Machine learning inference is the process of using a machine learning model to make predictions on new data. It is the second phase of the machine learning lifecycle, after training.
Here is a simple analogy to help you understand machine learning inference:
Imagine you are teaching a child to recognize different types of animals. You start by showing them pictures of dogs, cats, and birds. The child learns the features of each type of animal, such as the shape of their ears, the color of their fur, and the way they move.
Once the child has learned these features, you can show them a new picture of an animal and ask them to identify it. This is like machine learning inference. You are feeding new data (the picture of the animal) into a trained model (the child’s knowledge of animals) and asking it to make a prediction (the type of animal).
Machine learning inference is used in a wide variety of applications, such as:
- Fraud detection: Machine learning models can be used to identify fraudulent transactions by analyzing patterns in financial data.
- Medical diagnosis: Machine learning models can be used to help doctors diagnose diseases by analyzing medical images and patient data.
- Recommendation systems: Machine learning models can be used to recommend products, movies, and other content to users based on their past behavior.
- Self-driving cars: Machine learning models are used to help self-driving cars navigate the road and avoid obstacles.
Here is a more concrete example of machine learning inference:
Suppose you have trained a machine learning model to predict whether a customer is likely to churn (cancel their subscription). You can then use this model to infer the churn risk of new customers by feeding their data into the model. This information can then be used to target customers with offers or other interventions to reduce their churn risk.
Machine learning inference is a powerful tool that can be used to make predictions on new data in a variety of applications. It is an essential part of the machine learning lifecycle and is used by businesses and organizations all over the world.