What is diffusion in the context of AI?

In the context of AI, diffusion refers to a type of model or process where information (such as the state or parameters of a model) is spread or "diffused" over time. This can be used to model a variety of phenomena, such as the spread of information through a social network, or the evolution of a system over time.

How are diffusion models used in AI?

Diffusion models are used in AI in several ways. They can be used to model the dynamics of complex systems, such as social networks or biological systems. They can also be used in machine learning algorithms, such as in diffusion decision models, which model the process of decision making as a diffusion process.

More recently, diffusion models have been used in generative modeling, where they are used to generate new samples from a learned distribution.

What are the advantages and limitations of diffusion models?

Diffusion models can capture complex dynamics and dependencies, making them powerful tools for modeling and prediction. However, they can also be computationally intensive and may require large amounts of data to train. Furthermore, they may be difficult to interpret, particularly for high-dimensional data.