nerdexam
Databricks

DATABRICKS-CERTIFIED-PROFESSIONAL-DATA-SCIENTIST · Question #131

Select the correct statement regarding the naive Bayes classification

The correct answer is A. it only requires a small amount of training data to estimate the parameters B. Independent variables can be assumed C. only the variances of the variables for each class need to be determined. An advantage of naive Bayes is that it only requires a small amount of training data to estimate the parameters (means and variances of the variables) necessary for classification. Because independent variables are assumed, only the variances of the variables for each class…

Classification Algorithms

Question

Select the correct statement regarding the naive Bayes classification

Options

  • Ait only requires a small amount of training data to estimate the parameters
  • BIndependent variables can be assumed
  • Conly the variances of the variables for each class need to be determined
  • Dfor each class entire covariance matrix need to be determined

How the community answered

(46 responses)
  • A
    85% (39)
  • D
    15% (7)

Explanation

An advantage of naive Bayes is that it only requires a small amount of training data to estimate the parameters (means and variances of the variables) necessary for classification. Because independent variables are assumed, only the variances of the variables for each class need to be determined and not the entire covariance matrix.

Topics

#Naive Bayes#parameter estimation#conditional independence#training data

Community Discussion

No community discussion yet for this question.

Full DATABRICKS-CERTIFIED-PROFESSIONAL-DATA-SCIENTIST Practice