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In modern era, it is easy to sell, buy and work with other people through internet. But others against it. Do you think this is positive trend or negative trend.

In modern era, it is easy to sell, buy and work with other people through internet. But others against it. Do you think this is positive trend or negative trend. PVk9J
In parametric approach is a two step process and first a function form is assumed. Whereas no assumption is made in the non-parametric approach. Parametric approach reduces the problem of estimating the function to a few parameters, which simplifies the problem. Where as in non-parametric approach we try to find an estimate of the function that is very close to the actual data points as possible. The main advantage of the parametric approach is simplification of the problem from estimating the function to estimating a few set of parameters. In addition the number of observation required to estimate the function is less compared to non-parametric approach. The disadvantages with parametric approach is there is a possibility that the model chosen to estimate f is different from the actual true form of the f and this result in poor predictions. Also, trying to avoid this by choosing more flexible models might result in over fitting and increase in errors.
In parametric
You use this word too often, consider replacing it with
approach
is a
'two step' is missing a hyphen.
two step
process and
first
a
You use this word too often, consider replacing it with
function
form
is assumed
.
“Whereas” at the beginning of a sentence usually requires a 2nd clause. Maybe a comma, question or exclamation mark is missing, or the sentence is incomplete and should be joined with the following sentence.
Whereas
no assumption
is made
in the non-parametric
You use this word too often, consider replacing it with
approach
. Parametric
You use this word too often, consider replacing it with
approach
This phrase/word (depending on the context) can be potentially replaced with :
reduces
the problem of estimating the
You use this word too often, consider replacing it with
function
to a few parameters, which simplifies the problem.
Did you mean "Whereas"?
Where as
in non-parametric
You use this word too often, consider replacing it with
approach
we try to find an estimate of the
You use this word too often, consider replacing it with
function
that is
This phrase/word is too simple and can be replaced with:
very
close to the actual data points as possible.

The main advantage of the parametric
You use this word too often, consider replacing it with
approach
is simplification of the problem from estimating the
You use this word too often, consider replacing it with
function
to estimating a
Possible agreement error. The noun set seems to be countable; consider using: "few sets".
few set
of parameters. In
Did you forget a comma after a conjunctive/linking adverb?
addition
the number of observation required to estimate the
You use this word too often, consider replacing it with
function
is less compared to non-parametric approach.

The disadvantages with parametric
You use this word too often, consider replacing it with
approach
is there is a possibility that the model chosen to estimate f is
This phrase/word is too simple and can be replaced with:
different
from the actual true form of the f and this result in poor predictions.
Also
, trying to avoid this by choosing more flexible models might result in over fitting and increase in errors.

IELTS essay In modern era, it is easy to sell, buy and work with other people through internet. But others against it. Do you think this is positive trend or negative trend.

Essay
  American English
3 paragraphs
158 words
This writing has been penalized,
text can't be
less than 250 words in Task 2
and less than 150 words in Task 1
4.0
Overall Band Score
Coherence and Cohesion: 5.5
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