## 2019 [Trader Classification by Cluster Analysis: Interaction between HFTs and Other Traders](https://efmaefm.org/0EFMAMEETINGS/EFMA%20ANNUAL%20MEETINGS/2019-Azores/papers/EFMA2019_0201_fullpaper.pdf)
## 2004 [Segmentation of stock trading customers according to potential value](https://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.96.9084&rep=rep1&type=pdf)
- https://en.wikipedia.org/wiki/K-means_clustering