Imagine you have a bunch of pictures (let’s say cat photos) that you want to teach your computer how to recognize. You feed these images through the machine, but it can’t figure out which ones are cats and which aren’t. That’s where deep learning comes in!
Deep learning is like giving your computer a brain. It uses artificial neural networks (which mimic the structure of our own brains) to learn from data and make predictions based on that knowledge. In this case, we want it to recognize cats. So you feed it lots of cat photos along with some non-cat photos for comparison.
The machine starts by looking at the first image in your dataset (let’s call it “image 1”). It breaks down that picture into smaller pieces called pixels and assigns each pixel a number based on its color (red, green or blue). These numbers are then fed through a series of layers within the neural network.
The first layer is like a filter it looks for patterns in the data by comparing adjacent pixels to see if they’re similar or not. If there’s a pattern that matches what we know cats look like (like furry ears and whiskers), then that part of the image gets highlighted as important. This process continues through multiple layers, each one building on top of the last until the final output is produced in this case, whether or not the picture contains a cat.
Now let’s say you have another set of images (let’s call them “image 2”) that are similar to your first batch but with some differences. Maybe they have different backgrounds or angles, but still contain cats. When you feed these new images through the neural network, it will use what it learned from the previous dataset and apply those same patterns to this one. This is called transfer learning essentially, reusing knowledge that has already been acquired in order to learn something new.
Deep learning is like giving your computer a brain so it can recognize cats (or any other object) based on the data you feed it. It’s pretty cool stuff!