EXAM QUESTIONS AND CORRECT ANSWERS
(VERIFIED ANSWERS ) ALREADY GRADED
A+.Georgia Institute of Technology-Main Campus
Which of these is time series data?
A. The average cost of a house in the United States every year since 1820
B. The height of each professional basketball player in the NBA at the
start of the season
A
Which of these is structured data?
A. The contents of a person's Twitter feed
B. The amount of money in a person's bank account
B
,What is structured data?
Data that can be stores in a structured way
What is unstructured data?
Data that is not easily described and stored (e.g., written text)
A survey of 25 people recorded each person's family size and type of car.
Which of these is a data point?
A. The 14th person's family size and car type
B. The 14th person's family size
C.The car type of each person
A.
A data point is all the information about one observation
The farther the wrongly classified point is from the line ___
The bigger the mistake we've made
,The term including the margin gets larger so the importance of a large
margin out weights avoiding mistakes and classifying known data samples.
As lambda gets larger
That term also drops towards zero, so the importance of minimizing mistakes
and classifying known data points outweighs having a large margin.
As lambda drops towards zero
What can SVMs be used for
to find a classifier with maximum seperation or margin between the two
sets of points?
When to use SVM?
If it's impossible to avoid classification errors, SVM can find a classifier that
trades off reducing errors and enlarging the margin.
, Error for data point j
What does this formula describe?
Total error
What does this formula describe ?
To maximize the distance between the two lines what do we need to
minimize?
m_j > 1
What value do we give for more costly errors