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We consider stochastic optimization under distributional uncertainty, where the unknown distributional parameter is estimated from streaming data that arrive sequentially over time. Moreover, data may depend on the decision of the time when…

最优化与控制 · 数学 2023-10-17 Tianyi Liu , Yifan Lin , Enlu Zhou

Gaze estimation encounters generalization challenges when dealing with out-of-distribution data. To address this problem, recent methods use neural radiance fields (NeRF) to generate augmented data. However, existing methods based on NeRF…

计算机视觉与模式识别 · 计算机科学 2025-07-10 Xiaobao Wei , Peng Chen , Guangyu Li , Ming Lu , Hui Chen , Feng Tian

Simultaneously localizing camera poses and constructing Gaussian radiance fields in dynamic scenes establish a crucial bridge between 2D images and the 4D real world. Instead of removing dynamic objects as distractors and reconstructing…

计算机视觉与模式识别 · 计算机科学 2025-03-24 Yanyan Li , Youxu Fang , Zunjie Zhu , Kunyi Li , Yong Ding , Federico Tombari

Visual localization is the task of estimating a camera pose in a known environment. In this paper, we utilize 3D Gaussian Splatting (3DGS)-based representations for accurate and privacy-preserving visual localization. We propose Gaussian…

计算机视觉与模式识别 · 计算机科学 2025-08-27 Maxime Pietrantoni , Gabriela Csurka , Torsten Sattler

Traffic forecasting is the foundation for intelligent transportation systems. Spatiotemporal graph neural networks have demonstrated state-of-the-art performance in traffic forecasting. However, these methods do not explicitly model some of…

机器学习 · 计算机科学 2024-03-05 Qipeng Qian , Tanwi Mallick

Gaussian Conditional Random Fields (GCRF), as a structured regression model, is designed to achieve higher regression accuracy than unstructured predictors at the expense of execution time, taking into account the objects similarities and…

机器学习 · 计算机科学 2019-09-04 Milan Bašić , Branko Arsić , Zoran Obradović

Generalizable 3D Gaussian Splatting reconstruction showcases advanced Image-to-3D content creation but requires substantial computational resources and large datasets, posing challenges to training models from scratch. Current methods…

计算机视觉与模式识别 · 计算机科学 2026-01-05 Xiufeng Huang , Ka Chun Cheung , Runmin Cong , Simon See , Renjie Wan

Learning dynamical models from data is not only fundamental but also holds great promise for advancing principle discovery, time-series prediction, and controller design. Among various approaches, Gaussian Process State-Space Models…

机器学习 · 计算机科学 2025-10-20 Tengjie Zheng , Haipeng Chen , Lin Cheng , Shengping Gong , Xu Huang

Gaussian Splatting (GS) offers a promising alternative to Neural Radiance Fields (NeRF) for real-time 3D scene rendering. Using a set of 3D Gaussians to represent complex geometry and appearance, GS achieves faster rendering times and…

多媒体 · 计算机科学 2025-06-18 Pedro Martin , António Rodrigues , João Ascenso , Maria Paula Queluz

Accurate multivariate time series forecasting hinges on inter-series correlations, which often evolve in complex ways across different temporal scales. Existing methods are limited in modeling these multi-scale dependencies and struggle to…

机器学习 · 计算机科学 2026-01-27 Shaoxun Wang , Xingjun Zhang , Qianyang Li , Jiawei Cao , Zhendong Tan

As an important part of intelligent transportation systems, traffic forecasting has attracted tremendous attention from academia and industry. Despite a lot of methods being proposed for traffic forecasting, it is still difficult to model…

机器学习 · 计算机科学 2022-10-07 Le Zhao , Mingcai Chen , Yuntao Du , Haiyang Yang , Chongjun Wang

Spatio-temporal modeling is foundational for smart city applications, yet it is often hindered by data scarcity in many cities and regions. To bridge this gap, we propose a novel generative pre-training framework, GPD, for spatio-temporal…

机器学习 · 计算机科学 2024-03-26 Yuan Yuan , Chenyang Shao , Jingtao Ding , Depeng Jin , Yong Li

Although deep learning-based methods have shown great success in spatiotemporal predictive learning, the framework of those models is designed mainly by intuition. How to make spatiotemporal forecasting with theoretical guarantees is still…

机器学习 · 计算机科学 2024-02-26 Tongyi Liang , Han-Xiong Li

Tensor time series (TTS) data, a generalization of one-dimensional time series on a high-dimensional space, is ubiquitous in real-world scenarios, especially in monitoring systems involving multi-source spatio-temporal data (e.g.,…

机器学习 · 计算机科学 2023-06-08 Jiewen Deng , Jinliang Deng , Renhe Jiang , Xuan Song

Generative Bayesian Filtering (GBF) provides a powerful and flexible framework for performing posterior inference in complex nonlinear and non-Gaussian state-space models. Our approach extends Generative Bayesian Computation (GBC) to…

统计方法学 · 统计学 2025-11-07 Edoardo Marcelli , Sean O'Hagan , Veronika Rockova

Deep reinforcement learning (DRL) methods have demonstrated potential for autonomous navigation and obstacle avoidance of unmanned ground vehicles (UGVs) in crowded environments. Most existing approaches rely on single-frame observation and…

机器人学 · 计算机科学 2026-01-01 Ruitong Li , Lin Zhang , Yuenan Zhao , Chengxin Liu , Ran Song , Wei Zhang

Inferring the evolution of high-dimensional and multi-modal (e.g., spatio-temporal) physical fields from irregular sparse measurements in real time is a fundamental challenge in science and engineering. Existing approaches, including…

机器学习 · 计算机科学 2026-05-12 Panqi Chen , Yifan Sun , Shikai Fang , Xiao Fu , Lei Cheng

Instance Image-Goal Navigation (IIN) requires autonomous agents to identify and navigate to a target object or location depicted in a reference image captured from any viewpoint. While recent methods leverage powerful novel view synthesis…

计算机视觉与模式识别 · 计算机科学 2025-06-10 Yijie Deng , Shuaihang Yuan , Geeta Chandra Raju Bethala , Anthony Tzes , Yu-Shen Liu , Yi Fang

Accurate prediction of complex and nonlinear time series remains a challenging problem across engineering and scientific disciplines. Reservoir computing (RC) offers a computationally efficient alternative to traditional deep learning by…

机器学习 · 计算机科学 2025-08-20 Charlotte Geier , Rasha Shanaz , Merten Stender

Generalizable Gaussian Splatting aims to synthesize novel views for unseen scenes without per-scene optimization. In particular, recent advancements utilize feed-forward networks to predict per-pixel Gaussian parameters, enabling…

计算机视觉与模式识别 · 计算机科学 2025-08-29 Yuxi Hu , Jun Zhang , Kuangyi Chen , Zhe Zhang , Friedrich Fraundorfer