Package: wikt2dict
wikt2dictWiktionary translation parser tool for many language editions.Wikt2dict parses only the translation sections.
It also has a triangulation mode which combines the extracted translation pairs to
generate new ones.NewsWikt2dict changed completely, hope for the better. If you would like to keep using the old one:https://github.com/juditacs/wikt2dict/tree/a08cc896c22dc78db62e1b790c3ec157d00ad08fChanged interface. See below for details (April 2014)Added support for German Wiktionary (Aug 2013)Had a poster at the Building and Using Comparable Corpora Workshop (BUCC) at ACL13, updated Bibtex accordinglyThe paper is available here:http://www.aclweb.org/anthology-new/W/W13/W13-2507.pdfAll dictionaries are available here:http://nessie.nytud.hu/dictMigration from Python2.7 to Python3.8. (November 2021)Python Package Index (PyPI) is created (December 2022)RequirementsWikt2dict should run on any mainstream Linux distribution. It needs Python3.8 and basic command line
tools that should be found on most Linux distributions (wget, bzcat).
If you're working with large Wiktionaries such as the English Wiktionary, you need at least 10GB of
free space, preferrably more.
For all Wiktionary editions supported, you need about 35GB of free space.For the sake of simplicity a full conda virtual environment is provided ( via configswikt2dict_env.ymlorwikt2dict_env.yml2),
where all the necessary dependencies are installed.To take advantage of this environment, please use (Ana/mini)Conda distribution of the Python.Installationgit clone https://github.com/HMRLKE/wikt2dict.git
conda env create --name wikt2dict --file=wikt2dict_env.yml 
sudo pip install -e .Note that this way wikt2dict can only be used once the virtualenv was activated.
You need to runconda activate wikt2dictevery time you aim to use wikt2dict in this environment.Very quick startWikt2dict's basic functionalities can be accessed using the w2d.py script (which should be directly callable after running pip install).$ w2d.py -h
Wikt2DictUsage:
w2d.py (download|extract|triangulate|all) (--wikicodes=file|...)Options:
-h --help              Show this screen.
--version              Show version.
-w, --wikicodes=file   File containing a list of wikicodes.W2d.py currently supports 3+1 actions. All actions need a list of Wiktionary codes to work with.
You can either list the codes manually or provide them in a file (--wikicodes option).The actions are:download: download the Wiktionary dumps. Convert them from XML to plaintext with a special page separator.
The files are saved in the directory called /dat/wiktionary/<language_name> at the current location from where the script is started.extract: extract translations.
The translations are saved to the file /<current_location>/dat/wiktionary/<language_name>/translation_pairs.triangulate: use triangulation to generate more translations.
Triangles are saved to the directory /<current_location>/dat/triangle in separate files
named as <wc1>_<wc2>_<wc3>. This file would contain pairs in wc1-wc3 languages triangulated via wc2.
For more information on triangulation, see:http://aclweb.org/anthology/W/W13/W13-2507.pdfNote that triangulation only makes sense if you specify at least 3 languages.all: do all of the above.Let's try it out on a few small Wiktionary editions.Downloading the Slovak, the Slovenian and the Occitan Wiktionaries:w2d.py download sk sl liThe downloaded and textified Wiktionaries should appear in dat/wiktionary/< language name >/<wikicode>wiktionary.txtExtracting translations:w2d.py extract sk sl liThe extracted translations should appear in dat/wiktionary/< language name >/translation_pairs.Now let's try triangulating to get a bunch of new translations:w2d.py triangulate sk sl liThe results should appear in dat/triangle/ arranged in subdirectories with a maximum of 1000 files per directory
to avoid filesystem problems.
Using only 3 such small editions for triangulating does not make much sense (it yielded 4 pairs on the April 2014 dumps).Or do all of it at once:w2d.py all sk sl liOutputThe output is a tab-separated file.
If you only want the translation pairs you should just cut the first 4 columns:cut -f1-4 <output_file> > <dictionary>Or without Wiktionary codes:cut -f2,4 <output_file> > <dictionary>Where <output_file> should be replaced by the output of either the Wiktionary extraction
or the triangulating, and  is the file where the filtered columns are saved.The columns explained in details are below.The one extracted from the Wiktionaries has the following columns:Wiktionary code 1 (language 1)Word or expression in language 1Wiktionary code 2 (language 2)Word or expression in language 2Wiktionary code of the Wiktionary from which the pair was extractedArticle from which the pair was extractedType of parser used (you probably don't need this)An example:en      dog     fr      chien   en      dog     defaultparserThe triangulating output has the following columns:Wiktionary code 1 (language 1)Word or expression in language 1Wiktionary code 2 (language 2)Word or expression in language 25-10. The articles and their source Wiktionary that were used to generate this pairhu      kutya   oc      chin    hu      kutya   el      σκύλος  oc      chinThe pairs are listed with all possible ways they were found. I provided a little script to
sort, unify and count the number of times one pair appears.
Usage (from wikt2dict base directory):cat <triangle_files_to_merge> | bash bin/merge_triangle.sh > output_fileTo use with all triangle files:cat <triangle_dir>/*/* | bash bin/merge_triangle.sh > output_filewhere the <triangle_dir> should be replaced with the directory where the individual triangle files are
stored (triangle_dir option).Congratulations, you have successfully finished the test tutorial of wikt2dict.
Please send your feedback tojudit@sch.bme.huorendre.hamerlik@fmph.uniba.sk.CitePlease cite:@InProceedings{acs-pajkossy-kornai:2013:BUCC,  
  author    = {Acs, Judit  and  Pajkossy, Katalin  and  Kornai, Andras},  
  title     = {Building basic vocabulary across 40 languages},  
  booktitle = {Proceedings of the Sixth Workshop on Building and Using Comparable Corpora},  
  month     = {August},  
  year      = {2013},  
  address   = {Sofia, Bulgaria},  
  publisher = {Association for Computational Linguistics},  
  pages     = {52--58},  
  url       = {http://www.aclweb.org/anthology/W13-2507}  
}Or this one:@InProceedings{CS14.864,
author = {Judit Ács},
title = {Pivot-based multilingual dictionary building using Wiktionary},
booktitle = {Proceedings of the Ninth International Conference on Language Resources and Evaluation (LREC'14)},
year = {2014},
month = {may},
date = {26-31},
address = {Reykjavik, Iceland},
editor = {Nicoletta Calzolari (Conference Chair) and Khalid Choukri and Thierry Declerck and Hrafn Loftsson and Bente Maegaard and Joseph Mariani and Asuncion Moreno and Jan Odijk and Stelios Piperidis},
publisher = {European Language Resources Association (ELRA)},
isbn = {978-2-9517408-8-4},
language = {english}
}Or this one:@misc{Hamerlik:2022,
author = {Endre Hamerlik, Judit Ács},
title = {Wikt2dict},
year = {2022},
publisher = {GitHub},
journal = {GitHub repository},
howpublished = {\url{https://github.com/HMRLKE/wikt3dict}}Known BugsFIXED - Lithuanian and a few other Wiktionaries have translation tables in many articles
not only for Lithuanian words and these are parsed as they were Lithuanian words.
Language detection for all articles should be added. This issue is fixed but configuration
should be updated.Logging is not always accurateUpcoming4lang coverage, finding translations for a list of wordsCheck out our basic vocabulary at:http://hlt.sztaki.hu/resources/4lang/