2 citations · 2 across the 2 of their papers we have counts for
2 papers
eess.SP2024
Frequency analysis and filter design for directed graphs with polar decomposition
Semin Kwak, Laura Shimabukuro, Antonio Ortega
In this study, we challenge the traditional approach of frequency analysis on directed graphs, which typically relies on a single measure of signal variation such as total variatio…
eess.SP2023★ 2 cited
Signal Variation Metrics and Graph Fourier Transforms for Directed Graphs
Laura Shimabukuro, Antonio Ortega
In this paper we consider the problem of constructing graph Fourier transforms (GFTs) for directed graphs (digraphs), with a focus on developing multiple GFT designs that can captu…