Artificial Intelligence
Machine learning model
A mathematical structure used to produce predictions or content from inputs, with numerical settings shaped by training on data.
Simple example
The structure that takes an image of a digit and predicts which digit it shows is the model. The images used for learning are the training data.
Why does it matter?
A model is not the whole application that uses it. The same model can serve different applications. Producing a result for a new image does not, by itself, mean it has been trained again. Its results can be wrong.