Which of the following statements a), b) or c) is false?
A) The following call to the KNeighborsClassifier object's fit method loads the training set's samples (X_train) and targets (y_train) into the estimator: knn.fit(X=X_train, y=y_train)
B) After the KNeighborsClassifier's fit method loads the data into the estimator, it uses that data to perform complex calculations behind the scenes that learn from the data and train the model.
C) The KNeighborsClassifier estimator is said to be xe "lazy estimator (scikit-learn)"lazy because its work is performed only when you use it to make predictions.
D) All of the above statements are true.

Question

Quizplus · Accepted Answer

The KNeighborsClassifier is considered a lazy learner because it doesn't learn a discriminative function from the training data but memorizes the training dataset instead. The "complex calculations" mentioned in option B are not performed during the fit method for this type of model. The fit method for KNeighborsClassifier essentially just stores the training dataset, and the actual computation to make predictions happens at the time of calling the predict method, based on the nearest neighbors to a point needing a prediction.

Which of the Following Statements A), B) or C) Is