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Showing posts from January, 2019

Correct A Math Test with Deep Learning - Part I

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100-Masu 100-Masu (or 100-Math) is a popular math test for primary school student in Japan. It's just only a combination of one digit addition, multiplication, and division in 100 squares table. As you can see, the math test has a table that include 100 cells where students write their answers. Any cell that is left empty or with a wrong answer is to be counted towards the total number of mistakes and the tally is marked on the test sheet. The important in practicing 100-math calculations test is also in Prof. Hideo Kageyama's book: To do everyday Recording everyday With about 30 students in class, the teacher must spent so much time  everyday  to manually  correct these tests. So it's worth to implement a automatically correction. The Approach Our target is building a mobile app that can capture test sheet image, identify the multipliers in each table, identify the numbers written in the answer cells, compare against the expected answers, and