Skip to content


Subversion checkout URL

You can clone with
Download ZIP
Fetching contributors…
Cannot retrieve contributors at this time
34 lines (25 sloc) 2.07 KB

Build Status Dependency Status

Treat is a framework for natural language processing and computational linguistics in Ruby. It provides a common API for a number of gems and external libraries for document retrieval, parsing, annotation, and information extraction.

Current features

  • Text extractors for PDF, HTML, XML, Word, AbiWord, OpenOffice and image formats (Ocropus).
  • Text retrieval with indexation and full-text search (Ferret).
  • Text chunkers, sentence segmenters, tokenizers, and parsers for several languages (Stanford & Enju).
  • Word inflectors, including stemmers, conjugators, declensors, and number inflection.
  • Lexical resources (WordNet interface, several POS taggers for English, Stanford taggers for several languages).
  • Language, date/time, topic words (LDA) and keyword (TF*IDF) extraction.
  • Serialization of annotated entities to YAML, XML formats or to MongoDB.
  • Visualization in ASCII tree, directed graph (DOT) and tag-bracketed (standoff) formats.
  • Linguistic resources, including language detection and tag alignments for several treebanks.
  • Decision tree and multilayer perceptron classification (liblinear coming soon!)



This software is released under the GPL License and includes software released under the GPL, Ruby, Apache 2.0 and MIT licenses.

Jump to Line
Something went wrong with that request. Please try again.