Which of the following statements are true for a design matrix...

Home / Computer Science / Machine Learning / Question

Examveda

Which of the following statements are true for a design matrix X ∈ Rn×d with d > n? (The rows are n sample points and the columns represent d features.)

A. least-squares linear regression computes the weights w = (xtx)-1 xty

B. the sample points are linearly separable

C. x has exactly d - n eigenvectors with eigenvalue zero

D. at least one principal component direction is orthogonal to a hyperplane that contains all the sample points

Answer: Option D

This Question Belongs to Computer Science >> Machine Learning

Related Questions on Machine Learning

A. training based on historical data

B. prediction to answer a query

C. both A and B

D. automization of complex tasks

View Answer

A. scalable

B. accuracy

C. fast

D. all of the above

View Answer

A. machine learning model

B. machine learning algorithm

C. null

D. accuracy

View Answer

A. data mining.

B. artificial intelligence

C. big data computing

D. internet of things

View Answer