I am unable to solve this Let Q q1 22 23 24 (5) be a set of queries, A A1, A2, A3, A4 A5) be a set of attributes, and S S1, S2, S3 be a set of sites The matrix of (Figure a) describes the attribute usage values and the matrix of (Figure b) gives the application access frequencies Assume that ref (w) 2 for all gk and Si and that Al is the key attribute Use the bond energy and vertical partitioning algorithms to obtain a vertical fragmentation of the set of attributes in A 1 A, A A AA S, S S 91 1 0 94 15 10 1 92 1 1 1 0 1 92 5 010 93 1 0 0 1 1 93 0 0 20 94 o 0 1 0 94 0 10 0 95 1 1 1 0 0 95 0 15 0 (a) (b) Let Q q1 22 23 24 (5) be a set of queries, A A1, A2, A3, A4 A5) be a set of attributes, and S S1, S2, S3 be a set of sites The matrix of (Figure a) describes the attribute usage values and the matrix of (Figure b) gives the application access frequencies Assume that ref (w) 2 for all gk and Si and that Al is the key attribute Use the bond energy and vertical partitioning algorithms to obtain a vertical fragmentation of the set of attributes in A 1 A, A A AA S, S S 91 1 0 94 15 10 1 92 1 1 1 0 1 92 5 010 93 1 0 0 1 1 93 0 0 20 94 o 0 1 0 94 0 10 0 95 1 1 1 0 0 95 0 15 0 (a) (b)

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I am unable to solve this  Let Q    q1  22  23  24  (5) be a set of queries, A    A1, A2, A3, A4  A5) be a set of attributes, and S  S1, S2, S3  be a set of sites  The matrix of (Figure a) describes the attribute usage values and the matrix of (Figure b) gives the application access frequencies  Assume that ref (w)   2 for all gk and Si and that Al is the key attribute  Use the bond energy and vertical partitioning algorithms to obtain a vertical fragmentation of the set of attributes in A  1 A, A A AA   S, S S 91 1 0 94 15 10 1 92 1 1 1 0 1 92 5 010 93 1 0 0 1 1 93 0 0 20 94 o 0 1 0 94 0 10 0 95 1 1 1 0 0 95 0 15 0 (a) (b) Let Q    q1  22  23  24  (5) be a set of queries, A    A1, A2, A3, A4  A5) be a set of attributes, and S  S1, S2, S3  be a set of sites  The matrix of (Figure a) describes the attribute usage values and the matrix of (Figure b) gives the application access frequencies  Assume that ref (w)   2 for all gk and Si and that Al is the key attribute  Use the bond energy and vertical partitioning algorithms to obtain a vertical fragmentation of the set of attributes in A  1 A, A A AA   S, S S 91 1 0 94 15 10 1 92 1 1 1 0 1 92 5 010 93 1 0 0 1 1 93 0 0 20 94 o 0 1 0 94 0 10 0 95 1 1 1 0 0 95 0 15 0 (a) (b)

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I am unable to solve this. Let Q = {q1; 22; 23; 24; (5) be a set of queries, A = {A1, A2, A3, A4;

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