ANN with MNIST


By Prof. Seungchul Lee
http://iai.postech.ac.kr/
Industrial AI Lab at POSTECH

Table of Contents

1. What's an MNIST?ΒΆ

From Wikipedia

  • The MNIST database (Mixed National Institute of Standards and Technology database) is a large database of handwritten digits that is commonly used for training various image processing systems. The database is also widely used for training and testing in the field of machine learning. It was created by "re-mixing" the samples from NIST's original datasets. The creators felt that since NIST's training dataset was taken from American Census Bureau employees, while the testing dataset was taken from American high school students, NIST's complete dataset was too hard.
  • MNIST (Mixed National Institute of Standards and Technology database) database
    • Handwritten digit database
    • $28 \times 28$ gray scaled image
    • Flattened matrix into a vector of $28 \times 28 = 784$