
Chapter 8
Quiz
•
Computers
•
University
•
Practice Problem
•
Medium
Aiman Dolah
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20 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is unsupervised learning?
Learning from labeled data
Learning with human supervision
Learning patterns from unlabeled data
Learning from test data only
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following is a common task in unsupervised learning?
Regression
Clustering
Classification
Prediction
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does clustering try to do?
Separate data into random groups
Group similar data points together
Assign labels to data
Predict future values
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which algorithm is commonly used for clustering?
K-Means
Naive Bayes
Decision Tree
Logistic Regression
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is dimensionality reduction?
Adding features to a dataset
Reducing the number of data points
Reducing the number of features or variables
Deleting the dataset
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of these is NOT an example of unsupervised learning?
Customer segmentation
Document clustering
Classification of emails as spam or not spam
Anomaly detection
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following is a challenge in unsupervised learning?
Too many labels
Lack of ground truth for evaluation
Overfitting
Training too quickly
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