Have you ever developed with AI from scratch?

Experience in development from scratch using AI includes creating architecture, selecting models, and integrating with business logic. For example, when developing a recommendation system in Java, you can use machine learning libraries such as Deeplearning4j or integrate models via REST API.

An example of a simple REST controller in Spring Boot that accepts data and returns a prediction from an AI model:

@RestController
public class PredictionController {

    @PostMapping("/predict")
    public PredictionResult predict(@RequestBody InputData data) {
        // Call to AI model here
        double prediction = aiModel.predict(data);
        return new PredictionResult(prediction);
    }
}

It is important to consider data preparation stages, model training, testing, and deployment to production.