Photo OCR
One popular approach: Slide Windows
Two things are recommended: 1.Plot Learning Curves. 2.Get 10x Data Set which actually takes much less time than we expect.
Ceiling Analysis
When there’s a pipeline with several segments, to avoid spending time in useless work, we can use this Ceiling Analysis： For each parts, suppose they have 100% accuracy, then figure out the overall output’s accuracy. Finally, to compare them with each other, and you can find which part worth your work best.
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