Title: Quiz Ch 9
Course: Machine Learning Security - Winter WC > Section: Unit 9

Q: What algorithm was developed at Bell Labs in 1957?
- k-means
- DBSCAN
- Centroid
- Recommender
A: k-means

Q: What performance metric is used in k-means?
- Inertia
- Centroid
- Affinity
- Density
A: Inertia

Q: What algorithm speeds up learning by using the triangle inequality?
- Accelerated k-means
- Mini-batch k-means
- k-means++
- k-means
A: Accelerated k-means

Q: What algorithm fails if clusters are stretched?
- k-means
- DBSCAN
- Neither of them works
- They both work
A: k-means

Q: What algorithm uses only part of the dataset for each iteration?
- Mini-batch k-means
- k-means++
- k-means
- Accelerated k-means
A: Mini-batch k-means