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Identifying unique characteristics in a network through comparison with another network is an essential network analysis task. For example, with networks of protein interactions obtained from normal and cancer tissues, we can discover…

Machine Learning · Computer Science 2022-02-16 Takanori Fujiwara , Jian Zhao , Francine Chen , Yaoliang Yu , Kwan-Liu Ma

Network representation learning (NRL) aims to learn low-dimensional vectors for vertices in a network. Most existing NRL methods focus on learning representations from local context of vertices (such as their neighbors). Nevertheless,…

Social and Information Networks · Computer Science 2018-07-05 Cunchao Tu , Xiangkai Zeng , Hao Wang , Zhengyan Zhang , Zhiyuan Liu , Maosong Sun , Bo Zhang , Leyu Lin

Anomaly detection on attributed networks attracts considerable research interests due to wide applications of attributed networks in modeling a wide range of complex systems. Recently, the deep learning-based anomaly detection methods have…

Machine Learning · Computer Science 2021-05-07 Yixin Liu , Zhao Li , Shirui Pan , Chen Gong , Chuan Zhou , George Karypis

The rapid development of Convolutional Neural Networks (CNNs) in recent years has triggered significant breakthroughs in many machine learning (ML) applications. The ability to understand and compare various CNN models available is thus…

Machine Learning · Computer Science 2022-01-19 Xiwei Xuan , Xiaoyu Zhang , Oh-Hyun Kwon , Kwan-Liu Ma

High dimensional data analysis for exploration and discovery includes three fundamental tasks: dimensionality reduction, clustering, and visualization. When the three associated tasks are done separately, as is often the case thus far,…

Machine Learning · Computer Science 2020-12-02 Stan Z. Li , Lirong Wu , Zelin Zang

Learnable keypoint detectors and descriptors are beginning to outperform classical hand-crafted feature extraction methods. Recent studies on self-supervised learning of visual representations have driven the increasing performance of…

Computer Vision and Pattern Recognition · Computer Science 2022-07-12 Henrique Siqueira , Patrick Ruhkamp , Ibrahim Halfaoui , Markus Karmann , Onay Urfalioglu

Adversarial attacks on a convolutional neural network (CNN) -- injecting human-imperceptible perturbations into an input image -- could fool a high-performance CNN into making incorrect predictions. The success of adversarial attacks raises…

Computer Vision and Pattern Recognition · Computer Science 2023-03-27 Yiran Li , Junpeng Wang , Takanori Fujiwara , Kwan-Liu Ma

Deep neural networks, albeit their great success on feature learning in various computer vision tasks, are usually considered as impractical for online visual tracking because they require very long training time and a large number of…

Computer Vision and Pattern Recognition · Computer Science 2016-05-04 Hanxi Li , Yi Li , Fatih Porikli

Classifying large scale networks into several categories and distinguishing them according to their fine structures is of great importance with several applications in real life. However, most studies of complex networks focus on properties…

Computer Vision and Pattern Recognition · Computer Science 2022-09-07 Ruyue Xin , Jiang Zhang , Yitong Shao

Protein-ligand scoring is an important step in a structure-based drug design pipeline. Selecting a correct binding pose and predicting the binding affinity of a protein-ligand complex enables effective virtual screening. Machine learning…

Machine Learning · Statistics 2020-10-19 Joshua Hochuli , Alec Helbling , Tamar Skaist , Matthew Ragoza , David Ryan Koes

Contrastive learning has revolutionized the field of computer vision, learning rich representations from unlabeled data, which generalize well to diverse vision tasks. Consequently, it has become increasingly important to explain these…

Computer Vision and Pattern Recognition · Computer Science 2023-12-15 Fawaz Sammani , Boris Joukovsky , Nikos Deligiannis

This paper presents SimCLR: a simple framework for contrastive learning of visual representations. We simplify recently proposed contrastive self-supervised learning algorithms without requiring specialized architectures or a memory bank.…

Machine Learning · Computer Science 2020-07-02 Ting Chen , Simon Kornblith , Mohammad Norouzi , Geoffrey Hinton

Multivariate networks are commonly found in real-world data-driven applications. Uncovering and understanding the relations of interest in multivariate networks is not a trivial task. This paper presents a visual analytics workflow for…

Social and Information Networks · Computer Science 2024-07-04 Hsiao-Ying Lu , Takanori Fujiwara , Ming-Yi Chang , Yang-chih Fu , Anders Ynnerman , Kwan-Liu Ma

Network embedding is a highly effective method to learn low-dimensional node vector representations with original network structures being well preserved. However, existing network embedding algorithms are mostly developed for a single…

Social and Information Networks · Computer Science 2021-05-06 Xiao Shen , Quanyu Dai , Sitong Mao , Fu-lai Chung , Kup-Sze Choi

Residual learning has recently surfaced as an effective means of constructing very deep neural networks for object recognition. However, current incarnations of residual networks do not allow for the modeling and integration of complex…

Computer Vision and Pattern Recognition · Computer Science 2016-07-21 Brendan Jou , Shih-Fu Chang

Detecting abnormal nodes from attributed networks is of great importance in many real applications, such as financial fraud detection and cyber security. This task is challenging due to both the complex interactions between the anomalous…

Machine Learning · Computer Science 2023-10-02 Jiaqiang Zhang , Senzhang Wang , Songcan Chen

Recently, the Network Representation Learning (NRL) techniques, which represent graph structure via low-dimension vectors to support social-oriented application, have attracted wide attention. Though large efforts have been made, they may…

Social and Information Networks · Computer Science 2019-05-28 Hao Wang , Tong Xu , Qi Liu , Defu Lian , Enhong Chen , Dongfang Du , Han Wu , Wen Su

Multiview network embedding aims at projecting nodes in the network to low-dimensional vectors, while preserving their multiple relations and attribute information. Contrastive learning approaches have shown promising performance in this…

Machine Learning · Computer Science 2022-08-18 Mengqi Zhang , Yanqiao Zhu , Qiang Liu , Shu Wu , Liang Wang

Unsupervised cell type identification is crucial for uncovering and characterizing heterogeneous populations in single cell omics studies. Although a range of clustering methods have been developed, most focus exclusively on intrinsic…

Artificial Intelligence · Computer Science 2025-12-12 Liang Peng , Haopeng Liu , Yixuan Ye , Cheng Liu , Wenjun Shen , Si Wu , Hau-San Wong

Graph anomaly detection is a popular and vital task in various real-world scenarios, which has been studied for several decades. Recently, many studies extending deep learning-based methods have shown preferable performance on graph anomaly…

Machine Learning · Computer Science 2025-05-13 Jing Ren , Mingliang Hou , Zhixuan Liu , Xiaomei Bai
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