Q.no 41. Cost complexity pruning algorithm is used in?
A : CART
B : C4.5
C : ID3
D : ALL
Answer for Question No 41. is a
Q.no 42. In one of the frequent itemset example, it is observed that if tea and milk are bought then sugar is also purchased by customers. After, generating an association rule among the given set of items, it is inferred:
A : {Tea} is antecedent and {sugar} is consequent
B : {Tea} is antecedent and the itemset {milk, sugar} is consequent
C : The itemset {Tea, milk} is consequent and {sugar} is antecedent
D : The itemset { Tea, milk} is antecedent and {sugar} is consequent
Answer for Question No 42. is d
Q.no 43. When do we use Manhattan distance in data mining?
A : Dimension of the data decreases
B : Dimension of the data increases
C : Underfitting
D : Moderate size of the dimensions
Answer for Question No 43. is b
Q.no 44. Ordinal attribute has three distinct values such as Fair, Good, and Excellent.
If x and y are two objects of ordinal attribute with Fair and Good values
respectively, then what is the distance from object y to x?
A : 1
B : 0
C : 0.5
D : 0.75
Answer for Question No 44. is c
Q.no 45. Which of the following operation is requird to calculate cosine similarity?
A : Vector dot product
B : Exponent
C : Modulus
D : Percentage
Answer for Question No 45. is a
Q.no 46. Which is the most well known association rule algorithm and is used in most commercial products.
A : Apriori algorithm
B : Pincer-search algorithm
C : Distributed algorithm
D : Partition algorithm
Answer for Question No 46. is a
Q.no 47. What is the another name of Supremum distance?
A : Wighted Euclidean distance
B : City Block distance
C : Chebyshev distance
D : Euclidean distance
Answer for Question No 47. is c
Q.no 48. a model predicts 50 examples belonging to the minority class, 45 of which
are true positives and five of which are false positives. Precision of model is
A : Precision= 0.90
B : Precision= 0.79
C : Precision= 0.45
D : Precision= 0.68
Answer for Question No 48. is a
Q.no 49. How the bayesian network can be used to answer any query?
A : Full distribution
B : Joint distribution
C : Partial distribution
D : All of the mentioned
Answer for Question No 49. is b
Q.no 50. A sub-database which consists of set of prefix paths in the FP-tree co occuring with the sufix pattern is called as
A : Suffix path
B : FP-tree
C : Prefix path
D : Condition pattern base
Answer for Question No 50. is d
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