Revision Scoring

A generic, machine learning-based revision scoring system designed to be used to automatically differentiate damage from productive contributory behavior on Wikipedia.

Example

Using a scorer_model to score a revision:

>>> import mwapi
>>> from revscoring import ScorerModel
>>> from revscoring.extractors.api.extractor import Extractor
>>>
>>> with open("models/enwiki.damaging.linear_svc.model") as f:
...     scorer_model = ScorerModel.load(f)
...
>>> extractor = Extractor(mwapi.Session(host="https://en.wikipedia.org",
...                                        user_agent="revscoring demo"))
>>>
>>> feature_values = list(extractor.extract(123456789, scorer_model.features))
>>>
>>> print(scorer_model.score(feature_values))
{'prediction': True, 'probability': {False: 0.4694409344514984, True: 0.5305590655485017}}

Installation

The easiest way to install revscoring is via the Python package installer (pip).

pip install revscoring

You may find that some of revscorings dependencies fail to compile (namely scipy, numpy and sklearn). In that case, you'll need to install some dependencies in your operating system.

Ubuntu & Debian:

Run sudo apt-get install python3-dev g++ gfortran liblapack-dev libopenblas-dev

Windows:

'TODO'

MacOS:

Using Homebrew and pip, installing revscoring and enchant can be accomplished as follows:

brew install aspell --with-all-languages
brew install enchant
pip install --no-binary pyenchant revscoring

Languages can be added to aspell:

cd /tmp
wget http://ftp.gnu.org/gnu/aspell/dict/pt/aspell-pt-0.50-2.tar.bz2
bzip2 -dc aspell-pt-0.50-2.tar.bz2 | tar xvf -
cd aspell-pt-0.50-2
./configure
make
sudo make install

Caveats:

• The differences between the aspell and myspell dictionaries can cause some of the tests to fail

Finally, in order to make use of language features, you'll need to download some NLTK data. The following command will get the necessary corpus.

python -m nltk.downloader stopwords

You'll also need to install enchant compatible dictionaries of the languages you'd like to use. We recommend the following:

• languages.arabic: aspell-ar
• languages.bengali: aspell-bn
• languages.czech: myspell-cs
• languages.dutch: myspell-nl
• languages.english: myspell-en-us myspell-en-gb myspell-en-au
• languages.estonian: myspell-et
• languages.finnish: voikko-fi
• languages.french: myspell-fr
• languages.german: myspell-de-at myspell-de-ch myspell-de-de
• languages.greek: aspell-el
• languages.hebrew: myspell-he
• languages.hungarian: myspell-hu
• languages.indonesian: aspell-id
• languages.italian: myspell-it
• languages.norwegian: myspell-nb
• languages.persian: myspell-fa
• languages.polish: aspell-pl
• languages.portuguese: myspell-pt
• languages.spanish: myspell-es
• languages.swedish: aspell-sv
• languages.tamil: aspell-ta
• languages.russian: myspell-ru
• languages.ukrainian: myspell-uk
• languages.vietnamese: hunspell-vi

Authors

Aaron Halfaker:

• http://halfaker.info

Helder:

• https://github.com/he7d3r

Adam Roses Wight:

• https://mediawiki.org/wiki/User:Adamw

Amir Sarabadani:

• https://github.com/Ladsgroup