2.2 Data mining approach and evaluation
We will adopt a regression approach, which preserves the order of the preferences. For instance, if the true grade is 3, then a model that predicts 4 is better than one that predicts 7. A regression dataset D is made up of k ∈ {1,...,N} examples, each mapping an input vector with I input variables (xk1 , . . . , xkI ) to a given target yk. The regression performance is commonly measured by an error metric, such
2.2 Data mining approach and evaluationWe will adopt a regression approach, which preserves the order of the preferences. For instance, if the true grade is 3, then a model that predicts 4 is better than one that predicts 7. A regression dataset D is made up of k ∈ {1,...,N} examples, each mapping an input vector with I input variables (xk1 , . . . , xkI ) to a given target yk. The regression performance is commonly measured by an error metric, such
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