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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

Dual-encoder-based neural retrieval models achieve appreciable performance and complement traditional lexical retrievers well due to their semantic matching capabilities, which makes them a common choice for hybrid IR systems. However,…

信息检索 · 计算机科学 2022-11-10 Jurek Leonhardt , Marcel Jahnke , Avishek Anand

Graph neural networks have been used for a variety of learning tasks, such as link prediction, node classification, and node clustering. Among them, link prediction is a relatively under-studied graph learning task, with current…

机器学习 · 计算机科学 2022-08-29 Xinxing Wu , Qiang Cheng

The recent development of artificial intelligence (AI) technology, especially the advance of deep neural network (DNN) technology, has revolutionized many fields. While DNN plays a central role in modern AI technology, it has been rarely…

机器学习 · 统计学 2023-12-07 Tingting Hou , Chang Jiang , Qing Lu

Network alignment, in general, seeks to discover the hidden underlying correspondence between nodes across two (or more) networks when given their network structure. However, most existing network alignment methods have added assumptions of…

社会与信息网络 · 计算机科学 2019-02-28 Tyler Derr , Hamid Karimi , Xiaorui Liu , Jiejun Xu , Jiliang Tang

Graph similarity search is among the most important graph-based applications, e.g. finding the chemical compounds that are most similar to a query compound. Graph similarity computation, such as Graph Edit Distance (GED) and Maximum Common…

机器学习 · 计算机科学 2020-03-03 Yunsheng Bai , Hao Ding , Song Bian , Ting Chen , Yizhou Sun , Wei Wang

The performance of decoders in Quantum Error Correction (QEC) is key to realizing practical quantum computers. In recent years, Graph Neural Networks (GNNs) have emerged as a promising approach, but their training methodologies are not yet…

量子物理 · 物理学 2025-08-07 Ryota Ikeda

Entity Alignment (EA) aims to find equivalent entity pairs between KGs, which is the core step of bridging and integrating multi-source KGs. In this paper, we argue that existing GNN-based EA methods inherit the inborn defects from their…

人工智能 · 计算机科学 2022-10-21 Xin Mao , Wenting Wang , Yuanbin Wu , Man Lan

Multi-Modal Entity Alignment (MMEA) is a critical task that aims to identify equivalent entity pairs across multi-modal knowledge graphs (MMKGs). However, this task faces challenges due to the presence of different types of information,…

计算与语言 · 计算机科学 2023-10-11 Qian Li , Cheng Ji , Shu Guo , Zhaoji Liang , Lihong Wang , Jianxin Li

Graph Neural Networks (GNNs) have been highly successful for the node classification task. GNNs typically assume graphs are homophilic, i.e. neighboring nodes are likely to belong to the same class. However, a number of real-world graphs…

机器学习 · 计算机科学 2024-09-20 Yurui Lai , Taiyan Zhang , Rui Fan

We study dangling-aware entity alignment in knowledge graphs (KGs), which is an underexplored but important problem. As different KGs are naturally constructed by different sets of entities, a KG commonly contains some dangling entities…

计算与语言 · 计算机科学 2022-05-06 Juncheng Liu , Zequn Sun , Bryan Hooi , Yiwei Wang , Dayiheng Liu , Baosong Yang , Xiaokui Xiao , Muhao Chen

Knowledge Graph (KG) embedding is a fundamental problem in data mining research with many real-world applications. It aims to encode the entities and relations in the graph into low dimensional vector space, which can be used for subsequent…

人工智能 · 计算机科学 2019-01-21 Yongqi Zhang , Quanming Yao , Yingxia Shao , Lei Chen

In this work, we focus on the problem of entity alignment in Knowledge Graphs (KG) and we report on our experiences when applying a Graph Convolutional Network (GCN) based model for this task. Variants of GCN are used in multiple…

机器学习 · 计算机科学 2021-05-27 Max Berrendorf , Evgeniy Faerman , Valentyn Melnychuk , Volker Tresp , Thomas Seidl

Entity alignment, aiming to identify equivalent entities across different knowledge graphs (KGs), is a fundamental problem for constructing large-scale KGs. Over the course of its development, supervision has been considered necessary for…

计算与语言 · 计算机科学 2021-08-26 Xiao Liu , Haoyun Hong , Xinghao Wang , Zeyi Chen , Evgeny Kharlamov , Yuxiao Dong , Jie Tang

Synthesising a text-to-image model of high-quality images by guiding the generative model through the Text description is an innovative and challenging task. In recent years, AttnGAN based on the Attention mechanism to guide GAN training…

计算机视觉与模式识别 · 计算机科学 2023-07-07 Mingyu Jin , Chong Zhang , Qinkai Yu , Haochen Xue , Xiaobo Jin , Xi Yang

Large Language Models (LLMs) excel at intuitive, implicit reasoning. Guiding LLMs to construct thought chains can enhance their deliberate reasoning abilities, but also faces challenges such as hallucination. Knowledge Graphs (KGs) can…

计算与语言 · 计算机科学 2025-03-07 Guangyi Liu , Yongqi Zhang , Yong Li , Quanming Yao

As one of the most fundamental tasks in graph theory, subgraph matching is a crucial task in many fields, ranging from information retrieval, computer vision, biology, chemistry and natural language processing. Yet subgraph matching problem…

机器学习 · 计算机科学 2022-09-19 Zixun Lan , Limin Yu , Linglong Yuan , Zili Wu , Qiang Niu , Fei Ma

We propose a unified framework for adaptive connection sampling in graph neural networks (GNNs) that generalizes existing stochastic regularization methods for training GNNs. The proposed framework not only alleviates over-smoothing and…

Deep neural networks (DNNs) have been proven to outperform classical methods on several machine learning benchmarks. However, they have high computational complexity and require powerful processing units. Especially when deployed on…

机器学习 · 计算机科学 2020-10-20 Lukas Enderich , Fabian Timm , Wolfram Burgard

We propose an Anderson Acceleration (AA) scheme for the adaptive Expectation-Maximization (EM) algorithm for unsupervised learning a finite mixture model from multivariate data (Figueiredo and Jain 2002). The proposed algorithm is able to…

机器学习 · 计算机科学 2020-09-29 Truong Nguyen , Guangye Chen , Luis Chacon