Polish and Russian/Project description

Commitment

The list of all commits: https://apertium.projectjj.com/gsoc2016/maryszmary.html

Monolingual Polish package: https://svn.code.sf.net/p/apertium/svn/languages/apertium-pol/

Monolingual Russian package: https://svn.code.sf.net/p/apertium/svn/languages/apertium-rus/

Bilingual Polish-Russian package: https://svn.code.sf.net/p/apertium/svn/incubator/apertium-pol-rus/

Project description

Description of the main package components

Monolingual and bilingual dictionaries

Constraint grammar and transfer rules

Corpora and language data

The corpora which were used for testing are the Russian National Corpus and Polish wikinews corpus.

Auxiliary scripts

For the purposes of the project a number of scripts were written (the link for the directory with the scripts described in this section is provided).

The following scripts were especially helpful:

• A number of scripts for adding new words to the bilingual dictionary
• A script for defining adding new words to the Polish morphological dictionary
• A script for extracting verbs from Zalizniak's dictionary

Statistics

At first, the goal of the project was to achieve 90% coverage of corpora used. It turned out to be a challenging task for three months of work, partly because of the peculiarities of Slavic morphology and morphophonology and the lack of available bilingual electronic dictionaries (and poverty of the latter). As a result, starting from the end of July our main task was to lowering the number of mistakes than on achieving high coverage.

Coverage	Polish → Russian (%)	Russian → Polish (%)
Trimmed coverage	85.1%	83.8%
Coverage	Russian (%)	Polish (%)
Raw coverage	94.2%	87.6%

The number of lemmas in bilingual dictionary: 48,836.

The number of lemmas in Polish dictionary: 10,023.