2.6k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Instituto Superior TécnicoPT388 papers
- Centro de Física Teórica de Partículas54 papers
- University of ViennaAT37 papers
- Centre National de la Recherche ScientifiqueFR34 papers
- University of LisbonPT34 papers
- University of MississippiUS31 papers
- Universitat de ValènciaES27 papers
- California Institute of TechnologyUS25 papers
- University of CoimbraPT19 papers
- European Organization for Nuclear ResearchCH18 papers
- Instituto de TelecomunicaçõesPT18 papers
- Instituto Politécnico de LisboaPT17 papers
9 papers · 1 filter
An efficient Lagrangian-based heuristic to solve a multi-objective sustainable supply chain problem
Camila P. S. Tautenhain, Ana Paula Barbosa-Povoa, Bruna Mota +1
Sustainable Supply Chain (SSC) management aims at integrating economic, environmental and social goals to assist in the long-term planning of a company and its supply chains. There…
Robust Collaborative Nonnegative Matrix Factorization For Hyperspectral Unmixing (R-CoNMF)
Jun Li, Jose M. Bioucas-Dias, Antonio Plaza +1
The recently introduced collaborative nonnegative matrix factorization (CoNMF) algorithm was conceived to simultaneously estimate the number of endmembers, the mixing matrix, and t…
Distributed Optimization With Local Domains: Applications in MPC and Network Flows
João F. C. Mota, João M. F. Xavier, Pedro M. Q. Aguiar +1
In this paper we consider a network with nodes, where each node has exclusive access to a local cost function. Our contribution is a communication-efficient distributed algorit…
D-ADMM: A Communication-Efficient Distributed Algorithm For Separable Optimization
João F. C. Mota, João M. F. Xavier, Pedro M. Q. Aguiar +1
We propose a distributed algorithm, named Distributed Alternating Direction Method of Multipliers (D-ADMM), for solving separable optimization problems in networks of interconnecte…
Robust Simultaneous Localization of Nodes and Targets in Sensor Networks Using Range-Only Measurements
Pınar Oğuz-Ekim, João Gomes, João Xavier +1
Simultaneous localization and tracking (SLAT) in sensor networks aims to determine the positions of sensor nodes and a moving target in a network, given incomplete and inaccurate r…
Distributed Basis Pursuit
João F. C. Mota, João M. F. Xavier, Pedro M. Q. Aguiar +1
We propose a distributed algorithm for solving the optimization problem Basis Pursuit (BP). BP finds the least L1-norm solution of the underdetermined linear system Ax = b and is u…
A Fast Algorithm for the Constrained Formulation of Compressive Image Reconstruction and Other Linear Inverse Problems
Manya V. Afonso, Jose M. Bioucas-Dias, Mario A. T. Figueiredo
Ill-posed linear inverse problems (ILIP), such as restoration and reconstruction, are a core topic of signal/image processing. A standard approach to deal with ILIP uses a constrai…
Fast Frame-Based Image Deconvolution Using Variable Splitting and Constrained Optimization
Mario A. T. Figueiredo, Jose M. Bioucas-Dias, Manya V. Afonso
We propose a new fast algorithm for solving one of the standard formulations of frame-based image deconvolution: an unconstrained optimization problem, involving an data-f…
A Variable Splitting Augmented Lagrangian Approach to Linear Spectral Unmixing
Jose Bioucas-Dias
This paper presents a new linear hyperspectral unmixing method of the minimum volume class, termed \emph{simplex identification via split augmented Lagrangian} (SISAL). Following C…