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相关论文: L2-Stability Analysis of the SM-NLMS Algorithm

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Robustness evaluation for Natural Language to SQL (NL2SQL) systems is essential because real-world database environments are dynamic, noisy, and continuously evolving, whereas conventional benchmark evaluations typically assume static…

计算与语言 · 计算机科学 2026-03-19 Lifu Tu , Rongguang Wang , Tao Sheng , Sujjith Ravi , Dan Roth

To overcome the tradeoff of the conventional normalized least mean square (NLMS) algorithm between fast convergence rate and low steady-state misalignment, this paper proposes a variable step size (VSS) NLMS algorithm by devising a new…

系统与控制 · 计算机科学 2015-04-22 Yi Yu , Haiquan Zhao

Most detection algorithms in spatial modulation (SM) are formulated as linear regression via the regularized least-squares (RLS) method. In this method, the transmit signal is estimated by minimizing the residual sum of squares penalized…

信息论 · 计算机科学 2019-05-15 Ali Bereyhi , Saba Asaad , Bernhard Gäde , Ralf R. Müller

When the input signal is correlated input signals, and the input and output signal is contaminated by Gaussian noise, the total least squares normalized subband adaptive filter (TLS-NSAF) algorithm shows good performance. However, when it…

信号处理 · 电气工程与系统科学 2023-07-21 Haiquan Zhao , Zian Cao , Yida Chen

Motivated by the need for the rigorous analysis of the numerical stability of variational least-squares kernel-based methods for solving second-order elliptic partial differential equations, we provide previously lacking stability…

数值分析 · 数学 2024-12-17 Meng Chen , Leevan Ling , Dongfang Yun

The stability of word embedding algorithms, i.e., the consistency of the word representations they reveal when trained repeatedly on the same data set, has recently raised concerns. We here compare word embedding algorithms on three corpora…

计算与语言 · 计算机科学 2019-04-09 Johannes Hellrich , Bernd Kampe , Udo Hahn

This paper represents a novel online self-learning disturbance observer (SLDO) by benefiting from the combination of a type-2 neuro-fuzzy structure (T2NFS), feedback-error learning scheme and sliding mode control (SMC) theory. The SLDO is…

系统与控制 · 电气工程与系统科学 2021-03-30 Erkan Kayacan , Joshua M. Peschel , Girish Chowdhary

We investigate the performance of distributed least-mean square (LMS) algorithms for parameter estimation over sensor networks where the regression data of each node are corrupted by white measurement noise. Under this condition, we show…

系统与控制 · 计算机科学 2016-11-18 Reza Abdolee , Benoit Champagne

For a nondegenerate analytic system with a conserved quantity, a classic result by Lyapunov guarantees the existence of an analytic manifold of periodic orbits tangent to any two-dimensional, elliptic eigenspace of a fixed point satisfying…

动力系统 · 数学 2019-07-16 Rafael de la Llave , Florian Kogelbauer

The purpose of this note is to discuss some aspects of recently proposed fractional-order variants of complex least mean square (CLMS) and normalized least mean square (NLMS) algorithms in ``Design of Fractional-order Variants of Complex…

最优化与控制 · 数学 2020-07-28 Shujaat Khan , Abdul Wahab , Imran Naseem , Muhammad Moinuddin

Designing learning algorithms that are resistant to perturbations of the underlying data distribution is a problem of wide practical and theoretical importance. We present a general approach to this problem focusing on unsupervised…

机器学习 · 计算机科学 2021-02-22 Andreas Maurer , Daniela A. Parletta , Andrea Paudice , Massimiliano Pontil

The diffusion least mean square (DLMS) and the diffusion normalized least mean square (DNLMS) algorithms are analyzed for a network having a fusion center. This structure reduces the dimensionality of the resulting stochastic models while…

系统与控制 · 电气工程与系统科学 2021-08-06 Eweda Eweda , Neil J. Bershad , Jose C. M. Bermudez

Performance analysis of $l_0$ norm constrained Recursive least Squares (RLS) algorithm is attempted in this paper. Though the performance pretty attractive compared to its various alternatives, no thorough study of theoretical analysis has…

信息论 · 计算机科学 2016-02-11 Samrat Mukhopadhyay , Bijit Kumar Das , Mrityunjoy Chakraborty

The sparsity-aware zero attractor least mean square (ZA-LMS) algorithm manifests much lower misadjustment in strongly sparse environment than its sparsity-agnostic counterpart, the least mean square (LMS), but is shown to perform worse than…

信息论 · 计算机科学 2016-05-11 Bijit Kumar Das , Mrityunjoy Chakraborty

This paper presents a robust, distributed algorithm to solve general linear programs. The algorithm design builds on the characterization of the solutions of the linear program as saddle points of a modified Lagrangian function. We show…

最优化与控制 · 数学 2014-09-26 Dean Richert , Jorge Cortes

In this letter, we investigate the shrinkage problem for the non-local means (NLM) image denoising. In particular, we derive the closed-form of the optimal blockwise shrinkage for NLM that minimizes the Stein's unbiased risk estimator…

计算机视觉与模式识别 · 计算机科学 2015-05-05 Yue Wu , Brian Tracey , Premkumar Natarajan , Joseph P. Noonan

We consider numerical instability that can be observed in simulations of localized solutions of the generalized nonlinear Schr\"odinger equation (NLS) by a split-step method where the linear part of the evolution is solved by a…

斑图形成与孤子 · 物理学 2014-10-15 Taras I. Lakoba

State space subspace algorithms for input-output systems have been widely applied but also have a reasonably well-developedasymptotic theory dealing with consistency. However, guaranteeing the stability of the estimated system matrix is a…

系统与控制 · 电气工程与系统科学 2024-08-19 Xinhui Rong , Victor Solo

We study the problem of distributed adaptive estimation over networks where nodes cooperate to estimate physical parameters that can vary over both space and time domains. We use a set of basis functions to characterize the space-varying…

系统与控制 · 计算机科学 2015-07-22 Reza Abdolee , Benoit Champagne , Ali H. Sayed

We consider the problem of average consensus in a distributed system comprising a set of nodes that can exchange information among themselves. We focus on a class of algorithms for solving such a problem whereby each node maintains a state…

多智能体系统 · 计算机科学 2024-03-12 Christoforos N. Hadjicostis , Alejandro D. Dominguez-Garcia