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Graph pattern mining methods can extract informative and useful patterns from large-scale graphs and capture underlying principles through the overwhelmed information. Contrast analysis serves as a keystone in various fields and has…

社会与信息网络 · 计算机科学 2018-02-20 Jingbo Shang , Xiyao Shi , Meng Jiang , Liyuan Liu , Timothy Hanratty , Jiawei Han

Self-supervised heterogeneous graph learning (SHGL) has shown promising potential in diverse scenarios. However, while existing SHGL methods share a similar essential with clustering approaches, they encounter two significant limitations:…

人工智能 · 计算机科学 2024-12-03 Yujie Mo , Zhihe Lu , Runpeng Yu , Xiaofeng Zhu , Xinchao Wang

Recently, micro-video sharing platforms such as Kuaishou and Tiktok have become a major source of information for people's lives. Thanks to the large traffic volume, short video lifespan and streaming fashion of these services, it has…

信息检索 · 计算机科学 2021-09-29 Yiyu Liu , Qian Liu , Yu Tian , Changping Wang , Yanan Niu , Yang Song , Chenliang Li

Knowledge graph embedding (KGE), aiming to embed entities and relations into low-dimensional vectors, has attracted wide attention recently. However, the existing research is mainly based on the black-box neural models, which makes it…

计算与语言 · 计算机科学 2020-11-13 Xiaoyu Kou , Yankai Lin , Yuntao Li , Jiahao Xu , Peng Li , Jie Zhou , Yan Zhang

Cross-lingual entity alignment (EA) enables the integration of multiple knowledge graphs (KGs) across different languages, providing users with seamless access to diverse and comprehensive knowledge. Existing methods, mostly supervised,…

计算与语言 · 计算机科学 2025-02-13 Soojin Yoon , Sungho Ko , Tongyoung Kim , SeongKu Kang , Jinyoung Yeo , Dongha Lee

In recent years, the use of edge information provided by knowledge graphs together with the advantages of higher-order connectivity in graph neural networks for recommendation systems has become an important research direction. However,…

信息检索 · 计算机科学 2026-05-12 Zhifei Hu , Feng Xia

Recently, denoising methods based on supervised learning have exhibited promising performance. However, their reliance on external datasets containing noisy-clean image pairs restricts their applicability. To address this limitation,…

计算机视觉与模式识别 · 计算机科学 2023-07-21 Jaekyun Ko , Sanghwan Lee

We present a deep neural network to reduce coherent noise in three-dimensional quantitative phase imaging. Inspired by the cycle generative adversarial network, the denoising network was trained to learn a transform between two image…

Knowledge graph reasoning is the fundamental component to support machine learning applications such as information extraction, information retrieval, and recommendation. Since knowledge graphs can be viewed as the discrete symbolic…

人工智能 · 计算机科学 2021-04-01 Jing Zhang , Bo Chen , Lingxi Zhang , Xirui Ke , Haipeng Ding

Subset repair is an important data cleaning technique that enforces integrity constraints by deleting a minimal number of conflicting tuples, yet multiple minimal repairs often exist. Density-based methods address this ambiguity by favoring…

数据库 · 计算机科学 2026-01-28 Guoqi Zhao , Xixian Han , Xiaolong Wan

An important structural feature of a graph is its set of edges, as it captures the relationships among the nodes (the graph's topology). Existing node label noise models like Symmetric Label Noise (SLN) and Class Conditional Noise (CCN)…

机器学习 · 计算机科学 2026-01-30 Pintu Kumar , Nandyala Hemachandra

Named entity recognition is a fundamental task in natural language processing, identifying the span and category of entities in unstructured texts. The traditional sequence labeling methodology ignores the nested entities, i.e. entities…

计算与语言 · 计算机科学 2022-10-24 Xueru Wen , Changjiang Zhou , Haotian Tang , Luguang Liang , Yu Jiang , Hong Qi

The Knowledge Graph Entity Typing (KGET) task aims to predict missing type annotations for entities in knowledge graphs. Recent works only utilize the \textit{\textbf{structural knowledge}} in the local neighborhood of entities,…

计算与语言 · 计算机科学 2024-11-18 Muzhi Li , Minda Hu , Irwin King , Ho-fung Leung

In this paper, we propose a novel \emph{uncertainty-aware graph self-training} approach for semi-supervised node classification. Our method introduces an Expectation-Maximization (EM) regularization scheme to incorporate an uncertainty…

机器学习 · 计算机科学 2025-07-31 Emily Wang , Michael Chen , Chao Li

Blind deconvolution over graphs involves using (observed) output graph signals to obtain both the inputs (sources) as well as the filter that drives (models) the graph diffusion process. This is an ill-posed problem that requires additional…

信号处理 · 电气工程与系统科学 2023-09-19 Victor M. Tenorio , Samuel Rey , Antonio G. Marques

Automatic knowledge graph construction aims to manufacture structured human knowledge. To this end, much effort has historically been spent extracting informative fact patterns from different data sources. However, more recently, research…

信息检索 · 计算机科学 2023-02-13 Lingfeng Zhong , Jia Wu , Qian Li , Hao Peng , Xindong Wu

Traditional approaches to semantic communication tasks rely on the knowledge of the signal-to-noise ratio (SNR) to mitigate channel noise. Moreover, these methods necessitate training under specific SNR conditions, entailing considerable…

机器学习 · 计算机科学 2024-09-24 Chunhang Zheng , Kechao Cai

Textual entailment is a fundamental task in natural language processing. Most approaches for solving the problem use only the textual content present in training data. A few approaches have shown that information from external knowledge…

A main challenge in mining network-based data is finding effective ways to represent or encode graph structures so that it can be efficiently exploited by machine learning algorithms. Several methods have focused in network representation…

社会与信息网络 · 计算机科学 2019-03-18 Leonardo Gutiérrez-Gómez , Jean-Charles Delvenne

The graph-based model can help to detect suspicious fraud online. Owing to the development of Graph Neural Networks~(GNNs), prior research work has proposed many GNN-based fraud detection frameworks based on either homogeneous graphs or…

社会与信息网络 · 计算机科学 2020-07-03 Zhiwei Liu , Yingtong Dou , Philip S. Yu , Yutong Deng , Hao Peng