Research Article
Detection of Touchscreen-Based Urdu Braille Characters Using Machine Learning Techniques
Figure 5
ROC to predict Urdu Braille characters. (a) ROC curve for category-1 (ﺫ - ﺍ) using KNN. (b) ROC curve for category-2 (ﻒ - ﺮ) using KNN. (c) ROC curve for category-3 (ے - ﻕ) using KNN.
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