Computer Networking: A Top-Down Approach (7th Edition)
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN: 9780133594140
Author: James Kurose, Keith Ross
Publisher: PEARSON
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In class, we have defined the hypothesis for univariate linear regression as
he(x) = 00 + 0₁x
and the mean-square cost function as
2
J(00,01)
Σ (ho(x²) - y(i)) ²
2m
i=1
We define the following terms:
m
`x), y= 10.
;Σy"), xy = - ²
x(1) y(i) x²:
(x(1)) ²
m
a. Show that the optimal values of the learning parameters 00 and 0₁ are given by:
00 = y-x
xy−xy
x²-x²
01
=
ху-ху
x²-x²
b. What is the advantage of expressing the learning parameters in this format?
=
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Transcribed Image Text:In class, we have defined the hypothesis for univariate linear regression as he(x) = 00 + 0₁x and the mean-square cost function as 2 J(00,01) Σ (ho(x²) - y(i)) ² 2m i=1 We define the following terms: m `x), y= 10. ;Σy"), xy = - ² x(1) y(i) x²: (x(1)) ² m a. Show that the optimal values of the learning parameters 00 and 0₁ are given by: 00 = y-x xy−xy x²-x² 01 = ху-ху x²-x² b. What is the advantage of expressing the learning parameters in this format? =
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