The model that we develop in artificial intelligence.What is its purpose,and what training data is relevant to it.
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Model means you can say a Prototype we make regarding to our task.
As we first train our model on some observed or you can say bench-marked data ; called as TRaining phase of model.
Then we apply that model to our problem (test data) you can say in order to evaluate how much well you have trained your model. Training data we use related to our task or use bench marked data for any model of AI. hope you find this answer useful .
