For the K-means clustering algorithm, the quality of clusters can be evaluated by IV and EV. In the following figure blue points belong to Cluster A and red points belong to Cluster B If you results include square root 2, you can use sql[2) to represent it. If your results include square root 3, you can use sqri(3) to represent it. If you results include square root 5, you can use sql(5) to represent it. 6 5 Cluster A Cluster B W 2 0 1 2 3 4 5 6 7 8 9 10 Controld of cluster A is Controld of cluster B is The IV is The EV is