Let Q ={q1,...,q5} be a set of queries, A ={A1,..., A5} be a set of attributes, and S ={S1,S2,S3} be a set of sites. The matrix of Fig. 2.25a describes the attribute usage values and the matrix of Fig. 2.25b gives the application access frequencies. Assume that refi(qk) =1forall qk and Si and that A1 is the key attribute. Use the bond energy and vertical partitioning algorithms to obtain a vertical fragmentation of the set of attributes in A Fill in the blanks below to give the attribute affinity matrix (AA) that you obtain as you solve Problem 2.6 in our textbook. For each blank, please enter a numeric value withoutany blank spaces.A₁A₂A3A4A5a =f =r =W =A₁-lepItXtype your answer...type your answer...type your answer...type your answer...A2aquyA3lbIf;S=IVZ; b= type your answer...type your answer...type your answer...: x= type your answer...;C=A4с; y =gr-ktype your answer...; h= type your answer...; t = type your answer...type your answer...A5dhSW; d = type your answer...; p= type your answer...;u=; Z=type your answer...type your answer...; e =type your answer...;q=type your answer...; V=type your answer...; k= type your answer... 9192939495A₁0A₂ A3 A4110111 010010 0 101 11 0(a)A511100S₁91[1092 593094095 0S₂ S32000 10355100150(b)

The answer for the above mentioned question is given in the below steps for your reference.

Answered: 91 92 93 94 95 A₁ A2 A3 A4 0 1 1 1 1 1…

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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Let Q ={q1,...,q5} be a set of queries, A ={A1,..., A5} be a set of attributes, and S ={S1,S2,S3} be a set of sites. The matrix of Fig. 2.25a describes the attribute usage values and the matrix of Fig. 2.25b gives the application access frequencies. Assume that refi(qk) =1forall qk and Si and that A1 is the key attribute. Use the bond energy and vertical partitioning algorithms to obtain a vertical fragmentation of the set of attributes in A

Fill in the blanks below to give the attribute affinity matrix (AA) that you obtain as you solve Problem 2.6 in our textbook. For each blank, please enter a numeric value without
any blank spaces.
A₁
A₂
A3
A4
A5
a =
f =
r =
W =
A₁
-
le
p
It
X
type your answer...
type your answer...
type your answer...
type your answer...
A2
a
q
u
y
A3
lb
If
;S=
IV
Z
; b= type your answer...
type your answer...
type your answer...
: x= type your answer...
;C=
A4
с
; y =
g
r
-
k
type your answer...
; h= type your answer...
; t = type your answer...
type your answer...
A5
d
h
S
W
; d = type your answer...
; p= type your answer...
;u=
; Z=
type your answer...
type your answer...
; e =
type your answer...
;q=type your answer...
; V=
type your answer...
; k= type your answer...

91
92
93
94
95
A₁
0
A₂ A3 A4
1
1
0
1
1
1 0
1
0
0
1
0 0 1
0
1 1
1 0
(a)
A5
1
1
1
0
0
S₁
91
[10
92 5
93
0
94
0
95 0
S₂ S3
20
0
0 10
35
5
10
0
15
0
(b)

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