2 papers
math.CO2025
Complex non-backtracking matrix for directed graphs
Keishi Sando, Hideitsu Hino
Graph representation matrices are essential tools in graph data analysis. Recently, Hermitian adjacency matrices have been proposed to investigate directed graph structures. Previo…
stat.ML2020
Modal Principal Component Analysis
Keishi Sando, Hideitsu Hino
Principal component analysis (PCA) is a widely used method for data processing, such as for dimension reduction and visualization. Standard PCA is known to be sensitive to outliers…