Wiki Edits 2.0

A collection of scripts for automatic extraction of edited sentences from text edition histories, such as Wikipedia revisions. It was used to create the WikEd Error Corpus --- a corpus of corrective Wikipedia edits published in:

@inproceedings{wiked2014,
    author = {Roman Grundkiewicz and Marcin Junczys-Dowmunt},
    title = {The WikEd Error Corpus: A Corpus of Corrective Wikipedia Edits and its Application to Grammatical Error Correction},
    booktitle = {Advances in Natural Language Processing -- Lecture Notes in Computer Science},
    editor = {Adam Przepiórkowski and Maciej Ogrodniczuk},
    publisher = {Springer},
    year = {2014},
    volume = {8686},
    pages = {478--490},
    url = {http://emjotde.github.io/publications/pdf/mjd.poltal2014.draft.pdf}
}

WikEd Error Corpus

The corpus has been prepared for two languages:

• English: wiked-v1.0.en.tgz, 4.2 GB
• English, cleaned & preprocessed: wiked-v1.0.en.prepro.tgz, 2.0 GB
• Polish: wiked-v1.0.pl.tgz, 301 MB

The repository also includes format conversion scripts for WikEd. The scripts work independently from Wiki Edits and can be found in the bin directory.

Requirements

This is a new version of Wiki Edits and it is not compatible with the old version! Back to commit 163d771 if you need old scripts.

This package is tested on Ubuntu with Python 2.7.

Required python packages:

• nltk with NLTK data punkt, see: http://www.nltk.org/
• Levenshtein, see: https://pypi.python.org/pypi/python-Levenshtein/

Optional packages:

• pyyaml, see: http://pyyaml.org/
• joblib, see: https://pypi.python.org/pypi/joblib
• nose, see: https://nose.readthedocs.org/en/latest/

Run tests by typing nosetests from main directory.

Installation

Installation of all requirements is possible via Makefile if you have pip already installed:

sudo apt-get install python-pip
sudo make all

Usage

To extract edits from parallel texts:

./bin/txt_edits.py tests/data/lorem_ipsum.old.txt tests/data/lorem_ipsum.new.txt

And from a Wikipedia dump file:

zcat tests/data/enwiki-20140102.tiny.xml.gz | ./bin/wiki_edits.py

The last script extracts edits from a list of dump files or URLs:

./bin/collect_wiki_edits.py -w /path/to/work/dir dumplist.txt

Language-specific options

All scripts are mostly language-independent. A few components need to be updated to run the scripts for non-English languages:

• model for NLTK punkt tokenizer, see: https://github.com/nltk/nltk_data/tree/gh-pages
• regular expressions for filtering reverted revisions in file: wikiedits/wiki/__init__.py
• list of supported languages in file: wikiedits/__init__.py

Currently supported languages: English, Polish, German.