The IMPACT project Polish Ground-Truth texts as a Djvu corpus

Abstract

The purpose of the paper is twofold. First, to describe the already implemented idea of DjVu corpora, i.e. corpora which consist of both scanned images and a transcription of the texts with the words associated with their occurrences in the scans. Secondly, to present a case study of a corpus consisting of almost 5 000 pages of Polish historical texts dating from 1570 to 1756 (it is practically the very first corpus of historical Polish). The tools described have universal character and are freely available under the GNU GPL license, hence they can be used also for other purposes.

The Electronic Corpus of 17th- and 18th-century Polish Texts

“…The first historical corpus of Polish is a corpus of texts from the years 1572-1756 created by the IMPACT project (Bień, 2014). It contains 1.6 million tokens and comprises DjVu format scans linked to transliterated texts.…”

“…The texts prepared in this way were subjected to transcription (standardisation). For this, it was decided to use an existing tool developed for the transcription of Polish historical texts within the IMPACT project (Bień, 2014). The tool uses a set of rewrite rules based on regular expressions.…”