The following slides introduce the K-nearest neighbor (kNN) algorithm.
 Slide 9.ⓐ: K-nearest neighbors (reference)
Slide 9.1: K-nearest neighbor (kNN) algorithm
Slide 9.2: K-nearest neighbor (kNN) algorithm (cont.) (video: 4:42 minutes)
Slide 9.3: How K‐nearest neighbor (kNN) algorithm works?
Slide 9.4: How K-nearest neighbor (kNN) algorithm works? (cont.)
Slide 9.5: A kNN numerical example (hand computation)
Slide 9.6: A kNN numerical example (cont.)
Slide 9.7: A kNN example for extrapolation, prediction, and forecasting
Slide 9.8: A kNN example for interpolation and smoothing
Slide 9.9: A kNN example for interpolation and smoothing (cont.)
Slide 9.10: How do we use the spreadsheet for kNN?
Slide 9.11: Strengths and weaknesses of kNN
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