Maurice Tutor

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  • MCS,PHD
    Argosy University/ Phoniex University/
    Nov-2005 - Oct-2011

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    Phoniex University
    Oct-2001 - Nov-2016

Category > Computer Science Posted 27 Aug 2017 My Price 7.00

disk size,

Three computers, A, B, and C, have the numerical features listed below:

We may imagine these values as defining a vector for each computer; for instance, A’s vector is [3.06, 500, 6]. We can compute the cosine distance between any two of the vectors, but if we do not scale the components, then the disk size will dominate and make differences in the other components essentially invisible. Let us use 1 as the scale factor for processor speed, α for the disk size, and β for the main memory size.

(a) In terms of α and β, compute the cosines of the angles between the vectors for each pair of the three computers.

(b) What are the angles between the vectors if α = β = 1?

(c) What are the angles between the vectors if α = 0.01 and β = 0.5?

(d) One fair way of selecting scale factors is to make each inversely proportional to the average value in its component. What would be the values of α and β, and what would be the angles between the vectors?

Answers

Maurice Tutor
(5)
Status NEW Posted 27 Aug 2017 02:08 PM My Price 7.00

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