Search Results - "BAZERQUE, ANDRÉS"
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Distributed Sparse Linear Regression
Published in IEEE transactions on signal processing (01-10-2010)“…The Lasso is a popular technique for joint estimation and continuous variable selection, especially well-suited for sparse and possibly under-determined linear…”
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Distributed Scheduling and Resource Allocation for Cognitive OFDMA Radios
Published in Mobile networks and applications (01-10-2008)“…Scheduling spectrum access and allocating power and rate resources are tasks affecting critically the performance of wireless cognitive radio (CR) networks…”
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Group-Lasso on Splines for Spectrum Cartography
Published in IEEE transactions on signal processing (01-10-2011)“…The unceasing demand for continuous situational awareness calls for innovative and large-scale signal processing algorithms, complemented by collaborative and…”
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Inference of gene regulatory networks with sparse structural equation models exploiting genetic perturbations
Published in PLoS computational biology (01-05-2013)“…Integrating genetic perturbations with gene expression data not only improves accuracy of regulatory network topology inference, but also enables learning of…”
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Rank Regularization and Bayesian Inference for Tensor Completion and Extrapolation
Published in IEEE transactions on signal processing (01-11-2013)“…A novel regularizer of the PARAFAC decomposition factors capturing the tensor's rank is proposed in this paper, as the key enabler for completion of three-way…”
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Group sparse Lasso for cognitive network sensing robust to model uncertainties and outliers
Published in Physical communication (01-06-2012)“…To account for variations in the frequency, time, and space dimensions, dynamic re-use of licensed bands under the cognitive radio (CR) paradigm calls for…”
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Multi-Task Bias-Variance Trade-Off Through Functional Constraints
Published in ICASSP 2023 - 2023 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP) (04-06-2023)“…Multi-task learning aims to acquire a set of functions, either regressors or classifiers, that perform well for diverse tasks. At its core, the idea behind…”
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Conference Proceeding -
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Online Adaptive Estimation of Sparse Signals: Where RLS Meets the $\ell_1$-Norm
Published in IEEE transactions on signal processing (01-07-2010)Get full text
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Stochastic Policy Gradient Ascent in Reproducing Kernel Hilbert Spaces
Published in IEEE transactions on automatic control (01-08-2021)“…Reinforcement learning consists of finding policies that maximize an expected cumulative long-term reward in a Markov decision process with unknown transition…”
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Learning to Act Safely With Limited Exposure and Almost Sure Certainty
Published in IEEE transactions on automatic control (01-05-2023)“…This paper puts forward the concept that learning to take safe actions in unknown environments, even with probability one guarantees, can be achieved without…”
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Policy Gradient for Continuing Tasks in Discounted Markov Decision Processes
Published in IEEE transactions on automatic control (01-09-2022)“…Reinforcement learning aims to find policies that maximize an expected cumulative reward in Markov decision processes with unknown transition probabilities…”
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Multi-Task Reinforcement Learning in Reproducing Kernel Hilbert Spaces via Cross-Learning
Published in IEEE transactions on signal processing (2021)“…Reinforcement learning is a framework to optimize an agent's policy using rewards that are revealed by the system as a response to an action. In its standard…”
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Learning Safety Critics via a Non-Contractive Binary Bellman Operator
Published in 2023 57th Asilomar Conference on Signals, Systems, and Computers (29-10-2023)“…The inability to naturally enforce safety in Reinforcement Learning (RL), with limited failures, is a core challenge impeding its use in real-world…”
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Conference Proceeding -
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Distributed Spectrum Sensing for Cognitive Radio Networks by Exploiting Sparsity
Published in IEEE transactions on signal processing (01-03-2010)“…A cooperative approach to the sensing task of wireless cognitive radio (CR) networks is introduced based on a basis expansion model of the power spectral…”
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Spline-based spectrum cartography for cognitive radios
Published in 2009 Conference Record of the Forty-Third Asilomar Conference on Signals, Systems and Computers (01-11-2009)“…A cooperative approach to the sensing task of wireless cognitive radio (CR) networks is introduced based on a spatial model of the power spectrum density…”
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Conference Proceeding -
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A Networked Multiagent System for Mobile Wireless Infrastructure on Demand
Published in IEEE transactions on robotics (2024)“…Despite the prevalence of wireless connectivity in urban areas around the globe, there remain numerous and diverse situations where connectivity is…”
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Multi-task Supervised Learning via Cross-learning
Published in 2021 29th European Signal Processing Conference (EUSIPCO) (23-08-2021)“…In this paper we consider a problem known as multi-task learning, consisting of fitting a set of classifier or regression functions intended for solving…”
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Conference Proceeding -
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Combined learning and optimal power flow for storage dispatch in grids with renewables
Published in 2024 IEEE Power & Energy Society Innovative Smart Grid Technologies Conference (ISGT) (19-02-2024)“…We propose an optimization and learning technique for controlling energy storage in power systems with renewables. A reinforcement learning (RL) approach is…”
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Conference Proceeding -
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Control of networked systems in the graph-frequency domain
Published in 2017 51st Asilomar Conference on Signals, Systems, and Computers (01-10-2017)“…This paper studies the stability and control of networked systems from the perspective of the new field of signal processing over graphs. Specifically, we…”
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Conference Proceeding