apertium2ud 0.0.8

Converting universal tags to Apertium tags.

apertium2ud

Obtaining the mapping between the two tagsets based on the information from Apertium Wiki.

Loosely based on this code, hence the GPLv3 license.

To install, run

python -m pip install apertium2ud

The latest uploaded version is 0.0.8.

NB! The latest version from PyPI (yes, you can install the tool via pip) is equipped with the apertium-kir .udx file rules.

To build the machine-readable mapping, run

python apertium_wiki_parser.py

Apertium to Universal tags

>>> from apertium2ud.convert import a2ud
>>> tags = ["n", "pl", "acc"]
>>> a2ud(tags)
(['NOUN'], ['Number=Plur', 'Case=Acc'])
>>> tags_sophisticated = ["v", "tv", "ger", "nom", "cop", "aor", "p3", "pl"]
>>> a2ud(tags_sophisticated)
(['VERB', 'AUX'], ['Subcat=Tran', 'VerbForm=Vnoun', 'Case=Nom', 'Tense=Past', 'Person=3', 'Number=Plur'])

Universal tags to Apertium

So far the conversion is far from perfect

Кыз NOUN {'Number[psor]=Sing', 'Number=Sing', 'Case=Nom', 'Person[psor]=3', 'Person=3'} ->
<px3sg><n><subj?nom?><sg><p3><px3sp> 

досуна NOUN {'Number[psor]=Sing', 'Number=Sing', 'Person[psor]=3', 'Case=Dat', 'Person=3'} ->
<px3sg><n><sg><dat><p3><px3sp> 

кат NOUN {'Case=Nom', 'Person=3', 'Number=Sing'} ->
<n><subj?nom?><sg><p3> 

жазган VERB {'Aspect=Perf', 'Polarity=Pos', 'Number=Sing', 'Tense=Past', 'Person=3', 'Evident=Fh'} ->
<past3p><vblex?v?vbmod?><sg><aff><aor?past?pret?><perf><p3> 

. PUNCT set() ->
<sent?apos?percent?clb?punct?> 

TODO

• Should sections chunks and XML tags be added? No.
• Tests: Apertium -> UD -> Apertium, UD -> Apertium -> UD (sometimes losses are inevitable)
• Add the possibility to add the rules based on a .udx file, which usually describes custom tags

How to cite

Greatly appreciated, if you use this work.

@misc{apertium2ud2023alekseev,
  title     = {{alexeyev/apertium2ud: mapping tagsets}},
  year      = {2023},
  url       = {https://github.com/alexeyev/apertium2ud}
}