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Recent questions tagged Data-science
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Data-science
0
votes
Q: What is the difference between data analytics and data science?
asked
Nov 27
in
Data Science
by
DavidAnderson
data-science
0
votes
Q: What is the term Data Science?
asked
Nov 27
in
Data Science
by
DavidAnderson
data-science
0
votes
Q: Provide a simple example of how an experimental design can help answer a question about behavior
asked
May 29
in
Data Science
by
Robindeniel
experimental-data
data-science
probability
0
votes
Q: Explain selection bias (with regard to a dataset, not variable selection).
asked
May 29
in
Data Science
by
Robindeniel
data-science
selection-bias
probability
0
votes
Q: Explain what a long-tailed distribution is and provide three examples of relevant phenomena that have long tails.
asked
May 29
in
Data Science
by
Robindeniel
data-science
probability
0
votes
Q: How do you assess the statistical significance of an insight?
asked
May 29
in
Data Science
by
Robindeniel
statistical-significance
data-science
0
votes
Q: You are about to get on a plane to London, you want to know whether you have to bring an umbrella or not
asked
May 29
in
Data Science
by
Robindeniel
data-science
data-probability
0
votes
Q: How can you tell if a given coin is biased?
asked
May 29
in
Data Science
by
Robindeniel
data-science
data-probability
0
votes
Q: You are at a Casino and have two dices to play with
asked
May 29
in
Data Science
by
Robindeniel
data-science
data-probability
0
votes
Q: A box has 12 red cards and 12 black cards. Another box has 24 red cards and 24 black cards.
asked
May 29
in
Data Science
by
Robindeniel
data-science
probability
+1
vote
Q: Difference between convex and non-convex cost function; what does it mean when a cost function is non-convex?
asked
May 28
in
Data Science
by
sharadyadav1986
data
data-science
probability
data-probability
convex
non-convex
+1
vote
Q: What is overfitting?
asked
May 28
in
Data Science
by
sharadyadav1986
overfitting
data-science
data-overfitting
+1
vote
Q: Is it beneficial to perform dimensionality reduction before fitting an SVM? Why or why not?
asked
May 28
in
Data Science
by
sharadyadav1986
svm
data-science
svm-fitting
+1
vote
Q: What is a random forest? Why is it good?
asked
May 28
in
Data Science
by
sharadyadav1986
random-forest
data-science
data-random-forest
+1
vote
Q: What is a decision tree?
asked
May 28
in
Data Science
by
sharadyadav1986
decision-tree
data-science
data-decision-tree
+1
vote
Q: What is collinearity and what to do with it? How to remove multicollinearity?
asked
May 28
in
Data Science
by
sharadyadav1986
collinearity
multicollinearity
data-science
+1
vote
Q: What are the assumptions required for linear regression? What if some of these assumptions are violated?
asked
May 28
in
Data Science
by
sharadyadav1986
linear-regression
assumptions
data-science
+1
vote
Q: Why is mean square error a bad measure of model performance? What would you suggest instead?
asked
May 28
in
Data Science
by
sharadyadav1986
model-performance
data-science
square-error
+1
vote
Q: Do you think 50 small decision trees are better than a large one? Why?
asked
May 28
in
Data Science
by
sharadyadav1986
decision-tree
data-science
data-decision-tree
+1
vote
Q: Why is dimension reduction important?
asked
May 27
in
Data Science
by
sharadyadav1986
reduction
dimension-reduction
data-science
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