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This is a survey of some recent results on the rational circulant covariance extension problem: Given a partial sequence $(c_0,c_1,\dots,c_n)$ of covariance lags $c_k=\mathbb{E}\{y(t+k)\overline{y(t)}\}$ emanating from a stationary periodic…

统计理论 · 数学 2015-12-18 Anders Lindquist , Giorgio Picci

Sampling-based methods for motion planning, which capture the structure of the robot's free space via (typically random) sampling, have gained popularity due to their scalability, simplicity, and for offering global guarantees, such as…

机器人学 · 计算机科学 2025-05-22 Itai Panasoff , Kiril Solovey

We study saturated packings produced according to random sequential adsorption (RSA) protocol built of identical rectangles deposited on a flat, continuous plane. An aspect ratio of rectangles is defined as the length-to-width ratio,…

材料科学 · 物理学 2023-12-01 Luca Petrone , Nikolai Lebovka , Michał Cieśla

We study the percolation and jamming of rods ($k$-mers) on a square lattice that contains defects. The point defects are placed randomly and uniformly on the substrate before deposition of the rods. The general case of unequal probabilities…

We propose a new ensemble prediction method, Random Subset Averaging (RSA), tailored for settings with many covariates, particularly in the presence of strong correlations. RSA constructs candidate models via binomial random subset strategy…

统计方法学 · 统计学 2025-12-30 Wenhao Cui , Jie Hu

In this paper, we review the key figures of merit to assess the performance of advanced random access (RA) schemes exploiting physical layer coding, repetitions and collision resolution techniques. We then investigate RA modeling aspects…

信息论 · 计算机科学 2018-01-22 Alberto Mengali , Riccardo De Gaudenzi , Cedomir Stefanovic

The Random Permutation Set (RPS) is a new type of set proposed recently, which can be regarded as the generalization of evidence theory. To measure the uncertainty of RPS, the entropy of RPS and its corresponding maximum entropy have been…

信息论 · 计算机科学 2024-03-12 Jiefeng Zhou , Zhen Li , Kang Hao Cheong , Yong Deng

The random access methods used for support of machine-type communications (MTC) in current cellular standards are derivatives of traditional framed slotted ALOHA and therefore do not support high user loads efficiently. Motivated by the…

信息论 · 计算机科学 2012-07-03 Nuno K. Pratas , Henning Thomsen , Cedomir Stefanovic , Petar Popovski

Whether a system is to be considered complex or not depends on how one searches for correlations. We propose a general scheme for calculation of entropies in lattice systems that has high flexibility in how correlations are successively…

统计力学 · 物理学 2015-06-18 Torbjørn Helvik , Kristian Lindgren

We compute the probability of satisfiability of a class of random Horn-SAT formulae, motivated by a connection with the nonemptiness problem of finite tree automata. In particular, when the maximum clause length is 3, this model displays a…

In Sequential Massive Random Access (SMRA), a set of correlated sources is jointly encoded and stored on a server, and clients want to access to only a subset of the sources. Since the number of simultaneous clients can be huge, the server…

信息论 · 计算机科学 2018-01-18 Elsa Dupraz , Thomas Maugey , Aline Roumy , Michel Kieffer

This paper presents a novel sequential estimator for the direction-of-arrival and polynomial coefficients of wideband polynomial-phase signals impinging on a sensor array. Addressing the computational challenges of Maximum-likelihood…

信号处理 · 电气工程与系统科学 2024-12-31 Kaleb Debre , Tai Fei , Marius Pesavento

We introduce a new approach to the numerical simulation of Scanning Transmission Electron Microscopy images. The Lattice Multislice Algorithm (LMA) takes advantage of the fact that electron waves passing through the specimen have limited…

数值分析 · 数学 2023-10-26 Christian Doberstein , Peter Binev

We study the entropy $S$ of longest increasing subsequences (LIS), i.e., the logarithm of the number of distinct LIS. We consider two ensembles of sequences, namely random permutations of integers and sequences drawn i.i.d.\ from a limited…

无序系统与神经网络 · 物理学 2020-06-09 Phil Krabbe , Hendrik Schawe , Alexander K. Hartmann

We consider the machine covering problem for selfish related machines. For a constant number of machines, m, we show a monotone polynomial time approximation scheme (PTAS) with running time that is linear in the number of jobs. It uses a…

计算机科学与博弈论 · 计算机科学 2007-05-23 Leah Epstein , Rob van Stee

This paper studies higher-order inference properties of nonparametric local polynomial regression methods under random sampling. We prove Edgeworth expansions for $t$ statistics and coverage error expansions for interval estimators that (i)…

计量经济学 · 经济学 2021-07-26 Sebastian Calonico , Matias D. Cattaneo , Max H. Farrell

In this paper, we consider a network of rate proportional processor sharing servers in which sessions with long-tailed duration arrive as Poisson processes. In particular, we assume that a session of type $n$ transmits at a rate $r_n$ bits…

性能 · 计算机科学 2014-11-12 Oczan Ozturk , Ravi R. Mazumdar , Nikolay B. Likhanov

A new class of truncation schemes of delta expansion on the lattice is studied. We show that the order of expansion in delta which is introduced as the dilation parameter can be taken large enough and the result gives rise to the Borel…

高能物理 - 格点 · 物理学 2008-12-18 Hirofumi Yamada

Completely random measures (CRMs) and their normalizations are a rich source of Bayesian nonparametric priors. Examples include the beta, gamma, and Dirichlet processes. In this paper we detail two major classes of sequential CRM…

统计理论 · 数学 2020-05-11 Trevor Campbell , Jonathan H. Huggins , Jonathan P. How , Tamara Broderick

This paper concerns extension of the classical Lagrange theorem, on the eventual periodicity of continued fraction expansions of quadratic surds, and the versions of it found in the literature in the case of complex numbers. In this…

数论 · 数学 2025-12-09 S. G. Dani , Ojas Sahasrabudhe