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Recently, the $\l_{p}$-norm regularization minimization problem $(P_{p}^{\lambda})$ has attracted great attention in compressed sensing. However, the $\l_{p}$-norm $\|x\|_{p}^{p}$ in problem $(P_{p}^{\lambda})$ is nonconvex and…

最优化与控制 · 数学 2018-04-26 Angang Cui , Jigen Peng , Haiyang Li , Meng Wen , Jiajun Xiong

Multichannel active noise control (MCANC) is widely utilized to achieve significant noise cancellation area in the complicated acoustic field. Meanwhile, the filter-x least mean square (FxLMS) algorithm gradually becomes the benchmark…

音频与语音处理 · 电气工程与系统科学 2023-08-08 Dongyuan Shi , Woon-Seng Gan , Bhan Lam , Shulin Wen , Xiaoyi Shen

Filtered backprojection (FBP) is an efficient and popular class of tomographic image reconstruction methods. In photoacoustic tomography, these algorithms are based on theoretically exact analytic inversion formulas which results in…

图像与视频处理 · 电气工程与系统科学 2019-08-05 Johannes Schwab , Stephan Antholzer , Markus Haltmeier

Matrices with low numerical rank are omnipresent in many signal processing and data analysis applications. The pivoted QLP (p-QLP) algorithm constructs a highly accurate approximation to an input low-rank matrix. However, it is…

机器学习 · 计算机科学 2021-06-16 Maboud F. Kaloorazi , Jie Chen

Recently, Petrik et al. demonstrated that L1Regularized Approximate Linear Programming (RALP) could produce value functions and policies which compared favorably to established linear value function approximation techniques like LSPI.…

机器学习 · 计算机科学 2012-10-19 Gavin Taylor , Ron Parr

Noise is a part of data whether the data is from measurement, experiment or ... A few techniques are suggested for noise reduction to improve the data quality in recent years some of which are based on wavelet, orthogonalization and neural…

计算工程、金融与科学 · 计算机科学 2023-08-02 Negin Bagherpour , Abbas Mohammadiyan

Many speech and music analysis and processing schemes rely on an estimate of the fundamental frequency $f_0$ of periodic signal components. Most established schemes apply rather unspecific signal models such as sinusoidal models to the…

声音 · 计算机科学 2021-12-23 Volker Hohmann

In numerous substitution models for the $\l_{0}$-norm minimization problem $(P_{0})$, the $\l_{p}$-norm minimization $(P_{p})$ with $0<p<1$ have been considered as the most natural choice. However, the non-convex optimization problem…

最优化与控制 · 数学 2018-04-27 Angang Cui , Jigen Peng , Haiyang Li

We introduce a locally differentially private (LDP) algorithm for online federated learning that employs temporally correlated noise to improve utility while preserving privacy. To address challenges posed by the correlated noise and local…

机器学习 · 计算机科学 2025-03-13 Jiaojiao Zhang , Linglingzhi Zhu , Dominik Fay , Mikael Johansson

Interfering sources, background noise and reverberation degrade speech quality and intelligibility in hearing aid applications. In this paper, we present an adaptive algorithm aiming at dereverberation, noise and interferer reduction and…

音频与语音处理 · 电气工程与系统科学 2023-03-14 Henri Gode , Simon Doclo

The recursive logit (RL) model provides a flexible framework for modeling sequential decision-making in transportation and choice networks, with important applications in route choice analysis, multiple discrete choice problems, and…

计量经济学 · 经济学 2025-10-21 Hung Tran , Tien Mai , Minh Hoang Ha

The pursuit of energy-efficient and adaptive artificial intelligence (AI) has positioned neuromorphic computing as a promising alternative to conventional computing. However, achieving learning on these platforms requires techniques that…

机器学习 · 计算机科学 2026-01-27 Jesús García Fernández , Nasir Ahmad , Marcel van Gerven

In this work, we propose a robust adaptive filtering approach for active noise control applications in the presence of impulsive noise. In particular, we develop the filtered-x hyperbolic tangent exponential generalized Kernel M-estimate…

机器学习 · 计算机科学 2025-08-19 Iam Kim de S. Hermont , Andre R. Flores , Rodrigo C. de Lamare

This paper describes a fast algorithm for recovering low-rank matrices from their linear measurements contaminated with Poisson noise: the Poisson noise Maximum Likelihood Singular Value thresholding (PMLSV) algorithm. We propose a convex…

机器学习 · 统计学 2014-12-22 Yang Cao , Yao Xie

While originally developed for continuous control problems, Proximal Policy Optimization (PPO) has emerged as the work-horse of a variety of reinforcement learning (RL) applications, including the fine-tuning of generative models.…

In this paper, a neural network based real-time speech recognition (SR) system is developed using an FPGA for very low-power operation. The implemented system employs two recurrent neural networks (RNNs); one is a speech-to-character RNN…

计算与语言 · 计算机科学 2016-10-04 Minjae Lee , Kyuyeon Hwang , Jinhwan Park , Sungwook Choi , Sungho Shin , Wonyong Sung

Active noise control (ANC) systems can efficiently attenuate low-frequency noises by introducing anti-noises to combine with the unwanted noises. In ANC systems, the filtered-x least mean square (FxLMS) and filtered-X normalized…

系统与控制 · 电气工程与系统科学 2022-08-18 Zhengding Luo , Dongyuan Shi , Junwei Ji , Woon-seng Gan

A new Lp-norm constraint least mean square (Lp-LMS) algorithm with new strategy of varying p is presented, which is applied to system identification in this letter. The parameter p is iteratively adjusted by the gradient method applied to…

系统与控制 · 计算机科学 2016-03-31 Yong Feng , Fei Chen , Jiasong Wu

First-order Policy Gradient (FoPG) algorithms such as Backpropagation through Time and Analytical Policy Gradients leverage local simulation physics to accelerate policy search, significantly improving sample efficiency in robot control…

机器人学 · 计算机科学 2024-10-07 Jing Yuan Luo , Yunlong Song , Victor Klemm , Fan Shi , Davide Scaramuzza , Marco Hutter

The method of filtered back projection (FBP) is a widely used reconstruction technique in X-ray computerized tomography (CT), which is particularly important in clinical diagnostics. To reduce scanning times and radiation doses in medical…

数值分析 · 数学 2024-08-14 Matthias Beckmann , Judith Nickel