Holy Trinity for Machine Learning

I want to do machine learning. How?

Machine learning systems may look very different, but under the hood, every machine learning system are made up of three essential parts.

Data

We are talking about machine learning. Without data, what’s there to learn?

Model

The task of machine learning is to have machines to make decisions for us. Without a model to do these, who will make the decision?

Loss

Whether it’s playing a game or driving a car, we want our model to perform well on a task. You have some data, and a model to make predictions based on the inputs. You need to measure how good your model is. Without loss functions, you do not know how well your model performs.