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. 2024 Jan 31;10:e1704. doi: 10.7717/peerj-cs.1704

Table 5. Normalization results achieved by proposed rules and regular expressions.

Dataset Correct changes Incorrect changes Remained changes
Biology 1,922 12 0
Physics 2,213 3 0
Chemistry 1,798 22 0
Urdu literature 2,079 27 0
Social studies 1,548 40 0
Combined dataset 9,560 104 0