Comparisons of clustering algorithms (in astronomy contexts and elsewhere) #

I've done various bits of work on clustering algorithms over the years (including a paper comparing them applied to Gaia). This repo is intended as a central location collecting different things I've done in one place.

Cloning this repo #

Note that this repo uses submodules. If you want to clone all this repo and its constituent submodules to your local machine in one command, run

git clone --recursive https://github.com/emilyhunt/clustering_algorithm_comparison.git

Contents #

• Notebooks - various things to play around with
• hdbscan_issue_demo - A demonstration of how HDBSCAN can fail on noisy data due to various algorithm flaws (despite being a very sensitive and useful algorithm in other ways)
• nam_2022_clustering_algorithm_talk - slides and an example notebook from a talk I did at the National Astronomy Meeting 2022 at the University of Warwick. This is a nice little intro to the topic!