Publication: A survey of handwritten character recognition with MNIST and EMNIST
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2019-08-01
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MDPI
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Abstract
This paper summarizes the top state-of-the-art contributions reported on the MNIST dataset for handwritten digit recognition. This dataset has been extensively used to validate novel techniques in computer vision, and in recent years, many authors have explored the performance of convolutional neural networks (CNNs) and other deep learning techniques over this dataset. To the best of our knowledge, this paper is the first exhaustive and updated review of this dataset; there are some online rankings, but they are outdated, and most published papers survey only closely related works, omitting most of the literature. This paper makes a distinction between those works using some kind of data augmentation and works using the original dataset out-of-the-box. Also, works using CNNs are reported separately; as they are becoming the state-of-the-art approach for solving this problem. Nowadays, a significant amount of works have attained a test error rate smaller than 1% on this dataset; which is becoming non-challenging. By mid-2017, a new dataset was introduced: EMNIST, which involves both digits and letters, with a larger amount of data acquired from a database different than MNIST's. In this paper, EMNIST is explained and some results are surveyed.
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This article belongs to the Special Issue Computer Vision and Pattern Recognition in the Era of Deep Learning.
Keywords
Artificial intelligence, Character recognition, Computer vision, Image classification, Mnist, Survey
Bibliographic citation
Baldominos, A., Saez, Y., & Isasi, P. (2019). A survey of handwritten character recognition with MNIST and EMNIST. Applied sciences, 9(15), 3169