Analysis of Spatial and Spatiotemporal Anomalies Using Persistent Homology: Case Studies with COVID-19 Data∗ Abigail Hickok, Deanna Needell, Mason A. Porter Journal article | SIAM Journal On Mathematics of Data Science DOI: https://doi.org/10.1137/21M1435033 Analysis of Spatial and Spatiotemporal Anomalies Using Persistent Homology: Case Studies with COVID-19 Data∗ Almetric badge Social media impact badge provided by Altmetric