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Discuss the role of the objective function in Hyperopt and how its design impacts the hyperparameter tuning process. Provide an example of how you would define an objective function for a classification task that prioritizes accuracy and recall.
A
The objective function in Hyperopt is only used to initialize the search and does not impact the tuning process.
B
The design of the objective function directly influences the hyperparameter tuning process, as it defines the criteria for evaluating each trial's performance. For a classification task prioritizing accuracy and recall, the objective function should combine these metrics into a single score to guide the search.
C
The objective function should only focus on accuracy to ensure the best performance.
D
The objective function is not necessary when using Hyperopt for hyperparameter tuning.