60 citations · 87 across the 19 of their papers we have counts for
6 papers · 1 filter
Online Topology Inference from Streaming Stationary Graph Signals with Partial Connectivity Information
Rasoul Shafipour, Gonzalo Mateos
We develop online graph learning algorithms from streaming network data. Our goal is to track the (possibly) time-varying network topology, and effect memory and computational savi…
A Novel Scheme for Support Identification and Iterative Sampling of Bandlimited Graph Signals
Abolfazl Hashemi, Rasoul Shafipour, Haris Vikalo +1
We study the problem of sampling and reconstruction of bandlimited graph signals where the objective is to select a node subset of prescribed cardinality that ensures interpolation…
Towards Accelerated Greedy Sampling and Reconstruction of Bandlimited Graph Signals
Abolfazl Hashemi, Rasoul Shafipour, Haris Vikalo +1
We study the problem of sampling and reconstructing spectrally sparse graph signals where the objective is to select a subset of nodes of prespecified cardinality that ensures inte…
A Directed Graph Fourier Transform with Spread Frequency Components
Rasoul Shafipour, Ali Khodabakhsh, Gonzalo Mateos +1
We study the problem of constructing a graph Fourier transform (GFT) for directed graphs (digraphs), which decomposes graph signals into different modes of variation with respect t…
Blind Identification of Invertible Graph Filters with Multiple Sparse Inputs
Chang Ye, Rasoul Shafipour, Gonzalo Mateos
This paper deals with problem of blind identification of a graph filter and its sparse input signal, thus broadening the scope of classical blind deconvolution of temporal and spat…
Identifying the Topology of Undirected Networks from Diffused Non-stationary Graph Signals
Rasoul Shafipour, Santiago Segarra, Antonio G. Marques +1
We address the problem of inferring an undirected graph from nodal observations, which are modeled as non-stationary graph signals generated by local diffusion dynamics that depend…