How Does Hidden Markov Models Explained in 120 Seconds! (Simple & Visual) Work?

Imagine you're trying to guess what game your friend is playing just by listening to them laugh, that's like how Hidden Markov Models work!

You can't see what they’re doing, but you can hear their laughter and figure out if they're jumping, running, or hiding. In this case, the game they're playing is the hidden part, and their laughter is the observable clue.

Think of it like a secret game where someone is moving around in a room (like a toy car), but you can only see the lights on top of it, red for fast, blue for slow. You don’t know what they’re doing, just the light colors. That’s how Hidden Markov Models work too!

Let's say your friend is playing with their toys and sometimes jumps, sometimes runs, and sometimes hides, each action has a different sound. You can't see them, but you hear those sounds.

• If they jump, you hear a big laugh.
• If they run, it’s a quick giggle.
• If they hide, it's a quiet whisper.

By listening to the pattern of laughs and giggles, you can guess what toy action is happening, just like Hidden Markov Models use clues to figure out hidden actions!