Machine Learning in Action 8.3分
读书笔记 2 Classifying with k-Nearest Neighbors
Gimo

###This chapter covers - The knn algorithm - Parsing and import data from file - Creating scatter plots wiht Matplotlib - Normalizing Movie, classified into Romance and Action, with numbers of kick and kiss. ###For every point in our dataset: - calculate the distance between inX and the current point - sort the distance in increasing order - take k items with lowest distances to inX - find the majority class among these items - return the majority class as our prediction for class of inX

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