Spike-and-slab variable selection

Spike-and-Slab Variable Selection is like a game. There are two different types of spaces on a game board. The first type of space is called a 'spike space'. This is a space marked with a pointy picture. The second type of space is called a 'slab space'. This is a space marked with a flat picture.

In Spike-and-Slab Variable Selection, you are playing a game but instead of game pieces, you are picking variables (like numbers, shapes, or colors). The goal of the game is to figure out which variables, the spikes or the slabs, are the most important for the problem you are trying to solve. To do this, you will go through each spike and slab space and decide whether that variable is important or not. If you think the variable is important, you will mark it as a spike space. If you think the variable is not important, you will mark it as a slab space.

Once you have gone through each spike and slab space, then you can look for patterns. Patterns can help you identify which variables are most important and should be kept, and which variables are not important and should be eliminated.