Machine Learning – Classification

Tthere's a input x, like sentence from review, a classified MODEL that generates the output, y. The predicted class, like positive or negative reviews. Personalized medical diagnosis: input of indicators like temperature, x-ray analysis, medical tests, for a disease classifier model, that predicts healthy, cold, flu, pneumonia etc. And the last, the application for reading minds, with brain images that, applied to a model classifier it is possible to discover which image is seeing by the person.