Tamil OCR Conversion from Digital Writing Pad Recognition Accuracy Improves through Modified Deep Learning Architectures

Table 4

Evaluation of the classifier’s performance through statistical measures based on the dialect.

Dialect	Accuracy		Precision		Recall		F1 score
	MMU-SNet (%)	RTSBA (%)	MMU-SNet (%)	RTSBA (%)	MMU-SNet (%)	RTSBA (%)	MMU-SNet (%)	RTSBA (%)
Madurai Tamil	83.9	85.9	96.1	99.2	86.2	86.3	90.9	92.3
Tirunelveli Tamil	87.1	89.7	96.3	98.5	89.6	90.7	92.8	94.5
Coimbatore Tamil	90.3	92.3	96.4	99.3	93.2	92.8	94.8	95.9
Thanjavur Tamil	93.5	95.5	98.6	99.3	94.7	96.1	96.6	97.6

RTSBA, ResNet two-stage bottleneck architecture; MMU-SNet, modified multi-scale segmentation network.