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Exploiting internal spatial geometric constraints of sparse LiDARs is beneficial to depth completion, however, has been not explored well. This paper proposes an efficient method to learn geometry-aware embedding, which encodes the local…

计算机视觉与模式识别 · 计算机科学 2022-06-02 Wenchao Du , Hu Chen , Hongyu Yang , Yi Zhang

Reconstructing objects and extracting high-quality surfaces play a vital role in the real world. Current 4D representations show the ability to render high-quality novel views for dynamic objects, but cannot reconstruct high-quality meshes…

计算机视觉与模式识别 · 计算机科学 2025-08-06 Shuai Zhang , Guanjun Wu , Zhoufeng Xie , Xinggang Wang , Bin Feng , Wenyu Liu

Wideband channel estimation (CE) in high-mobility scenarios remains challenging because channel responses vary rapidly, while practical systems can allocate only sparse pilots to accommodate dense users. Fortunately, many high-mobility…

信息论 · 计算机科学 2026-05-18 Yumeng Zhang , Jiajia Guo , Chaozheng Wen , Chenghong Bian , Jun Zhang

Generalized Canonical Correlation Analysis (GCCA) is an important tool that finds numerous applications in data mining, machine learning, and artificial intelligence. It aims at finding `common' random variables that are strongly correlated…

机器学习 · 计算机科学 2021-05-19 Mikael Sørensen , Charilaos I. Kanatsoulis , Nicholas D. Sidiropoulos

In this paper, we study the Carrollian and Galilean conformal field theories (CCFT and GCFT) in $d>2$ dimensions. We construct the highest weight representations (HWR) of Carrollian and Galilean conformal algebra (CCA and GCA). Even though…

高能物理 - 理论 · 物理学 2023-04-26 Bin Chen , Reiko Liu , Yu-fan Zheng

Gaussian processes (GPs) are the main surrogate functions used for sequential modelling such as Bayesian Optimization and Active Learning. Their drawbacks are poor scaling with data and the need to run an optimization loop when using a…

机器学习 · 计算机科学 2022-11-03 Paul E. Chang , Prakhar Verma , ST John , Victor Picheny , Henry Moss , Arno Solin

Graph convolutional neural networks (GCN) have been the model of choice for graph representation learning, which is mainly due to the effective design of graph convolution that computes the representation of a node by aggregating those of…

机器学习 · 计算机科学 2021-06-10 Qimai Li , Xiaotong Zhang , Han Liu , Quanyu Dai , Xiao-Ming Wu

We consider the problem of recovering two-dimensional (2-D) block-sparse signals with \emph{unknown} cluster patterns. Two-dimensional block-sparse patterns arise naturally in many practical applications such as foreground detection and…

信息论 · 计算机科学 2016-05-25 Jun Fang , Lizao Zhang , Hongbin Li

A D2CS of a graph G is a set $S \subseteq V(G)$ with $diam(G[S]) \leq 2$. We study the problem of counting and enumerating D2CS of a graph. First we give an explicit formula for the number of D2CS in a complete k-ary tree, Fibonacci tree,…

离散数学 · 计算机科学 2010-11-23 P. Venkata Subba Reddy , K. Viswanathan Iyer

Diffuse two-dimensional integer-valued arrays are demonstrated that have delta-like aperiodic autocorrelation and, simultaneously, the array sums form delta-like projections along several directions. The delta-projected views show a single…

图像与视频处理 · 电气工程与系统科学 2021-11-15 I. D. Svalbe , D. M. Paganin , T. C. Petersen

Deep Gaussian processes (DGPs) provide a Bayesian non-parametric alternative to standard parametric deep learning models. A DGP is formed by stacking multiple GPs resulting in a well-regularized composition of functions. The Bayesian…

机器学习 · 统计学 2018-06-06 Vinayak Kumar , Vaibhav Singh , P. K. Srijith , Andreas Damianou

LiDAR-based 3D detectors need large datasets for training, yet they struggle to generalize to novel domains. Domain Generalization (DG) aims to mitigate this by training detectors that are invariant to such domain shifts. Current DG…

计算机视觉与模式识别 · 计算机科学 2025-03-12 Dušan Malić , Christian Fruhwirth-Reisinger , Samuel Schulter , Horst Possegger

A real quadratic matrix is generalized doubly stochastic (g.d.s.) if all of its row sums and column sums equal one. We propose numerically stable methods for generating such matrices having possibly orthogonality property or/and satisfying…

数值分析 · 计算机科学 2018-09-21 Gianluca Oderda , Alicja Smoktunowicz , Ryszard Kozera

We study a two dimensional (2D) system of interacting quantum bosons, subjected to a continuous periodic potential in one direction. The correlation of such system exhibits a dimensional crossover between a canonical 2D behavior with…

量子气体 · 物理学 2023-07-26 Hepeng Yao , Lorenzo Pizzino , Thierry Giamarchi

We introduce an extended framework for the simultaneous gauging of modulated symmetries in $(d+1)$ dimensions, employing {\it multiple} gauge symmetry operators whose corresponding gauging procedures must be carried out simultaneously.…

强关联电子 · 物理学 2026-02-04 Jintae Kim , Jong Yeon Lee , Jung Hoon Han

This article presents two novel adaptive-sparse polynomial dimensional decomposition (PDD) methods for solving high-dimensional uncertainty quantification problems in computational science and engineering. The methods entail global…

数值分析 · 数学 2015-06-18 Vaibhav Yadav , Sharif Rahman

First we recall a method of computing scalar products of eigenfunctions of a Sturm-Liouville operator. This method is then applied to Macdonald and Gegenbauer functions, which are eigenfunctions of the Bessel, resp. Gegenbauer operators.…

数学物理 · 物理学 2024-05-17 Jan Dereziński , Christian Gaß , Błażej Ruba

Synthetic images rendered from 3D CAD models are useful for augmenting training data for object recognition algorithms. However, the generated images are non-photorealistic and do not match real image statistics. This leads to a large…

计算机视觉与模式识别 · 计算机科学 2017-03-21 Xingchao Peng , Kate Saenko

We discuss generalized partition function of 2d CFTs decorated by higher qKdV charges on thermal cylinder. We propose that in the large central charge limit qKdV charges factorize such that generalized partition function can be rewritten in…

高能物理 - 理论 · 物理学 2020-04-13 Anatoly Dymarsky , Kirill Pavlenko

Generalized additive models (GAMs) provide a way to blend parametric and non-parametric (function approximation) techniques together, making them flexible tools suitable for many modeling problems. For instance, GAMs can be used to…

统计方法学 · 统计学 2023-03-07 Antti Solonen , Stratos Staboulis