A model that learns the “more real” direction and builds samples step by step.
A score-based model is like a GPS for TV static. It keeps saying, “less snow, more puppy.”
It starts with random noise, then moves toward a real-looking image or sound. This idea powers many diffusion models.
Generative Model
A score-based model is a kind of Generative Model that learns to make samples.
Diffusion
Diffusion often uses scores to explain and guide sampling.
DDPM
DDPM can be seen as a step-by-step score-based model.
Energy-Based Model
Both models care about the shape and slope of the data pattern.