22 citations · 44 across the 17 of their papers we have counts for
11 papers · 1 filter
Channel Gain Cartography via Mixture of Experts
Luis M. Lopez-Ramos, Yves Teganya, Baltasar Beferull-Lozano +1
In order to estimate the channel gain (CG) between the locations of an arbitrary transceiver pair across a geographic area of interest, CG maps can be constructed from spatially di…
Online Joint Topology Identification and Signal Estimation from Streams with Missing Data
Bakht Zaman, Luis Miguel Lopez Ramos, Baltasar Beferull-Lozano
Identifying the topology underlying a set of time series is useful for tasks such as prediction, denoising, and data completion. Vector autoregressive (VAR) model-based topologies…
Fast Decentralized Linear Functions Over Edge Fluctuating Graphs
Siavash Mollaebrahim, Baltasar Beferull-Lozano
Implementing linear transformations is a key task in the decentralized signal processing framework, which performs learning tasks on data sets distributed over multi-node networks.…
Fast Graph Filters for Decentralized Subspace Projection
Daniel Romero, Siavash Mollaebrahim, Baltasar Beferull-Lozano +1
A number of inference problems with sensor networks involve projecting a measured signal onto a given subspace. In existing decentralized approaches, sensors communicate with their…
Quantization Analysis and Robust Design for Distributed Graph Filters
Leila Ben Saad, Baltasar Beferull-Lozano, Elvin Isufi
Distributed graph filters have found applications in wireless sensor networks (WSNs) to solve distributed tasks such as consensus, signal denoising, and reconstruction. However, wh…
Online Hyperparameter Search Interleaved with Proximal Parameter Updates
Luis Miguel Lopez-Ramos, Baltasar Beferull-Lozano
There is a clear need for efficient algorithms to tune hyperparameters for statistical learning schemes, since the commonly applied search methods (such as grid search with N-fold…