41. In model evaluation, what is the term for the process of assessing a model's performance using a separate, held-out dataset that was not used during training or validation? A. Data Sampling B. Data Cleaning C. Model Validation D. Data Transformation Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option C No explanation is given for this question Let's Discuss on Board
42. What is the primary purpose of a learning rate decay in training deep neural networks? A. To adjust the learning rate based on model performance B. To increase the model's complexity C. To optimize the loss function D. To reduce the number of layers in the network Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option A No explanation is given for this question Let's Discuss on Board
43. Which evaluation metric is commonly used for binary classification models and measures the ability to correctly classify negative instances? A. Specificity B. Precision C. F1 Score D. ROC-AUC Score Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option A No explanation is given for this question Let's Discuss on Board
44. What does the term "bias-variance trade-off" refer to in the context of model evaluation and validation? A. The balance between underfitting and overfitting B. The balance between training time and model complexity C. The balance between model performance and dataset size D. The balance between precision and recall Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option A No explanation is given for this question Let's Discuss on Board
45. In model evaluation, what is the primary goal of stratified sampling when creating train and test sets? A. To prevent overfitting B. To ensure equal representation of classes C. To reduce the size of the training dataset D. To increase the model's complexity Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option B No explanation is given for this question Let's Discuss on Board
