Q. What are support vectors?

  • (A) all the examples that have a non-zero weight αk in a svm
  • (B) 1, 2 and 3
  • (C) all of the above
  • (D) none of the above
πŸ’¬ Discuss
βœ… Correct Answer: (C) all of the above

Q. Which of the following can act as possible termination conditions in K-Means?
1. For a fixed number of iterations.
2. Assignment of observations to clusters does not change between iterations. Except for cases with a bad local minimum.
3. Centroids do not change between successive iterations.
4. Terminate when RSS falls below a threshold.

  • (A) 1, 3 and 4
  • (B) root node
  • (C) 1, 2 and 4
  • (D) 1,2,3,4
πŸ’¬ Discuss
βœ… Correct Answer: (D) 1,2,3,4

Q. True or False: Ensembles will yield bad results when there is significant diversity among the models. Note: All individual models have meaningful and good predictions.

  • (A) TRUE
  • (B) 1 and 3
  • (C) ---
  • (D) ---
πŸ’¬ Discuss
βœ… Correct Answer: (B) 1 and 3

Q. Which of the following is / are true about weak learners used in ensemble model?
1. They have low variance and they don't usually overfit
2. They have high bias, so they can not solve hard learning problems
3. They have high variance and they don't usually overfit

  • (A) 1 and 2
  • (B) Gini Index
  • (C) 2 and 3
  • (D) none of these
πŸ’¬ Discuss
βœ… Correct Answer: (A) 1 and 2

Q. According to . . . . . . . . , it's a key success factor for the survival and evolution of all species.

  • (A) Claude Shannon's theory
  • (B) inclusive
  • (C) Darwin's theory
  • (D) None of above
πŸ’¬ Discuss
βœ… Correct Answer: (C) Darwin's theory

Q. In a Rule based classifier, If there is a rule for each combination of attribute values, what do you called that rule set R

  • (A) exhaustive
  • (B) market-basket analysis
  • (C) comprehensive
  • (D) mutually exclusive
πŸ’¬ Discuss
βœ… Correct Answer: (A) exhaustive

Q. Which of the following classifications would best suit the student performance classification systems?

  • (A) if...then... analysis
  • (B) it is used for prediction.
  • (C) regression analysis
  • (D) cluster analysis
πŸ’¬ Discuss
βœ… Correct Answer: (A) if...then... analysis

Q. Which of the following sentence is FALSE regarding regression?

  • (A) it relates inputs to outputs.
  • (B) y is true when x is known to be true.
  • (C) it may be used for interpretation.
  • (D) it discovers causal relationships.
πŸ’¬ Discuss
βœ… Correct Answer: (D) it discovers causal relationships.

Q. Given a rule of the form IF X THEN Y, rule confidence is defined as the conditional probability that Select one:

  • (A) y is false when x is known to be false.
  • (B) hidden
  • (C) x is true when y is known to be true
  • (D) x is false when y is known to be false.
πŸ’¬ Discuss
βœ… Correct Answer: (B) hidden

Q. Database query is used to uncover this type of knowledge.

  • (A) deep
  • (B) feature
  • (C) shallow
  • (D) multidimensional
πŸ’¬ Discuss
βœ… Correct Answer: (D) multidimensional