Multivariate split is where the partitioning of tuples is based on a combination of attributes rather than on a single attribute.
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MLE estimates are often undesirable because
A. they are biased
B. they have high variance
C. they are not consistent estimators
D. none of the above
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A database has 5 transactions. Of these, 4 transactions include milk and bread. Further, of the given 4 transactions, 2 transactions include cheese. Find the support percentage for the following association rule "if milk and bread are purchased, then cheese is also purchased".
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True or False: In boosting, individual base learners can be parallel.
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What is gini index?
A. it is a type of index structure
B. it is a measure of purity
C. both a and b
D. none of the options
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Common deep learning applications include . . . . . . . .
A. Image classification, Real-time visual tracking
B. Autonomous car driving, Logistic optimization
C. Bioinformatics, Speech recognition
D. All above
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How does the bias-variance decomposition of a ridge regression estimator compare with that of ordinary least squares regression?
A. ridge has larger bias, larger variance
B. ridge has smaller bias, larger variance
C. ridge has larger bias, smaller variance
D. ridge has smaller bias, smaller variance
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What is the precision value for following confusion matrix of binary classification?
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Classification problems are distinguished from estimation problems in that
A. classification problems require the output attribute to be numeric.
B. classification problems require the output attribute to be categorical.
C. classification problems do not allow an output attribute.
D. classification problems are designed to predict future outcome.
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How will you counter over-fitting in decision tree?
A. by pruning the longer rules
B. by creating new rules
C. both by pruning the longer rules' and ' by creating new rules'
D. over-fitting is not possible
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What is the final resultant cluster size in Divisive algorithm, which is one of the hierarchical clustering approaches?
A. zero
B. three
C. singleton
D. two
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The adjusted multiple coefficient of determination accounts for
A. the number of dependent variables in the model
B. the number of independent variables in the model
C. unusually large predictors
D. none of the above
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What is the sequence of the following tasks in a perceptron? Initialize weights of perceptron randomly Go to the next batch of dataset If the prediction does not match the output, change the weights For a sample input, compute an output
A. 1, 4, 3, 2
B. 3, 1, 2, 4
C. 4, 3, 2, 1
D. 1, 2, 3, 4
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Which of the following selects only a subset of features belonging to a certain percentile
A. selectpercentile
B. featurehasher
C. selectkbest
D. all above
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Suppose you are using a Linear SVM classifier with 2 class classification problem. Now you have been given the following data in which some points are circled red that are representing support vectors.If you remove the following any one red points from the data. Does the decision boundary will change?
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PCA can be used for projecting and visualizing data in lower dimensions.
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Which of the following is a common use of unsupervised clustering?
A. detect outliers
B. determine a best set of input attributes for supervised learning
C. evaluate the likely performance of a supervised learner model
D. determine if meaningful relationships can be found in a dataset
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Which of the following is true about SVM? 1. Kernel function map low dimensional data to high dimensional space. 2. It is a similarity Function
A. 1 is true, 2 is false
B. 1 is false, 2 is true
C. 1 is true, 2 is true
D. 1 is false, 2 is false
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How the entries in the full joint probability distribution can be calculated?
A. using variables
B. using information
C. both using variables & information
D. none of the mentioned
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What is the standard approach to supervised learning?
A. split the set of example into the training set and the test
B. group the set of example into the training set and the test
C. a set of observed instances tries to induce a general rule
D. learns programs from data
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