Hello there! A discriminative model is like a game where you have to tell apart different things. Let's say you have a bag of apples and oranges, and you have to learn how to tell which fruit is which.
To do that, you look at the features of each fruit, like the color, shape, and texture. You also remember which features belong to each type of fruit. For example, you know that apples are usually round and shiny, while oranges are round but bumpy.
After you've learned these things, you can start making predictions. Someone gives you a fruit and you try to guess whether it's an apple or an orange based on the features you see.
This is how a discriminative model works. It learns from examples to tell apart different classes or categories. It looks at the features of each example, and based on how they're related to each class, it makes a prediction.
For example, if you're trying to determine if a customer will buy a product, you might use a discriminative model that looks at features like their age, income, and buying history. Based on how these are related to buying behavior, the model will predict whether or not the customer is likely to buy.
So that's a discriminative model – it's a tool that helps you tell things apart based on the features they have.