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Differentially private stochastic gradient descent (DP-SGD) offers the promise of training deep learning models while mitigating many privacy risks. However, there is currently a large accuracy gap between DP-SGD and normal SGD training.…

机器学习 · 计算机科学 2026-03-24 Xin Gu , Yingtai Xiao , Guanlin He , Jiamu Bai , Daniel Kifer , Kiwan Maeng

Controlling the false discovery rate (FDR) is a powerful approach to multiple testing. In many applications, the tested hypotheses have an inherent hierarchical structure. In this paper, we focus on the fixed sequence structure where the…

统计方法学 · 统计学 2016-11-11 Gavin Lynch , Wenge Guo , Sanat K. Sarkar , Helmut Finner

Small-Signal Stability Constrained Optimal Power Flow (SSSC-OPF) can provide additional stability measures and control strategies to guarantee the system to be small-signal stable. However, due to the nonsmooth property of the spectral…

最优化与控制 · 数学 2016-08-15 Peijie Li , Junjian Qi , Jianhui Wang , Hua Wei , Xiaoqing Bai , Feng Qiu

In neural networks, developing regularization algorithms to settle overfitting is one of the major study areas. We propose a new approach for the regularization of neural networks by the local Rademacher complexity called LocalDrop. A new…

机器学习 · 计算机科学 2021-03-02 Ziqing Lu , Chang Xu , Bo Du , Takashi Ishida , Lefei Zhang , Masashi Sugiyama

This paper is about a curious phenomenon. Suppose we have a data matrix, which is the superposition of a low-rank component and a sparse component. Can we recover each component individually? We prove that under some suitable assumptions,…

信息论 · 计算机科学 2009-12-21 Emmanuel J. Candes , Xiaodong Li , Yi Ma , John Wright

This paper presents a novel approach to handle the computational complexity in security-constrained unit commitment (SCUC) with corrective network reconfiguration (CNR) to harness the flexibility in transmission networks. This is achieved…

最优化与控制 · 数学 2020-07-21 Arun Venkatesh Ramesh , Xingpeng Li , Kory W. Hedman

This paper proposes and validates two new particle regularization techniques for the Smoothed Particle Hydrodynamics (SPH) numerical method to improve its stability and accuracy for free surface flow simulations. We introduce a general form…

流体动力学 · 物理学 2022-04-05 Mojtaba Jandaghian , Herman Musumari Siaben , Ahmad Shakibaeinia

A sequential detection and tracking (SDT) approach is proposed for detection and tracking of very low signal-to-noise (SNR) objects. The proposed approach is compared with two existing particle filter track-before-track (TBD) methods. It is…

系统与控制 · 电气工程与系统科学 2023-12-27 Reza Rezaie

This paper investigates the use of the cubic-regularized Newton method within a federated learning framework while addressing two major concerns that commonly arise in federated learning: privacy leakage and communication bottleneck. We…

机器学习 · 计算机科学 2025-03-18 Wei Huo , Changxin Liu , Kemi Ding , Karl Henrik Johansson , Ling Shi

With the popularity of GPS-enabled devices, a huge amount of trajectory data has been continuously collected and a variety of location-based services have been developed that greatly benefit our daily life. However, the released…

数据库 · 计算机科学 2022-07-11 Fengmei Jin , Wen Hua , Boyu Ruan , Xiaofang Zhou

The selective frequency damping (SFD) method is an alternative to classical Newton's method to obtain unstable steady-state solutions of dynamical systems. However this method has two main limitations: it does not converge for arbitrary…

流体动力学 · 物理学 2015-10-28 Bastien E. Jordi , Colin J. Cotter , Spencer J. Sherwin

Correlated noise mechanisms such as DP Matrix Factorization (DP-MF) have proven to be effective alternatives to DP-SGD in large-epsilon few-epoch training regimes. Significant work has been done to find the best correlated noise strategies,…

机器学习 · 计算机科学 2025-05-13 Ryan McKenna

Large-scale Dynamic Networks (LDNs) are becoming increasingly important in the Internet age, yet the dynamic nature of these networks captures the evolution of the network structure and how edge weights change over time, posing unique…

机器学习 · 计算机科学 2023-04-19 Qu Wang

Triple decomposition is a useful analytical method for extracting the mean value, organized coherent motion, and stochastic part from a fluctuating quantity. Although the pressure-sensitive paint (PSP) method is widely used to measure the…

This paper introduces a fast algorithm for randomized computation of a low-rank Dynamic Mode Decomposition (DMD) of a matrix. Here we consider this matrix to represent the development of a spatial grid through time e.g. data from a static…

计算机视觉与模式识别 · 计算机科学 2016-04-12 N. Benjamin Erichson , Carl Donovan

This paper presents a machine-learning-enhanced longitudinal scanline method to extract vehicle trajectories from high-angle traffic cameras. The Dynamic Mode Decomposition (DMD) method is applied to extract vehicle strands by decomposing…

计算机视觉与模式识别 · 计算机科学 2023-10-03 Tianya T. Zhang , Peter J. Jin

False positives in pedestrian detection remain a challenge that has yet to be effectively resolved. To address this issue, this paper proposes a Full-stage Refined Proposal (FRP) algorithm aimed at eliminating these false positives within a…

计算机视觉与模式识别 · 计算机科学 2025-08-05 Qiang Guo , Rubo Zhang , Bingbing Zhang , Junjie Liu , Jianqing Liu

Sparse Matricized Tensor Times Khatri-Rao Product (spMTTKRP) is the most time-consuming compute kernel in sparse tensor decomposition. In this paper, we introduce a novel algorithm to minimize the execution time of spMTTKRP across all modes…

分布式、并行与集群计算 · 计算机科学 2023-10-17 Sasindu Wijeratne , Rajgopal Kannan , Viktor Prasanna

In this paper, we apply the Feature Space Decomposition (FSD) method developed in [LS24, GLS25, LSSW26, ALSS26] to obtain, under fairly general conditions, matching upper and lower bounds for the population excess risk of spectral methods…

统计理论 · 数学 2026-05-18 Guillaume Lecué , Zhifan Li , Zong Shang

We consider the problem of direction-of-arrival (DOA) estimation in unknown partially correlated noise environments where the noise covariance matrix is sparse. A sparse noise covariance matrix is a common model for a sparse array of…