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jok3333 [9.3K]
3 years ago
10

Given the following adjacency matrix, what is the approximate rank vector after one iteration of the power iteration method (use

PageRank model with beta=1)?
a) [5/18, 5/18, 4/9]'
b) [1, 0, 0]'
c) [1, 2, 3]'
d) [1/2, 1/3, 0]'
Computers and Technology
1 answer:
ValentinkaMS [17]3 years ago
8 0

Note: The matrix referred to in the question is: M = \left[\begin{array}{ccc}1/2&1/3&0\\1/2&1/3&0\\0&1/3&1\end{array}\right]

Answer:

a) [5/18, 5/18, 4/9]'

Explanation:

The adjacency matrix is  M = \left[\begin{array}{ccc}1/2&1/3&0\\1/2&1/3&0\\0&1/3&1\end{array}\right]

To start the power iteration, let us start with an initial non zero approximation,

X_o = \left[\begin{array}{ccc}1\\1\\1\end{array}\right]

To get the rank vector for the first Iteration:

X_1 = MX_0

X_1 =  \left[\begin{array}{ccc}1/2&1/3&0\\1/2&1/3&0\\0&1/3&1\end{array}\right]\left[\begin{array}{ccc}1\\1\\1\end{array}\right] \\\\X_1 = \left[\begin{array}{ccc}5/6\\5/6\\4/3\end{array}\right]\\

Multiplying the above matrix by 1/3

X_1 = \left[\begin{array}{ccc}5/18\\5/18\\4/9\end{array}\right]

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Answer:

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4 years ago
How do I write a program in Pascal that finds the index of the minimum number of an array(using Function) and replaces it to a n
nordsb [41]

Answer:

program arraysminfinder;

procedure minreplace();

var

no: array [1..10] of integer;  (*no is an array of integers, 10 in all *)

a: integer= 0;

i: integer= 0;

c: integer= 0;

k: integer=0;

N: integer=0;

begin

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for a := 1 to 10 do

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for a := 1 to 10 do

begin

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begin

end.

Explanation:

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procedure replacenum():integer;

Begin

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5 0
4 years ago
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barxatty [35]

Answer:

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3 0
4 years ago
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6 0
3 years ago
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