Data Science Quiz Quiz Data Science Expert Quiz 9 Pradip Devkar October 9, 2024 These questions are designed to test deep knowledge of data science, spanning machine learning, model evaluation, and advanced concepts. Data Science Expert Quiz 9 These questions are designed to test deep knowledge of data science, spanning machine learning, model evaluation, and advanced concepts. 1 / 10 In time series forecasting, which of the following is used to model seasonal variation? Moving Average Differencing Autoregressive Component Fourier Series 2 / 10 In a Random Forest, how is the decision of each individual tree determined? Majority voting across the trees Averaging the predictions of all trees Taking the median of predictions Weighted average based on tree accuracy 3 / 10 Which loss function is commonly used in logistic regression? Mean Squared Error Hinge Loss Cross-Entropy Loss Huber Loss 4 / 10 What is the key difference between L1 and L2 regularization? L1 produces sparse models, L2 does not L2 reduces bias, L1 reduces variance L1 applies to classification, L2 to regression L1 penalizes large coefficients, L2 does not 5 / 10 In PCA (Principal Component Analysis), the principal components are determined by maximizing which of the following? Covariance Variance Eigenvalues Dot product 6 / 10 Which of the following algorithms does NOT belong to unsupervised learning? K-Means DBSCAN Apriori Random Forest 7 / 10 What does the term “curse of dimensionality” refer to in machine learning? Difficulty in interpreting high-dimensional data Increase in model complexity with more features Decrease in model performance as the number of features increases Computational expense with more training data 8 / 10 Which evaluation metric is most appropriate for imbalanced classification problems? Accuracy Precision Recall F1-Score 9 / 10 In gradient boosting, which technique is used to reduce overfitting? Dropout Pruning Shrinkage (Learning Rate) Bagging 10 / 10 Which of the following is NOT an assumption of linear regression? Linearity Homoscedasticity Multicollinearity Independence of errors Your score isThe average score is 0% 0% Restart quiz Share this… Whatsapp Linkedin Facebook Twitter Gmail Related Tags: #Data Science Quiz, Quia Continue Reading Previous Data Science Advanced Quiz 8Next NLP Basics Quiz 2 More Stories Databases Quiz Quiz Databases Medium-level quiz 6 Pradip Devkar October 15, 2024 Databases Quiz Quiz Databases Medium-Level Quiz 5 Pradip Devkar October 13, 2024 Databases Quiz Quiz Databases Medium-Level Quiz 4 Pradip Devkar October 13, 2024 Leave a Reply Cancel replyYou must be logged in to post a comment.
