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Answers by sharadyadav1986
0
votes
What are the assumptions required for linear regression? What if some of these assumptions are violated?
answered
May 28, 2021
in
Data Science
linear-regression
assumptions
data-science
0
votes
Why is mean square error a bad measure of model performance? What would you suggest instead?
answered
May 28, 2021
in
Data Science
model-performance
data-science
square-error
+1
vote
Do you think 50 small decision trees are better than a large one? Why?
answered
May 28, 2021
in
Data Science
decision-tree
data-science
data-decision-tree
0
votes
What are the drawbacks of a linear model?
answered
May 28, 2021
in
Data Science
linear-model
linear-model-drawbacks
disadvantages-linear-model
0
votes
Why is Naive Bayes so bad? How would you improve a spam detection algorithm that uses naive Bayes?
answered
May 28, 2021
in
Data Science
naive-bayes
algorithm
data-science-algorithm
0
votes
What is principal component analysis? Explain the sort of problems you would use PCA for.
answered
May 28, 2021
in
Data Science
component-analysis
principal-component
0
votes
Why is dimension reduction important?
answered
May 27, 2021
in
Data Science
reduction
dimension-reduction
data-science
0
votes
When would you use random forests Vs SVM and why?
answered
May 27, 2021
in
Data Science
random-forest
svm
data-science
0
votes
What does NLP stand for?
answered
May 27, 2021
in
Data Science
nlp
data-science
data-nlp
0
votes
Assume you need to generate a predictive model using multiple regression. Explain how you intend to validate this model
answered
May 27, 2021
in
Data Science
predictive-model
regression
0
votes
What is the difference between supervised learning and unsupervised learning? Give concrete examples
answered
May 27, 2021
in
Data Science
supervised-learning
unsupervised-learning
0
votes
Explain what a false positive and a false negative are. Why is it important these from each other?
answered
May 27, 2021
in
Data Science
data-science
false-negative
0
votes
Explain what precision and recall are
answered
May 27, 2021
in
Data Science
precision
recall
0
votes
How to define/select metrics?
answered
May 27, 2021
in
Data Science
define-metrics
select-metrics
data-metrics
0
votes
What is cross-validation?
answered
May 27, 2021
in
Data Science
cross-validation
data-science
data-validation
0
votes
What is Neural Network Fundamentals
answered
May 27, 2021
in
Data Science
neural-network-fundamentals
network
neural-network
0
votes
Describe different regularization methods, such as L1 and L2 regularization?
answered
May 27, 2021
in
Data Science
l1-regularization
l2-regularization
regularization-methods
0
votes
What is the difference between a box plot and a histogram?
answered
May 27, 2021
in
Data Science
box-plot-vs-histogram
histogram
box-plot
0
votes
How to deal with unbalanced binary classification?
answered
May 27, 2021
in
Data Science
unbalanced-binary-classification
binary-classification
0
votes
What are some of the steps for data wrangling and data cleaning before applying machine learning algorithms?
answered
May 27, 2021
in
Data Science
data-wangling
machine-learning-algoithm
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