Geohash mapper from: https://github.com/neerubhai/geohash_heatmapper.git

Rederivation of PredPol model from: https://github.com/arun-ramamurthy/pred-pol

Code for the visualizations of the simplicial complexes is from the R documentation for the TDA package:

• Alpha: https://rdrr.io/cran/TDA/man/alphaComplexFiltration.html
• Rips: https://rdrr.io/cran/TDA/man/ripsFiltration.html