Drinov Orthography for Post-OCR Correction dataset

The Drinov Orthography for Post-OCR Correction (DOPOC) dataset was created by annotating a historical newspaper collection provided by the National Library "Ivan Vazov" (NLIV) in Plovdiv, Bulgaria. We consider printed versions of these documents, which we manually annotate and align at the character level in the same format as the one from the ICDAR 2019 post-OCR correction competition.