Suppose we have three points in a two dimensional space: (3,1), (2,1), and (7,7). We want to perform PCA on these points, so we construct a 2-by-2 matrix whose eigenvectors are the directions that best represent these three points. Construct this matrix, as outlined in the PCA algorithm discussed in class, and identify, in the list below, one of its elements. O a) 8 O b) 9 c) 24 d) 18

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
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Chapter1: Introduction
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Suppose we have three points in a two dimensional space: (3,1), (2,1), and
(7,7). We want to perform PCA on these points, so we construct a 2-by-2
matrix whose eigenvectors are the directions that best represent these
three points.
Construct this matrix, as outlined in the PCA algorithm discussed in class,
and identify, in the list below, one of its elements.
O a) 8
O b) 9
c) 24
d) 18
Transcribed Image Text:Suppose we have three points in a two dimensional space: (3,1), (2,1), and (7,7). We want to perform PCA on these points, so we construct a 2-by-2 matrix whose eigenvectors are the directions that best represent these three points. Construct this matrix, as outlined in the PCA algorithm discussed in class, and identify, in the list below, one of its elements. O a) 8 O b) 9 c) 24 d) 18
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