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Diffusion Posterior Sampling (DPS) provides a principled Bayesian approach to inverse problems by sampling from $p(x_0 \mid y)$. While posterior sampling is valuable for capturing uncertainty and multi-modality, many classical and practical…

图形学 · 计算机科学 2026-05-26 Shaorong Zhang , Rob Brekelmans , Greg Ver Steeg

Generative, temporal network models play an important role in analyzing the dependence structure and evolution patterns of complex networks. Due to the complicated nature of real network data, it is often naive to assume that the underlying…

统计方法学 · 统计学 2024-08-15 Daniel Cirkovic , Tiandong Wang , Xianyang Zhang

Distance metric learning (DML) approaches learn a transformation to a representation space where distance is in correspondence with a predefined notion of similarity. While such models offer a number of compelling benefits, it has been…

机器学习 · 统计学 2016-03-03 Oren Rippel , Manohar Paluri , Piotr Dollar , Lubomir Bourdev

Transition Matching (TM) is an emerging paradigm for generative modeling that generalizes diffusion and flow-matching models as well as continuous-state autoregressive models. TM, similar to previous paradigms, gradually transforms noise…

机器学习 · 计算机科学 2025-12-16 Uriel Singer , Yaron Lipman

Land surface temperature (LST) is a fundamental parameter in thermal infrared remote sensing, while current LST products are often constrained by the trade-off between spatial and temporal resolutions. To mitigate this limitation, numerous…

地球物理 · 物理学 2025-11-11 Huanyu Zhang , Bo-Hui Tang , Tian Hu , Yun Jiang , Zhao-Liang Li

This paper introduces an online approach for identifying time-varying subspaces defined by linear dynamical systems. The approach of representing linear systems by non-parametric subspace models has received significant interest in the…

系统与控制 · 电气工程与系统科学 2025-12-01 András Sasfi , Alberto Padoan , Ivan Markovsky , Florian Dörfler

Nonlinear manifold learning algorithms, such as diffusion maps, have been fruitfully applied in recent years to the analysis of large and complex data sets. However, such algorithms still encounter challenges when faced with real data. One…

数学物理 · 物理学 2015-05-25 Carmeline J. Dsilva , Ronen Talmon , Ronald R. Coifman , Ioannis G. Kevrekidis

Discrete diffusion models have emerged as powerful tools for high-quality data generation. Despite their success in discrete spaces, such as text generation tasks, the acceleration of discrete diffusion models remains under-explored. In…

机器学习 · 计算机科学 2024-12-09 Zixiang Chen , Huizhuo Yuan , Yongqian Li , Yiwen Kou , Junkai Zhang , Quanquan Gu

Pancreas segmentation in medical image processing is a persistent challenge due to its small size, low contrast against adjacent tissues, and significant topological variations. Traditional level set methods drive boundary evolution using…

计算机视觉与模式识别 · 计算机科学 2025-11-04 Yue Gou , Fanghui Song , Yuming Xing , Shengzhu Shi , Zhichang Guo , Boying Wu

Probabilistic Logic Programming (PLP) languages enable programmers to specify systems that combine logical models with statistical knowledge. The inference problem, to determine the probability of query answers in PLP, is intractable in…

人工智能 · 计算机科学 2014-03-25 Arun Nampally , C. R. Ramakrishnan

We introduce LDL, a fast and robust algorithm that localizes a panorama to a 3D map using line segments. LDL focuses on the sparse structural information of lines in the scene, which is robust to illumination changes and can potentially…

计算机视觉与模式识别 · 计算机科学 2023-08-29 Junho Kim , Changwoon Choi , Hojun Jang , Young Min Kim

We study offline change point localization and inference in dynamic multilayer random dot product graphs (D-MRDPGs), where at each time point, a multilayer network is observed with shared node latent positions and time-varying,…

统计方法学 · 统计学 2025-06-30 Fan Wang , Kyle Ritscher , Yik Lun Kei , Xin Ma , Oscar Hernan Madrid Padilla

While gradient-based discrete samplers are effective in sampling from complex distributions, they are susceptible to getting trapped in local minima, particularly in high-dimensional, multimodal discrete distributions, owing to the…

机器学习 · 统计学 2025-05-21 Luxu Liang , Yuhang Jia , Feng Zhou

In Multiple Object Tracking, objects often exhibit non-linear motion of acceleration and deceleration, with irregular direction changes. Tacking-by-detection (TBD) trackers with Kalman Filter motion prediction work well in…

计算机视觉与模式识别 · 计算机科学 2024-03-21 Weiyi Lv , Yuhang Huang , Ning Zhang , Ruei-Sung Lin , Mei Han , Dan Zeng

In recent years, manifold learning has become increasingly popular as a tool for performing non-linear dimensionality reduction. This has led to the development of numerous algorithms of varying degrees of complexity that aim to recover man…

机器学习 · 统计学 2013-06-03 Dominique Perraul-Joncas , Marina Meila

A large-scale deployment of phasor measurement units (PMUs) that reveal the inherent physical laws of power systems from a data perspective enables an enhanced awareness of power system operation. However, the high-granularity and…

信号处理 · 电气工程与系统科学 2022-07-26 Yuxuan Yuan , Yifei Guo , Kaveh Dehghanpour , Zhaoyu Wang , Yanchao Wang

The Large Margin Distribution Machine (LMDM) is a recent advancement in classifier design that optimizes not just the minimum margin (as in SVM) but the entire margin distribution, thereby improving generalization. However, existing LMDM…

机器学习 · 计算机科学 2025-09-19 Yang Xu , Junpeng Li , Changchun Hua , Yana Yang

Continuous-time long-term event prediction plays an important role in many application scenarios. Most existing works rely on autoregressive frameworks to predict event sequences, which suffer from error accumulation, thus compromising…

机器学习 · 计算机科学 2023-11-03 Wang-Tao Zhou , Zhao Kang , Ling Tian

Dynamic mode decomposition (DMD) is a widely used data-driven algorithm for predicting the future states of dynamical systems. However, its standard formulation often struggles with poor long-term predictive accuracy. To address this…

数值分析 · 数学 2025-10-23 Qiuqi Li , Chang Liu , Yifei Yang

We propose a novel diffusion map particle system (DMPS) for generative modeling, based on diffusion maps and Laplacian-adjusted Wasserstein gradient descent (LAWGD). Diffusion maps are used to approximate the generator of the corresponding…

机器学习 · 统计学 2024-12-19 Fengyi Li , Youssef Marzouk