K-nearest neighbour Classifier- Cross validation

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dopedmind 2013-1-10

评论： PIRC 2023-8-30

Hi, I am working of classifiers. My problem is as follow:

train_labels = Nx1; train_data = NxD;

test_ labels = Mx1; test_data = MxD;

where, M>>N;

I am using Knn classifier and I have to find the classification accuracy by k-fold cross-validation. Any help?

PIRC 2023-8-30

which is helpful for identify the optimal K value and avoid overfitting, underfitting issues

Tom Lane 2013-1-11

This example illustrates k-fold cross validation for knn classification:

However, you ordinarily wouldn't divide your data into train/test sets if you were going to use cross-validation.

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