12 lines
762 B
Markdown
12 lines
762 B
Markdown
## Digit recognition with knn
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Here's some example Matlab code that shows KNN in action to guess handwritten digits. Here's what the output looks like:
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Each row represents a guess. The last column contains the image that we're trying to guess the digit for. The first three columns show the 3 nearest neighbors for that last image.
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Images with boxes around them represent images that we did not guess correctly. You can see KNN works pretty well -- with just 500 comparison images we are getting 80% accuracy. This jumps to 90% with 5000 comparison images (see the images/ directory).
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[Uses the MNIST dataset](http://yann.lecun.com/exdb/mnist/)
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