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In PCA, we obtain z E RK from x E R" as follows: (u(1) )" --- --- -- u(1) u(2) u(k) ... | --- --- Which of the following is a correct expression for z;? Oa. = (uの)『xk Ob. 3= (uの)"x Z; = (u(®))"x O d. 3= (uの)x

In PCA, we obtain z E RK from x E R" as follows: (u(1) )" --- --- -- u(1) u(2) u(k) ... | --- --- Which of the following is a correct expression for z;? Oa. = (uの)『xk Ob. 3= (uの)"x Z; = (u(®))"x O d. 3= (uの)x

Database System Concepts
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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In PCA, we obtain z E RK from x E R" as follows: (2() )" --- --- z=| u(1) u(2) --- --- u(k) ... --- -- Which of the following is a correct expression for z;? Oa. Z; = (u0)"xx Ob. z; = (u))"x; Oc. Z; = (u®))"x O d. Z; = (u))"x
Transcribed Image Text:In PCA, we obtain z E RK from x E R" as follows: (2() )" --- --- z=| u(1) u(2) --- --- u(k) ... --- -- Which of the following is a correct expression for z;? Oa. Z; = (u0)"xx Ob. z; = (u))"x; Oc. Z; = (u®))"x O d. Z; = (u))"x
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