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Band structure engineering in surface acoustic wave (SAW) metamaterials could advance both classical telecommunications and quantum information processing. However, no imaging technique has demonstrated the necessary capability to resolve…

Electric charge detection by atomic force microscopy (AFM) with single- electron resolution (e-EFM) is a promising way to investigate the electronic level structure of individual quantum dots (QD). The oscillating AFM tip modulates the…

介观与纳米尺度物理 · 物理学 2017-01-10 Yoichi Miyahara , Antoine Roy-Gobeil , Peter Grutter

In many multi-microphone algorithms, an estimate of the relative transfer functions (RTFs) of the desired speaker is required. Recently, a computationally efficient RTF vector estimation method was proposed for acoustic sensor networks,…

音频与语音处理 · 电气工程与系统科学 2023-04-07 Wiebke Middelberg , Simon Doclo

We propose a nonparametric estimator of the empirical distribution function (EDF) of the latent spot variance of the log-price of a financial asset. We show that over a fixed time span our realized EDF (or REDF) -- inferred from noisy…

计量经济学 · 经济学 2026-01-29 Kim Christensen , Martin Thyrsgaard , Bezirgen Veliyev

We present a certifiable algorithm to calculate the eigenvalue density function -- the number of eigenvalues within an infinitesimal interval -- for an arbitrary 1D interacting quantum spin system. Our method provides an arbitrarily…

强关联电子 · 物理学 2007-05-23 Tobias J. Osborne

Conditional density estimation (CDE) is a fundamental task in machine learning that aims to model the full conditional law $\mathbb{P}(\mathbf{y} \mid \mathbf{x})$, beyond mere point prediction (e.g., mean, mode). A core challenge is…

机器学习 · 计算机科学 2026-03-27 Chenglong Song , Mazharul Islam , Lin Wang , Bing Chen , Bo Yang

The eigenvalue density of a matrix plays an important role in various types of scientific computing such as electronic-structure calculations. In this paper, we propose a quantum algorithm for computing the eigenvalue density in a given…

量子物理 · 物理学 2021-12-13 Yasunori Futamura , Xiucai Ye , Tetsuya Sakurai

The density functional theory (DFT) in electronic structure calculations can be formulated as either a nonlinear eigenvalue or direct minimization problem. The most widely used approach for solving the former is the so-called…

计算物理 · 物理学 2013-08-14 Xin Zhang , Jinwei Zhu , Zaiwen Wen , Aihui Zhou

Searches for impulsive, astrophysical transients are often highly computationally demanding. A notable example is the dedispersion process required for performing blind searches for Fast Radio Bursts (FRBs) in radio telescope data. We…

天体物理仪器与方法 · 物理学 2024-12-17 Vivek Gupta , Keith Bannister , Chris Flynn , Clancy James

This paper derives the analytical solution of a novel distributed node-specific block-diagonal linearly constrained minimum variance beamformer from the centralized linearly constrained minimum variance (LCMV) beamformer when considering…

音频与语音处理 · 电气工程与系统科学 2020-10-27 Xinwei Guo , Minmin Yuan , Chengshi Zheng , Xiaodong Li

An atomic force microscope (AFM) is capable of producing ultra-high resolution measurements of nanoscopic objects and forces. It is an indispensable tool for various scientific disciplines such as molecular engineering, solid-state physics,…

应用统计 · 统计学 2017-06-28 Bryan Yates , Aleksander Labuda , Martin Lysy

Deep learning has emerged as the preferred modeling approach for automatic ECG analysis. In this study, we investigate three elements aimed at improving the quantitative accuracy of such systems. These components consistently enhance…

信号处理 · 电气工程与系统科学 2023-08-30 Temesgen Mehari , Nils Strodthoff

Single-index models are natural extensions of linear models and circumvent the so-called curse of dimensionality. They are becoming increasingly popular in many scientific fields including biostatistics, medicine, economics and financial…

统计理论 · 数学 2012-11-26 Xia Cui , Wolfgang Karl Härdle , Lixing Zhu

Concise and reliable modeling for aggregating power flexibility of distributed energy resources in active distribution networks (ADNs) is a crucial technique for coordinating transmission and distribution networks. Our recent research has…

系统与控制 · 电气工程与系统科学 2023-12-11 Yilin Wen , Zechun Hu , Jinhua He , Yi Guo

This paper studies the fundamental problem of learning energy-based model (EBM) in the latent space of the generator model. Learning such prior model typically requires running costly Markov Chain Monte Carlo (MCMC). Instead, we propose to…

机器学习 · 计算机科学 2022-09-20 Zhisheng Xiao , Tian Han

This paper is concerned with error estimates of the fully discrete generalized finite element method (GFEM) with optimal local approximation spaces for solving elliptic problems with heterogeneous coefficients. The local approximation…

数值分析 · 数学 2021-10-01 Chupeng Ma , Robert Scheichl

This work studies how to estimate the mean-field density of large-scale systems in a distributed manner. Such problems are motivated by the recent swarm control technique that uses mean-field approximations to represent the collective…

系统与控制 · 电气工程与系统科学 2021-12-21 Tongjia Zheng , Qing Han , Hai Lin

This paper considers estimating the parameters in a regime-switching stochastic differential equation(SDE) driven by Normal Inverse Gaussian(NIG) noise. The model under consideration incorporates a continuous-time finite state Markov chain…

统计计算 · 统计学 2024-12-10 Yuzhong Cheng , Hiroki Masuda

Fueled by applications in sensor networks, these years have witnessed a surge of interest in distributed estimation and filtering. A new approach is hereby proposed for the Distributed Kalman Filter (DKF) by integrating a local covariance…

系统与控制 · 计算机科学 2017-03-17 Ye Yuan , Ling Shi , Jun Liu , Zhiyong Chen , Hai-Tao Zhang , Jorge Goncalves

The spectral form factor (SFF) is a powerful diagnostic of random matrix behavior in quantum many-body systems. We introduce a family of random circuit ensembles whose SFFs can be computed \textit{exactly}. These ensembles describe the…

统计力学 · 物理学 2025-04-24 Tatsuhiko N. Ikeda , Lev Vidmar , Michael O. Flynn