3 papers
eess.SP2020
Dynamic Regret Analysis for Online Tracking of Time-varying Structural Equation Model Topologies
Bakht Zaman, Luis Miguel Lopez Ramos, Baltasar Beferull-Lozano
Identifying dependencies among variables in a complex system is an important problem in network science. Structural equation models (SEM) have been used widely in many fields for t…
eess.SP2019
Online Topology Identification from Vector Autoregressive Time Series
Bakht Zaman, Luis Miguel Lopez Ramos, Daniel Romero +1
Causality graphs are routinely estimated in social sciences, natural sciences, and engineering due to their capacity to efficiently represent the spatiotemporal structure of multiv…
eess.SP2018
Location-free Spectrum Cartography
Yves Teganya, Daniel Romero, Luis Miguel Lopez Ramos +1
Spectrum cartography constructs maps of metrics such as channel gain or received signal power across a geographic area of interest using spatially distributed sensor measurements.…