem in learning the Optimal Transport (OT) map, where the OT Map refers to a map from one distribution to another while minimizing the transport cost. Semi-dual Neural OT, a widely used approach for learning…

机器学习 · 计算机科学 2026-02-03 Jaemoo Choi , Jaewoong Choi , Dohyun Kwon

Entity alignment (EA) is to discover equivalent entities in knowledge graphs (KGs), which bridges heterogeneous sources of information and facilitates the integration of knowledge. Existing EA solutions mainly rely on structural information…

人工智能 · 计算机科学 2020-05-26 Weixin Zeng , Xiang Zhao , Wei Wang , Jiuyang Tang , Zhen Tan