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2023 Dec24: IIT M FN EXAM FDD2 - 24 Dec 2023

MLT End Term18 questions100 marks8 MSQ · 6 SA · 4 MCQforenoon
Elapsed 00:00
Q1MSQ5 marksselect all that apply
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Comprehension passage - the questions below it refer to this
Based on the above data, answer the given subquestions. question figure
Q2MCQ5 marks
Suppose the team applies linear PCA on the dataset and reconstructs the data points with zero error using k principal components (directions). For which value of k the reconstruction error would become zero?
  1. 1
  2. 2
  3. 3
  4. 5
  5. 10
  6. 100
Q3MSQ6 marksselect all that apply
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Q4SA5 marks
(Enter your answer correctly to two decimal places) question figure
Q5SA6 marks
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Q6MSQ6 marksselect all that apply
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Q7MCQ6 marks
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  1. [2, 6, 9, 12]
  2. [2, 4, 7, 10]
  3. [3, 5, 8, 11]
  4. [1, 3, 6, 8]
Q8SA6 marks
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Q9MCQ5 marks
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  1. 0
  2. 1
  3. Insufficient information to make a prediction.
Q10MCQ5 marks
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  1. Yes, it will converge.
  2. No, it will never converge.
  3. Insufficient data
Q11SA6 marks
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Comprehension passage - the questions below it refer to this
Based on the above data, answer the given subquestions. question figure
Q12MSQ6 marksselect all that apply
What is the equation of the decision boundary? Select all options that are correct.
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Q13SA5 marks
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Q14MSQ6 marksselect all that apply
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Q15MSQ6 marksselect all that apply
Which of the following statements are correct?
  1. Overfitting models have high bias and low variance.
  2. Underfitting models have low bias and high variance.
  3. Generally, weak learners in the random forest tend to overfit.
  4. If the performance of each estimator in the bagging algorithm is almostidentical, the benefit of using bagging to combine them may be minimal or insignificant.
  5. In random forests, multiple decision trees (estimators) are trainedsimultaneously, allowing for parallel processing and faster model training.
Q16MSQ5 marksselect all that apply
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  1. Model 4 tends to overfit.
  2. Model 4 tends to underfit.
  3. Model 1 tends to underfit.
  4. Model 1 tends to overfit.
Q17MSQ5 marksselect all that apply
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Q18SA6 marks
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Answer key

  1. Q1 (MSQ, 5 marks): A, D
  2. Q2 (MCQ, 5 marks): C
  3. Q3 (MSQ, 6 marks): A, B
  4. Q4 (SA, 5 marks): 43.10 to 43.20
  5. Q5 (SA, 6 marks): 0.32 to 0.38
  6. Q6 (MSQ, 6 marks): A, D, E
  7. Q7 (MCQ, 6 marks): D
  8. Q8 (SA, 6 marks): 12
  9. Q9 (MCQ, 5 marks): C
  10. Q10 (MCQ, 5 marks): B
  11. Q11 (SA, 6 marks): 1
  12. Q12 (MSQ, 6 marks): A, C
  13. Q13 (SA, 5 marks): 5.32 to 5.44
  14. Q14 (MSQ, 6 marks): A, D
  15. Q15 (MSQ, 6 marks): C, D, E
  16. Q16 (MSQ, 5 marks): B, D
  17. Q17 (MSQ, 5 marks): A, C, D
  18. Q18 (SA, 6 marks): 4081