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Personalized PageRank (PPR) has enormous applications, such as link prediction and recommendation systems for social networks, which often require the fully PPR to be known. Besides, most of real-life graphs are edge-weighted, e.g., the…

社会与信息网络 · 计算机科学 2019-03-29 Wenqing Lin

How can we accurately classify graphs? Graph classification is a pivotal task in data mining with applications in social network analysis, web analysis, drug discovery, molecular property prediction, etc. Graph neural networks have achieved…

机器学习 · 计算机科学 2025-03-28 Minjun Kim , Jaehyeon Choi , SeungJoo Lee , Jinhong Jung , U Kang

The Laplacian representation recently gains increasing attention for reinforcement learning as it provides succinct and informative representation for states, by taking the eigenvectors of the Laplacian matrix of the state-transition graph…

机器学习 · 计算机科学 2021-07-13 Kaixin Wang , Kuangqi Zhou , Qixin Zhang , Jie Shao , Bryan Hooi , Jiashi Feng

Effective evaluation of real-time strategy tasks requires adaptive mechanisms to cope with dynamic and unpredictable environments. This study proposes a method to improve evaluation functions for real-time responsiveness to battle-field…

人工智能 · 计算机科学 2025-01-08 Weilong Yang , Jie Zhang , Xunyun Liu , Yanqing Ye

Methods for medical image registration infer geometric transformations that align pairs/groups of images by maximising an image similarity metric. This problem is ill-posed as several solutions may have equivalent likelihoods, also…

计算机视觉与模式识别 · 计算机科学 2024-03-19 Aisha L. Shuaibu , Ivor J. A. Simpson

Automatic segmentation of organs-at-risk (OARs) in CT scans using convolutional neural networks (CNNs) is being introduced into the radiotherapy workflow. However, these segmentations still require manual editing and approval by clinicians…

计算机视觉与模式识别 · 计算机科学 2022-06-28 Edward G. A. Henderson , Andrew F. Green , Marcel van Herk , Eliana M. Vasquez Osorio

Cancelable Biometric is a challenging research field in which security of an original biometric image is ensured by transforming the original biometric into another irreversible domain. Several approaches have been suggested in literature…

计算机视觉与模式识别 · 计算机科学 2024-04-26 Nitin Kumar , Manisha

Data preparation, i.e. the process of transforming raw data into a format that can be used for training effective machine learning models, is a tedious and time-consuming task. For image data, preprocessing typically involves a sequence of…

计算机视觉与模式识别 · 计算机科学 2021-04-30 Tran Ngoc Minh , Mathieu Sinn , Hoang Thanh Lam , Martin Wistuba

Researchers have designed many algorithms to measure the distances between graph nodes, such as average hitting times of random walks, cosine distances from DeepWalk, personalized PageRank, etc. Successful although these algorithms are,…

离散数学 · 计算机科学 2020-12-02 Enzhi Li , Zhengyi Le

The method of random projection (RP) is the standard technique in machine learning and many other areas, for dimensionality reduction, approximate near neighbor search, compressed sensing, etc. Basically, RP provides a simple and effective…

机器学习 · 统计学 2021-02-26 Xiaoyun Li , Ping Li

Physics-inspired regularization is desired for intra-patient image registration since it can effectively capture the biomechanical characteristics of anatomical structures. However, a major challenge lies in the reliance on physical…

计算机视觉与模式识别 · 计算机科学 2024-07-08 Anna Reithmeir , Lina Felsner , Rickmer Braren , Julia A. Schnabel , Veronika A. Zimmer

During the last decade, incremental sampling-based motion planning algorithms, such as the Rapidly-exploring Random Trees (RRTs) have been shown to work well in practice and to possess theoretical guarantees such as probabilistic…

机器人学 · 计算机科学 2010-05-05 Sertac Karaman , Emilio Frazzoli

Random walks are at the heart of many existing deep learning algorithms for graph data. However, such algorithms have many limitations that arise from the use of random walks, e.g., the features resulting from these methods are unable to…

We study the decentralized online regularized linear regression algorithm over random time-varying graphs. At each time step, every node runs an online estimation algorithm consisting of an innovation term processing its own new…

机器学习 · 计算机科学 2025-10-02 Xiwei Zhang , Tao Li , Xiaozheng Fu

The task of parsing subcutaneous vessels in clinical images is often hindered by the high cost and limited availability of ground truth data, as well as the challenge of low contrast and noisy vessel appearances across different patients…

计算机视觉与模式识别 · 计算机科学 2026-05-11 Ayaan Nooruddin Siddiqui , Mahnoor Zaidi , Ayesha Nazneen Shahbaz , Priyadarshini Chatterjee , Krishnan Menon Iyer

In this paper, we consider the problem of predicting unknown targets from data. We propose Online Residual Learning (ORL), a method that combines online adaptation with offline-trained predictions. At a lower level, we employ multiple…

系统与控制 · 电气工程与系统科学 2024-09-10 Anastasios Vlachos , Anastasios Tsiamis , Aren Karapetyan , Efe C. Balta , John Lygeros

Adaptive radiotherapy (ART), especially online ART, effectively accounts for positioning errors and anatomical changes. One key component of online ART is accurately and efficiently delineating organs at risk (OARs) and targets on online…

Subgraph counting is a fundamental task for analyzing structural patterns in graph-structured data, with important applications in domains such as computational biology and social network analysis, where recurring motifs reveal functional…

机器学习 · 计算机科学 2025-12-02 Shubhajit Roy , Shrutimoy Das , Binita Maity , Anant Kumar , Anirban Dasgupta

This paper presents a new trajectory replanner for grasping irregular objects. Unlike conventional grasping tasks where the object's geometry is assumed simple, we aim to achieve a "dynamic grasp" of the irregular objects, which requires…

机器人学 · 计算机科学 2025-01-31 Minh Nhat Vu , Florian Grander , Anh Nguyen

Monte Carlo random walk methods are widely used in capacitance extraction for their mesh free formulation and inherent parallelism. However, modern semiconductor technologies with densely packed structures present significant challenges in…

机器学习 · 计算机科学 2025-11-25 Hector R. Rodriguez , Jiechen Huang , Wenjian Yu