## k nearest neighbor search, without brute force

k nearest neighbor search can be time consuming with brute force, how can we do better?

k nearest neighbor search can be time consuming with brute force, how can we do better?

Now we know what a good causal model look like, the next question is, how to build one?

We all know that correlation does not imply causation. While we can observe correlations, how can we go about study causations?

How similar is my top greatest movies of all time list to yours?

Hello World, again!