Can you explain what a CNN is and where it might be used?

A Convolutional Neural Network (CNN) is a type of deep learning model designed for processing grid-like data, such as images. It uses convolutional layers to automatically and adaptively learn spatial hierarchies of features from input images. CNNs are commonly used in:

* Image and Video Recognition: Identifying objects, faces, or activities.
* Medical Image Analysis: Detecting diseases or abnormalities in X-rays or MRIs.
* Autonomous Vehicles: Recognizing road signs, pedestrians, and other vehicles.
* Visual Search Engines: Matching and searching for images based on content.