1|Page
ISyE 6501 Midterm Prep With Complete Solutions
2025
What does SVM stand for? - .....ANSWER ...✔✔
Support Vector Machine
Is written text structured or unstructured? - .....ANSWER
...✔✔ Unstructured
When we increase the sum of the square of the
coefficients we... - .....ANSWER ...✔✔ Decrease the
distance between the lines
In SVM soft classifier we tradeoff between maximizing
___ and minimizing ___ - .....ANSWER ...✔✔ margin
and errors
If lambda gets small what gets emphasized, large
margin or minimizing training error?, - .....ANSWER
...✔✔ Minimizing errors.
,2|Page
What is a support vector? - .....ANSWER ...✔✔ A
point that holds up a shape.
Does ...[⅔(a-1)+1/3(a+1)] move an SVM classifier up
or down? - .....ANSWER ...✔✔ Up
How do you make errors more costly in a soft SVM
classifier? - .....ANSWER ...✔✔ include a multiplier for
the point-error term.
If an SVM coefficient is very close to zero... -
.....ANSWER ...✔✔ that term is not very important to
the classification.
What is the difference between standardization and
scaling? - .....ANSWER ...✔✔ Scaling is bounded in
range. Standardization is scaling to a normal
distribution. Standardization is the (value - factor mean)
/ (factor standard deviation)
What is the 2-norm? - .....ANSWER ...✔✔ Euclidean
distance
,3|Page
What is the 1-norm? - .....ANSWER ...✔✔ The
rectilinear (Manhattan) distance
What is the infinity norm? - .....ANSWER ...✔✔ The
value of the largest dimension
Measuring the quality of a model is called? -
.....ANSWER ...✔✔ Validation
What does a confusion matrix show? - .....ANSWER
...✔✔ The performance of a classification model.
A time series outlier that seems "off the curve" is called
a... - .....ANSWER ...✔✔ contextual outlier.
A data element that is different from all other data in a
set is called a... - .....ANSWER ...✔✔ point outlier.
When something is missing in a range of points -
.....ANSWER ...✔✔ it is called a..., collective outlier.
The whiskers on a box plot extend to... - .....ANSWER
...✔✔ the 10th and 90th percentiles (or 5th and 95th)
, 4|Page
Why are hypothesis tests generally not sufficient for
change detection? - .....ANSWER ...✔✔ They are slow
to detect changes.
In CUSUM, T is _____ and C is _____., - .....ANSWER
...✔✔ Threshold and a "bring down factor"
In a CUSUM model, you adjust T and C to manage the
tradeoff between..., - .....ANSWER ...✔✔ early
detection and false-alarms
In exponential smoothing, if the data is less random, then
you want to pick an alpha that is..., - .....ANSWER
...✔✔ Close to 1.
What is the initial condition for T in exponential
smoothing with trending? - .....ANSWER ...✔✔ T_i=0
In cyclic exponential smoothing, L represents..., -
.....ANSWER ...✔✔ The length of the cycle or season
ISyE 6501 Midterm Prep With Complete Solutions
2025
What does SVM stand for? - .....ANSWER ...✔✔
Support Vector Machine
Is written text structured or unstructured? - .....ANSWER
...✔✔ Unstructured
When we increase the sum of the square of the
coefficients we... - .....ANSWER ...✔✔ Decrease the
distance between the lines
In SVM soft classifier we tradeoff between maximizing
___ and minimizing ___ - .....ANSWER ...✔✔ margin
and errors
If lambda gets small what gets emphasized, large
margin or minimizing training error?, - .....ANSWER
...✔✔ Minimizing errors.
,2|Page
What is a support vector? - .....ANSWER ...✔✔ A
point that holds up a shape.
Does ...[⅔(a-1)+1/3(a+1)] move an SVM classifier up
or down? - .....ANSWER ...✔✔ Up
How do you make errors more costly in a soft SVM
classifier? - .....ANSWER ...✔✔ include a multiplier for
the point-error term.
If an SVM coefficient is very close to zero... -
.....ANSWER ...✔✔ that term is not very important to
the classification.
What is the difference between standardization and
scaling? - .....ANSWER ...✔✔ Scaling is bounded in
range. Standardization is scaling to a normal
distribution. Standardization is the (value - factor mean)
/ (factor standard deviation)
What is the 2-norm? - .....ANSWER ...✔✔ Euclidean
distance
,3|Page
What is the 1-norm? - .....ANSWER ...✔✔ The
rectilinear (Manhattan) distance
What is the infinity norm? - .....ANSWER ...✔✔ The
value of the largest dimension
Measuring the quality of a model is called? -
.....ANSWER ...✔✔ Validation
What does a confusion matrix show? - .....ANSWER
...✔✔ The performance of a classification model.
A time series outlier that seems "off the curve" is called
a... - .....ANSWER ...✔✔ contextual outlier.
A data element that is different from all other data in a
set is called a... - .....ANSWER ...✔✔ point outlier.
When something is missing in a range of points -
.....ANSWER ...✔✔ it is called a..., collective outlier.
The whiskers on a box plot extend to... - .....ANSWER
...✔✔ the 10th and 90th percentiles (or 5th and 95th)
, 4|Page
Why are hypothesis tests generally not sufficient for
change detection? - .....ANSWER ...✔✔ They are slow
to detect changes.
In CUSUM, T is _____ and C is _____., - .....ANSWER
...✔✔ Threshold and a "bring down factor"
In a CUSUM model, you adjust T and C to manage the
tradeoff between..., - .....ANSWER ...✔✔ early
detection and false-alarms
In exponential smoothing, if the data is less random, then
you want to pick an alpha that is..., - .....ANSWER
...✔✔ Close to 1.
What is the initial condition for T in exponential
smoothing with trending? - .....ANSWER ...✔✔ T_i=0
In cyclic exponential smoothing, L represents..., -
.....ANSWER ...✔✔ The length of the cycle or season
