Bayesian Networks, often found in the field o artificial intelligence and statistics, are like maps that show the relationships between different sets of variables using probability. Imagine a family tree, but instead of relatives, it's about how different things can influence each other. For example, a Bayesian Network could illustrate how the weather, temperature, and time of year might affect the likelihood of a person catching a cold.

Each 'note' in this network represents a variable (like weather), and the lines or 'edges' between them show how these variables are connected. What makes Bayesian Networks special is their use of probabilities to measure these connections. This means they can handle uncertain information really well, making them super useful for tasks like diagnosis in medicine, predicting weather, or even in recommendation systems like those used by streaming services to suggest movies based on your past preferences. By considering how one thing can impact another, Bayesian Networks help in making informed predictions or decisions even when not all the information is certain or complete.