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For a sensor network, a tractable spatially-dependent node deployment model is presented with the property that the density is inversely proportional to the sink distance. A stochastic model is formulated to examine message advancements…

概率论 · 数学 2015-03-13 H. Paul Keeler

A comprehensive toolkit is developed for regression analysis of directional data based on a flexible class of angular Gaussian distributions. Informative testing procedures for isotropy and covariate effects on the directional response are…

统计方法学 · 统计学 2024-08-07 Zehao Yu , Xianzheng Huang

Graph partitioning is the problem of dividing the nodes of a graph into balanced partitions while minimizing the edge cut across the partitions. Due to its combinatorial nature, many approximate solutions have been developed, including…

机器学习 · 计算机科学 2019-03-05 Azade Nazi , Will Hang , Anna Goldie , Sujith Ravi , Azalia Mirhoseini

Linear regression with normally distributed errors - including particular cases such as ANOVA, Student's t-test or location-scale inference - is a widely used statistical procedure. In this case the ordinary least squares estimator…

统计方法学 · 统计学 2019-09-18 Alain Desgagné

For each $p \in (0,2]$, we present a randomized algorithm that returns an $\epsilon$-approximation of the $p$th frequency moment of a data stream $F_p = \sum_{i = 1}^n \abs{f_i}^p$. The algorithm requires space $O(\epsilon^{-2} \log…

数据结构与算法 · 计算机科学 2010-06-21 Sumit Ganguly

A matching in a graph is induced if no two of its edges are joined by an edge, and finding a large induced matching is a very hard problem. Lin et al. (Approximating weighted induced matchings, Discrete Applied Mathematics 243 (2018)…

组合数学 · 数学 2018-12-17 Julien Baste , Maximilian Fürst , Dieter Rautenbach

Sparse view computed tomography (CT) reconstruction poses a challenging ill-posed inverse problem, necessitating effective regularization techniques. In this letter, we employ $L_p$-norm ($0<p<1$) regularization to induce sparsity and…

图像与视频处理 · 电气工程与系统科学 2024-08-14 Yu Guo , Caiying Wu , Yaxin Li , Qiyu Jin , Tieyong Zeng

Stochastic trajectory optimization methods like STOMP enable planning with non-differentiable costs, offering substantial flexibility over gradient-based approaches. We show that STOMP implicitly minimizes the KL divergence from a Boltzmann…

机器人学 · 计算机科学 2026-05-11 Hongzhe Yu , Zinuo Chang , Yongxin Chen

We introduce a LiDAR inertial odometry (LIO) framework, called LiPO, that enables direct comparisons of different iterative closest point (ICP) point cloud registration methods. The two common ICP methods we compare are point-to-point (P2P)…

In many real-world applications of machine learning classifiers, it is essential to predict the probability of an example belonging to a particular class. This paper proposes a simple technique for predicting probabilities based on…

机器学习 · 计算机科学 2012-06-22 Aditya Menon , Xiaoqian Jiang , Shankar Vembu , Charles Elkan , Lucila Ohno-Machado

Deep learning (DL) has recently emerged as an efficient approach for array processing tasks such as signal detection and direction of arrival. However, DL models lack statistical guarantees and, moreover, are highly susceptible to…

信号处理 · 电气工程与系统科学 2026-05-08 Nian-Cin Wang , Rajeev Sahay

We give an algorithm to compute a one-dimensional shape-constrained function that best fits given data in weighted-$L_{\infty}$ norm. We give a single algorithm that works for a variety of commonly studied shape constraints including…

数据结构与算法 · 计算机科学 2019-05-30 David Durfee , Yu Gao , Anup B. Rao , Sebastian Wild

Least-absolute-deviations (LAD) line fitting is robust to outliers but computationally more involved than least squares regression. Although the literature includes linear and near-linear time algorithms for the LAD line fitting problem,…

机器学习 · 统计学 2025-12-25 Stefan Volz , Martin Storath , Andreas Weinmann

We describe a new data structure for dynamic nearest neighbor queries in the plane with respect to a general family of distance functions. These include $L_p$-norms and additively weighted Euclidean distances. Our data structure supports…

计算几何 · 计算机科学 2020-10-02 Haim Kaplan , Wolfgang Mulzer , Liam Roditty , Paul Seiferth , Micha Sharir

We propose Flow-GRPO, the first method to integrate online policy gradient reinforcement learning (RL) into flow matching models. Our approach uses two key strategies: (1) an ODE-to-SDE conversion that transforms a deterministic Ordinary…

计算机视觉与模式识别 · 计算机科学 2025-10-28 Jie Liu , Gongye Liu , Jiajun Liang , Yangguang Li , Jiaheng Liu , Xintao Wang , Pengfei Wan , Di Zhang , Wanli Ouyang

In this paper, we study the problem of estimating smooth Generalized Linear Models (GLMs) in the Non-interactive Local Differential Privacy (NLDP) model. Different from its classical setting, our model allows the server to access some…

机器学习 · 计算机科学 2022-08-23 Di Wang , Lijie Hu , Huanyu Zhang , Marco Gaboardi , Jinhui Xu

Current robotic planning methods often rely on predicting multi-frame images with full pixel details. While this fine-grained approach can serve as a generic world model, it introduces two significant challenges for downstream policy…

This paper proposes a new method of inference in high-dimensional regression models and high-dimensional IV regression models. Estimation is based on a combined use of the orthogonal greedy algorithm, high-dimensional Akaike information…

计量经济学 · 经济学 2023-01-03 Jooyoung Cha , Harold D. Chiang , Yuya Sasaki

Graph analysis has become increasingly popular with the prevalence of big data and machine learning. Traditional graph data analysis methods often assume the existence of a trusted third party to collect and store the graph data, which does…

密码学与安全 · 计算机科学 2024-12-31 Xi He , Kai Huang , Qingqing Ye , Haibo Hu

We study planar drawings of directed graphs in the L-drawing standard. We provide necessary conditions for the existence of these drawings and show that testing for the existence of a planar L-drawing is an NP-complete problem. Motivated by…

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