Two-channel forward NLMS algorithm combined with simple variable step-sizes for speech quality enhancement
Sign Up to like & getrecommendations! Published in 2019 at "Analog Integrated Circuits and Signal Processing"
DOI: 10.1007/s10470-018-1269-3
Abstract: This paper addresses the problem of speech quality enhancement by adaptive two-channel filtering algorithms. Recently, the forward blind source separation structure has been proposed and combined with normalized least-mean-square algorithm (FNLMS). The main drawback of… read more here.
Keywords: two channel; step sizes; step; speech quality ... See more keywords
Achieving geometric convergence for distributed optimization with Barzilai-Borwein step sizes
Sign Up to like & getrecommendations! Published in 2021 at "Science China Information Sciences"
DOI: 10.1007/s11432-020-3256-x
Abstract: We consider a distributed multi-agent optimization problem over a time-invariant undirected graph, where each agent possesses a local objective function and all agents collaboratively minimize the average of all objective functions through local computations and… read more here.
Keywords: step sizes; step; geometric convergence; method ... See more keywords
Distributed medium viscosity yields quasi-exponential step-size probability distributions in heterogeneous media.
Sign Up to like & getrecommendations! Published in 2022 at "Soft matter"
DOI: 10.1039/d2sm00952h
Abstract: The analysis of the statistics of random walks undertaken by passive particles in complex media has important implications in a number of areas including pathogen transport and drug delivery. In several systems in which heterogeneity… read more here.
Keywords: step; step size; step sizes; viscosity ... See more keywords
Distributed primal-dual optimisation method with uncoordinated time-varying step-sizes
Sign Up to like & getrecommendations! Published in 2018 at "International Journal of Systems Science"
DOI: 10.1080/00207721.2018.1442886
Abstract: ABSTRACT This paper is concerned with the distributed optimisation problem over a multi-agent network, where the objective function is described by a sum of all the local objectives of agents. The target of agents is… read more here.
Keywords: time varying; step sizes; optimisation; uncoordinated time ... See more keywords
Distributed Weighted Gradient Descent Method With Adaptive Step Sizes for Energy Management of Microgrids
Sign Up to like & getrecommendations! Published in 2024 at "IEEE Transactions on Smart Grid"
DOI: 10.1109/tsg.2024.3400982
Abstract: Economic dispatch problems for power systems become more challenging as the system sizes, types and data increase significantly. Facing these complex optimization problems, centralized optimization methods may fall short and appear inefficient. Conversely, distributed optimization… read more here.
Keywords: gradient descent; method; adaptive step; step sizes ... See more keywords
A parameterized Barzilai-Borwein method via interpolated least squares
Sign Up to like & getrecommendations! Published in 2024 at "Journal of Industrial and Management Optimization"
DOI: 10.3934/jimo.2025130
Abstract: The Barzilai-Borwein (BB) method is an effective gradient descent algorithm for solving unconstrained optimization problems. Based on the observation of two classical BB step sizes, by constructing an interpolated least squares model, we propose a… read more here.
Keywords: method; least squares; borwein method; barzilai borwein ... See more keywords