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A new method for optimal sensor placement based on variable importance of machine learned models is proposed. With its simplicity, adaptivity, and low computational cost, the method offers many advantages over existing approaches. The new…

流体动力学 · 物理学 2017-02-02 Richard Semaan

With the advent of extremely large-scale MIMO (XL-MIMO), mmWave/THz bands and ultra-wideband transmission, future 6G systems demand real-time positioning with centimeter or even millimeter level accuracy. This paper addresses the pronounced…

信息论 · 计算机科学 2025-09-22 Aibiao Zhang , Weizheng Zhang , Chiya Zhang

In most photoacoustic (PA) measurements, variations in speed-of-sound (SOS) of the subject are neglected under the assumption of acoustic homogeneity. Biological tissue with spatially heterogeneous SOS cannot be accurately reconstructed…

This paper considers the optimal sensor allocation for estimating the emission rates of multiple sources in a two-dimensional spatial domain. Locations of potential emission sources are known (e.g., factory stacks), and the number of…

统计计算 · 统计学 2025-09-09 Xinchao Liu , Dzung Phan , Youngdeok Hwang , Levente Klein , Xiao Liu , Kyongmin Yeo

We investigate joint bistatic positioning (BP) and monostatic sensing (MS) within a multi-input multi-output orthogonal frequency-division system. Based on the derived Cram\'er-Rao Bounds (CRBs), we propose novel beamforming optimization…

信号处理 · 电气工程与系统科学 2025-03-06 Yuchen Zhang , Hui Chen , Pinjun Zheng , Boyu Ning , Hong Niu , Henk Wymeersch , Tareq Y. Al-Naffouri

We address the task of 6D multi-object pose: given a set of known 3D objects and an RGB or RGB-D input image, we detect and estimate the 6D pose of each object. We propose a new approach to 6D object pose estimation which consists of an…

计算机视觉与模式识别 · 计算机科学 2022-04-28 Lahav Lipson , Zachary Teed , Ankit Goyal , Jia Deng

Practical object pose estimation demands robustness against occlusions to the target object. State-of-the-art (SOTA) object pose estimators take a two-stage approach, where the first stage predicts 2D landmarks using a deep network and the…

计算机视觉与模式识别 · 计算机科学 2021-10-25 Bo Chen , Tat-Jun Chin , Marius Klimavicius

We consider the stochastic nested composition optimization problem where the objective is a composition of two expected-value functions. We proposed the stochastic ADMM to solve this complicated objective. In order to find an $\epsilon$…

机器学习 · 统计学 2019-11-14 Zhongruo Wang

Realizing relative localization by leveraging inter-robot local measurements is a challenging problem, especially in the presence of measurement noise. Motivated by this challenge, in this paper we propose a novel and systematic 3-D…

机器人学 · 计算机科学 2026-04-03 Chenyang Liang , Liangming Chen , Baoyi Cui , Jie Mei

We present a novel compressed sensing recovery algorithm - termed Bayesian Optimal Structured Signal Approximate Message Passing (BOSSAMP) - that jointly exploits the prior distribution and the structured sparsity of a signal that shall be…

信息论 · 计算机科学 2015-08-06 Martin Mayer , Norbert Goertz

Bundle Adjustment (BA) refers to the problem of simultaneous determination of sensor poses and scene geometry, which is a fundamental problem in robot vision. This paper presents an efficient and consistent bundle adjustment method for…

机器人学 · 计算机科学 2024-06-18 Zheng Liu , Xiyuan Liu , Fu Zhang

Vision-based pose estimation of articulated robots with unknown joint angles has applications in collaborative robotics and human-robot interaction tasks. Current frameworks use neural network encoders to extract image features and…

机器人学 · 计算机科学 2025-05-05 Raktim Gautam Goswami , Prashanth Krishnamurthy , Yann LeCun , Farshad Khorrami

6D object pose estimation in cluttered scenes remains challenging due to severe occlusion and sensor noise. We propose MAPRPose, a two-stage framework that leverages mask-aware correspondences for pose proposal and amodal-driven…

计算机视觉与模式识别 · 计算机科学 2026-04-23 Yang Luo , Yan Gong , Yongsheng Gao , Xiaoying Sun , Jie Zhao

When the nonconvex problem is complicated by stochasticity, the sample complexity of stochastic first-order methods may depend linearly on the problem dimension, which is undesirable for large-scale problems. In this work, we propose…

最优化与控制 · 数学 2024-10-01 Yue Xie , Jiawen Bi , Hongcheng Liu

Aligning electron density maps from Cryogenic electron microscopy (cryo-EM) is a first key step for studying multiple conformations of a biomolecule. As this step remains costly and challenging, with standard alignment tools being…

生物大分子 · 定量生物学 2022-10-19 A. Tajmir Riahi , G. Woollard , F. Poitevin , A. Condon , K. Dao Duc

The Bayesian inversion method demonstrates significant potential for solving inverse problems, enabling both point estimation and uncertainty quantification (UQ). However, Bayesian maximum a posteriori (MAP) estimation may become unstable…

数值分析 · 数学 2025-06-04 Ruibiao Song , Liying Zhang

A state estimator is derived for an agent with the ability to measure single ranges to fixed points in its environment, and equipped with an accelerometer and a rate gyroscope. The state estimator makes no agent-specific assumptions, and…

机器人学 · 计算机科学 2018-04-27 Saman Fahandezh-Saadi , Mark W. Mueller

The task of 6D object pose estimation from RGB images is an important requirement for autonomous service robots to be able to interact with the real world. In this work, we present a two-step pipeline for estimating the 6 DoF translation…

计算机视觉与模式识别 · 计算机科学 2021-07-23 Moritz Zappel , Simon Bultmann , Sven Behnke

We study the problem of estimating the mode and maximum of an unknown regression function in the presence of noise. We adopt the Bayesian approach by using tensor-product B-splines and endowing the coefficients with Gaussian priors. In the…

统计理论 · 数学 2018-03-16 William Weimin Yoo , Subhashis Ghosal

For solving pseudo-convex global optimization problems, we present a novel fully adaptive steepest descent method (or ASDM) without any hard-to-estimate parameters. For the step-size regulation in an $\varepsilon$-normalized direction, we…

最优化与控制 · 数学 2021-08-12 Z. R. Gabidullina
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