reorg and add code for second edition

2023-08-09 08:20:19 -05:00
parent 9306432a1b
commit 933acafaf3
89 changed files with 18 additions and 117 deletions
--- a/12_knn/README.md
+++ b/12_knn/README.md
@@ -0,0 +1,11 @@
+## Digit recognition with knn
+
+Here's some example Matlab code that shows KNN in action to guess handwritten digits. Here's what the output looks like:
+
+![](https://github.com/egonSchiele/grokking_algorithms/blob/master/10_knn/images/17_correct_500_comparisons.png)
+
+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.
+
+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).
+
+[Uses the MNIST dataset](http://yann.lecun.com/exdb/mnist/)