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Deep clustering as an important branch of unsupervised representation learning focuses on embedding semantically similar samples into the identical feature space. This core demand inspires the exploration of contrastive learning and…

计算机视觉与模式识别 · 计算机科学 2024-04-16 Haifeng Xia , Hai Huang , Zhengming Ding

Unsupervised (or self-supervised) graph representation learning is essential to facilitate various graph data mining tasks when external supervision is unavailable. The challenge is to encode the information about the graph structure and…

机器学习 · 计算机科学 2020-09-16 Costas Mavromatis , George Karypis

Attribution methods are primarily designed to study input component contributions to individual model predictions. However, some research applications require a summary of attribution patterns across the entire dataset to facilitate the…

机器学习 · 计算机科学 2025-07-15 Pierre Lelièvre , Chien-Chung Chen

We study approximation methods for a large class of mixed models with a probit link function that includes mixed versions of the binomial model, the multinomial model, and generalized survival models. The class of models is special because…

统计计算 · 统计学 2021-10-28 Benjamin Christoffersen , Mark Clements , Hedvig Kjellström , Keith Humphreys

Graphical models have been widely applied in solving distributed inference problems in sensor networks. In this paper, the problem of coordinating a network of sensors to train a unique ensemble estimator under communication constraints is…

分布式、并行与集群计算 · 计算机科学 2016-11-17 Haipeng Zheng , Sanjeev R. Kulkarni , H. Vincent Poor

Graph contrastive learning (GCL) has recently achieved substantial advancements. Existing GCL approaches compare two different ``views'' of the same graph in order to learn node/graph representations. The underlying assumption of these…

机器学习 · 计算机科学 2024-01-18 Gehang Zhang , Bowen Yu , Jiangxia Cao , Xinghua Zhang , Jiawei Sheng , Chuan Zhou , Tingwen Liu

We present a method for modelling the cluster-galaxy correlation function in redshift-space, down to ~ Mpc scales. The method builds upon the so-called Galaxy Infall Kinematics (GIK) model, a parametric model for the pairwise velocities of…

宇宙学与河外天体物理 · 物理学 2024-06-04 Andrew Robertson , Eric Huff , Katarina Markovic , Baojiu Li

Multi-label image classification presents a challenging task in many domains, including computer vision and medical imaging. Recent advancements have introduced graph-based and transformer-based methods to improve performance and capture…

计算机视觉与模式识别 · 计算机科学 2024-04-15 Ahmad Sajedi , Samir Khaki , Yuri A. Lawryshyn , Konstantinos N. Plataniotis

We introduce intra-class memorability, where certain images within the same class are more memorable than others despite shared category characteristics. To investigate what features make one object instance more memorable than others, we…

计算机视觉与模式识别 · 计算机科学 2025-09-29 Jie Jing , Yongjian Huang , Serena J. -W. Wang , Shuangpeng Han , Lucia Schiatti , Yen-Ling Kuo , Qing Lin , Mengmi Zhang

Multi-sourced datasets are common in studies of variable interactions, for example, individual-level fMRI integration, cross-domain recommendation, etc, where each source induces a related but distinct dependency structure. Joint learning…

统计方法学 · 统计学 2025-12-08 Shixiang Liu , Yanhang Zhang , Zhifan Li , Jianxin Yin

Graph representation learning has emerged as a powerful technique for addressing real-world problems. Various downstream graph learning tasks have benefited from its recent developments, such as node classification, similarity search, and…

机器学习 · 计算机科学 2020-07-03 Jiezhong Qiu , Qibin Chen , Yuxiao Dong , Jing Zhang , Hongxia Yang , Ming Ding , Kuansan Wang , Jie Tang

Inverse classification is the process of perturbing an instance in a meaningful way such that it is more likely to conform to a specific class. Historical methods that address such a problem are often framed to leverage only a single…

机器学习 · 计算机科学 2017-06-13 Michael T. Lash , Qihang Lin , W. Nick Street , Jennifer G. Robinson , Jeffrey Ohlmann

Graph similarity is critical in graph-related tasks such as graph retrieval, where metrics like maximum common subgraph (MCS) and graph edit distance (GED) are commonly used. However, exact computations of these metrics are known to be…

机器学习 · 计算机科学 2025-10-02 Zhouyang Liu , Yixin Chen , Ning Liu , Jiezhong He , Dongsheng Li

Generative model evaluation commonly relies on high-dimensional embedding spaces to compute distances between samples. We show that dataset representations in these spaces are affected by the hubness phenomenon, which distorts…

机器学习 · 计算机科学 2026-05-29 Nicolas Salvy , Hugues Talbot , Bertrand Thirion

Graph representation learning has emerged as a powerful tool for preserving graph topology when mapping nodes to vector representations, enabling various downstream tasks such as node classification and community detection. However, most…

机器学习 · 计算机科学 2025-03-21 Kaizhe Fan , Quanjun Li

The image captioning task is about to generate suitable descriptions from images. For this task there can be several challenges such as accuracy, fluency and diversity. However there are few metrics that can cover all these properties while…

计算机视觉与模式识别 · 计算机科学 2020-12-15 Chao Zeng , Sam Kwong

In this paper, we propose a novel variable selection approach in the framework of high-dimensional linear models where the columns of the design matrix are highly correlated. It consists in rewriting the initial high-dimensional linear…

统计理论 · 数学 2021-06-11 Wencan Zhu , Eric Adjakossa , Céline Lévy-Leduc , Nils Ternès

Image/video data is usually represented with multiple visual features. Fusion of multi-source information for establishing the attributes has been widely recognized. Multi-feature visual recognition has recently received much attention in…

计算机视觉与模式识别 · 计算机科学 2016-11-15 Lei Zhang , David Zhang

In recent years, numerous graph generative models (GGMs) have been proposed. However, evaluating these models remains a considerable challenge, primarily due to the difficulty in extracting meaningful graph features that accurately…

机器学习 · 计算机科学 2025-03-18 Chengen Wang , Murat Kantarcioglu

Although recent generative image compression methods have demonstrated impressive potential in optimizing the rate-distortion-perception trade-off, they still face the critical challenge of flexible rate adaption to diverse compression…

图像与视频处理 · 电气工程与系统科学 2025-07-22 Anqi Li , Feng Li , Yuxi Liu , Runmin Cong , Yao Zhao , Huihui Bai