Questions and Comments for: K-Nearest Neighbors Density Estimation
A slecture by student Qi Wang
Please leave me comment below if you have any questions, if you notice any errors or if you would like to discuss a topic further.
Question/comment
Review
A review by Dan Barrett:
This video slecture includes a good general description of how K Nearest Neighbors works, then goes through the proof that KNN is an unbiased density estimate, and finally talks about metrics and gives some examples.
A couple improvements I might suggest: - draw a more clear link between the example at the beginning and the discussion of metrics describing how you might use any of these metrics as the distance function in the example. - discuss the two different KNN methods described in class, and how they relate to each other.(You discuss just the second one).
