louis925/kaggle-digit-recognizer

Kaggle - Digit Recognizer with ANN

Digit Recognizer

This repository contains the code to solve Kaggle contest "digit recognizer".
Using neural network and PCA dimension reduction.

Contributors

Chen-Hsi (Sky) Huang (github.com/skyhuang1208)
Louis Yang (github.com/louis925)

Achievement

An 98.071% accuracy was achieved (verified by kaggle).

How it works

1. Read in training data and testing data (42000, 28000 for this contest).
2. (Optional) Using PCA dimension reduction to reduce data size (use size with 95% explained variance).
3. (a) Tuning parameters (layers, neurons, learning rate, tolerance, etc.)
4. (b) Train feed-forward artificial neural network using training data.
5. Output predictions on digits for testing data set.

How to Use

First enter parameters on the top of digit_recognizer.py Use Python3 to execute digit_recognizer.py such as: python3 digit_recognizer.py