ELI5: Explain Like I'm 5

K-means algorithm

K-means is a machine learning algorithm that can help people group similar things together. It is like when you want to organize toys and put them in different groups or piles. You look at the toys and decide what toys go into what group. K-means does the same thing but with data instead of toys. It looks at the data points and groups them together in a way that each group has data points that are similar to each other.