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  3. Linear Classifiers in Python

Exercise

KNN classification

In this exercise you'll explore a subset of the Large Movie Review Dataset. The variables X_train, X_test, y_train, and y_test are already loaded into the environment. The X variables contain features based on the words in the movie reviews, and the y variables contain labels for whether the review sentiment is positive (+1) or negative (-1).

This course touches on a lot of concepts you may have forgotten, so if you ever need a quick refresher, download the scikit-learn Cheat Sheet and keep it handy!

Instructions

100 XP
  • Create a KNN model with default hyperparameters.
  • Fit the model.
  • Print out the prediction for the test example 0.