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Reconfigurable intelligent surfaces (RISs) have emerged as a promising technology for enhancing wireless communications through dense antenna arrays. Accurate channel estimation is critical to unlocking their full performance potential. To…

信息论 · 计算机科学 2025-10-21 Zijian Zhang , Mingyao Cui

In the online metric matching problem, $n$ servers and $n$ requests lie in a metric space. Servers are available upfront, and requests arrive sequentially. An arriving request must be matched immediately and irrevocably to an available…

数据结构与算法 · 计算机科学 2026-04-22 Yingxi Li , Ellen Vitercik , Mingwei Yang

In this manuscript, we combine non-intrusive reduced order models (ROMs) with space-dependent aggregation techniques to build a mixed-ROM. The prediction of the mixed formulation is given by a convex linear combination of the predictions of…

数值分析 · 数学 2024-03-12 Anna Ivagnes , Niccolò Tonicello , Paola Cinnella , Gianluigi Rozza

In aircraft design, structural optimization and uncertainty quantification concerning transonic aeroelastic issues are computationally impractical, because the iterative process requires great number of aeroelastic analysis. Emerging…

流体动力学 · 物理学 2018-08-15 Ziyi Wang , Weiwei Zhang , Xiaojing Wu , Kongjin Chen

Intelligent reflecting surface (IRS) as a promising technology rendering high throughput in future communication systems is compatible with various communication techniques such as non-orthogonal multiple-access (NOMA). In this paper, the…

信息论 · 计算机科学 2022-03-17 Yasaman Omid , S. M. Mahdi Shahabi , Cunhua Pan , Yansha Deng , Arumugam Nallanathan

Rendezvous aims at gathering all robots at a specific location, which is an important collaborative behavior for multi-robot systems. However, in an unknown environment, it is challenging to achieve rendezvous. Previous researches mainly…

机器人学 · 计算机科学 2024-12-04 Kun Song , Gaoming Chen , Wenhang Liu , Zhenhua Xiong

This paper develops a robust angles-only IROD method based on polynomial optimization for arbitrary nonlinear dynamics. First, the relative motion is approximated by high-order Taylor polynomials within the differential algebra framework,…

天体物理仪器与方法 · 物理学 2026-04-28 Xingyu Zhou , Malcolm Macdonald , Roberto Armellin , Dong Qiao , Xiangyu Li

Matching mechanisms play a central role in operations management across diverse fields including education, healthcare, and online platforms. However, experimentally comparing a new matching algorithm against a status quo presents some…

统计方法学 · 统计学 2026-01-30 Chonghuan Wang

Compressive sensing claims that the sparse signals can be reconstructed exactly from many fewer measurements than traditionally believed necessary. One of issues ensuring the successful compressive sensing is to deal with the…

信息论 · 计算机科学 2009-03-31 Lianlin Li , Fang Li

We present an efficient method for computing A-optimal experimental designs for infinite-dimensional Bayesian linear inverse problems governed by partial differential equations (PDEs). Specifically, we address the problem of optimizing the…

统计计算 · 统计学 2014-05-29 Alen Alexanderian , Noemi Petra , Georg Stadler , Omar Ghattas

Motivated by programmatic advertising optimization, we consider the task of sequentially allocating budget across a set of resources. At every time step, a feasible allocation is chosen and only a corresponding random return is observed.…

人工智能 · 计算机科学 2024-10-02 Juliette Achddou , Olivier Cappe , Aurélien Garivier

This study addresses the challenge of estimating average treatment effects (ATEs) for advertising campaigns in online marketplaces where complete randomized experimentation is infeasible. We propose two key innovations: (1) a shrinkage…

统计方法学 · 统计学 2026-04-01 Yen-Chun Liu , Alexander Volfovsky , German Schnaidt , Cristobal Garib , Eric Laber

A novel algorithm for the recovery of low-rank matrices acquired via compressive linear measurements is proposed and analyzed. The algorithm, a variation on the iterative hard thresholding algorithm for low-rank recovery, is designed to…

数值分析 · 数学 2018-10-30 Simon Foucart , Srinivas Subramanian

A common challenge in nonparametric inference is its high computational complexity when data volume is large. In this paper, we develop computationally efficient nonparametric testing by employing a random projection strategy. In the…

统计理论 · 数学 2018-02-20 Meimei Liu , Zuofeng Shang , Guang Cheng

This paper presents a sampling-based method for optimal motion planning in non-holonomic systems in the absence of known cost functions. It uses the principle of learning through experience to deduce the cost-to-go of regions within the…

机器人学 · 计算机科学 2021-01-08 Nahas Pareekutty , Francis James , Balaraman Ravindran , Suril V. Shah

Many sensor networks, including large particle detector arrays measuring high-energy cosmic-ray air showers, traditionally rely on centralised trigger algorithms to find spatial and temporal coincidences of individual nodes. Such schemes…

仪器与探测器 · 物理学 2015-06-11 Suhail Yousaf , Rena Bakhshi , Maarten van Steen , Spyros Voulgaris , John L. Kelley

We investigate high-dimensional sparse regression when both the noise and the design matrix exhibit heavy-tailed behavior. Standard algorithms typically fail in this regime, as heavy-tailed covariates distort the empirical risk geometry. We…

统计方法学 · 统计学 2026-01-12 Kaiyuan Zhou , Xiaoyu Zhang , Wenyang Zhang , Di Wang

In this paper, we study the problem of map matching with travel time constraints. Given a sequence of $k$ spatio-temporal measurements and an embedded path graph with travel time costs, the goal is to snap each measurement to a close-by…

计算几何 · 计算机科学 2025-06-24 Yannick Bosch , Sabine Storandt

We put forward a simple new randomized missing data (RMD) approach to robust filtering of state-space models, motivated by the idea that the inclusion of only a small fraction of available highly precise measurements can still extract most…

统计方法学 · 统计学 2022-10-21 Dobrislav Dobrev , Derek Hansen , Pawel Szerszen

This paper proposes a metric for sets of trajectories to evaluate multi-object tracking algorithms that includes time-weighted costs for localisation errors of properly detected targets, for false targets, missed targets and track switches.…

计算机视觉与模式识别 · 计算机科学 2021-10-27 Ángel F. García-Fernández , Abu Sajana Rahmathullah , Lennart Svensson