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Curated List: Practical Natural Language Processing done in Ruby

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Aug 27, 2022

Multipurpose Engines

• ruby-spacy (⭐65) — Wrapper module for spaCy NLP library via PyCall (⭐1.1k).

Mar 30, 2021

Language Aware String Manipulation / Constituency Parsing

• iuliia (⭐10) — transliteration Cyrillic to Latin in many possible ways (defined by the reference implementation (⭐72)).

Jan 17, 2019

Spelling and Error Correction / Constituency Parsing

• gingerice (⭐478) - Spelling and Grammar corrections via the Ginger API.

Articles, Posts, Talks, and Presentations / Constituency Parsing

• 2019
  • Extracting Text From Images Using Ruby by aonemd ^{[post | code]}

• 2018
  • Natural Language Processing and Tweet Sentiment Analysis by Cassandra Corrales ^[post]

• 2017
  • The Google NLP API Meets Ruby by Aja Hammerly ^[post]
  • Syntax Isn't Everything: NLP For Rubyists by Aja Hammerly ^[slides]
  • Scientific Computing on JRuby by Prasun Anand ^{[slides | video | slides | slides]}
  • Unicode Normalization in Ruby by Starr Horne ^[post]

Related Resources / Constituency Parsing

• ImageMagick

Sep 02, 2017

Machine Learning Libraries / Constituency Parsing

• rblearn (⭐2) - Feature Extraction and Crossvalidation library.

Jul 27, 2017

Language Aware String Manipulation / Constituency Parsing

• regex_sample - sample string generation from a given Regular Expression.

Jul 24, 2017

Language Aware String Manipulation / Constituency Parsing

• translit_kit (⭐7) - Transliterate Hebrew & Yiddish text into Latin characters.

• re2 (⭐146) - hight-speed Regular Expression library for Text Mining and Text Extraction.

Jun 14, 2017

Related Resources / Constituency Parsing

• Neural Machine Translation Implementations (⭐363)

May 24, 2017

Community / Constituency Parsing

• Stack Overflow

May 19, 2017

Dialog Agents, Assistants, and Chatbots / Constituency Parsing

• chatterbot (⭐490) - Straightforward ruby-based Twitter Bot Framework, using OAuth to authenticate.

• lita (⭐1.7k) - Highly extensible chat operation bot framework written with persistent storage on Redis.

May 17, 2017

Articles, Posts, Talks, and Presentations / Constituency Parsing

• 2011
  • Ruby one-liners by Benoit Hamelin ^[post]
  • Clustering in Ruby by Colin Drake ^[post/)]

May 16, 2017

Multipurpose Engines / On-line APIs

• google-cloud-language (⭐1.4k) - Google's Natural Language service API for Ruby.

May 07, 2017

Pipeline Generation

• parallel (⭐4.2k) - Supervisor for parallel execution on multiple CPUs or in many threads.

• pwrake (⭐57) - Rake extensions to run local and remote tasks in parallel.

May 02, 2017

Projects and Code Examples / Constituency Parsing

• RSyntaxTree - Web based demonstration of the syntactic tree visualization.

Apr 21, 2017

Articles, Posts, Talks, and Presentations / Constituency Parsing

• 2006
  • Speak My Language: Natural Language Processing With Ruby by Michael Granger ^{[slides | write-up | write-up]}

Apr 16, 2017

Lexical Processing / Lexical Statistics: Counting Types and Tokens

• words_counted (⭐162) - Pure Ruby library counting word statistics with different custom options.

Full Text Search, Information Retrieval, Indexing / Constituency Parsing

• google-api-client (⭐2.8k) - Ruby API library for Google services.

Machine Translation / Constituency Parsing

• zipf (⭐3) - implementation of BLEU and other base algorithms.

Text Extraction / Constituency Parsing

• yomu (⭐502) - library for extracting text and metadata from files and documents using the Apache Tika content analysis toolkit.

Projects and Code Examples / Constituency Parsing

• Words Counted - examples of customizable word statistics powered by words_counted (⭐162).

Apr 14, 2017

Optical Character Recognition / Constituency Parsing

• tesseract-ocr (⭐630) - FFI based wrapper over the Tesseract OCR Engine (⭐68k).

Language Aware String Manipulation / Constituency Parsing

• fuzzy_match (⭐680) - Fuzzy string comparison with Distance measures and Regular Expression.

• fuzzy_tools (⭐23) - Toolset for fuzzy searches in Ruby tuned for accuracy.

Needs your Help! / Constituency Parsing

• summarize (⭐205) - Ruby native wrapper for Open Text Summarizer (⭐243).

Apr 11, 2017

Machine Learning Libraries / Constituency Parsing

• ruby-fann (⭐505) - Ruby bindings to the Fast Artificial Neural Network Library (FANN).

Full Text Search, Information Retrieval, Indexing / Constituency Parsing

• rsolr (⭐420) - Ruby and Rails client library for Apache Solr.

• sunspot (⭐3k) - Rails centric client for Apache Solr.

• thinking-sphinx (⭐1.6k) - Active Record plugin for using Sphinx in (not only) Rails based projects.

• elasticsearch (⭐2k) - Ruby client and API for Elasticsearch.

• elasticsearch-rails (⭐3.1k) - Ruby and Rails integrations for Elasticsearch.

Articles, Posts, Talks, and Presentations / Constituency Parsing

• 2009
  • Porting the UEA-Lite Stemmer to Ruby by Jason Adams ^[post]
  • NLP Resources for Ruby by Jason Adams ^[post]

Projects and Code Examples / Constituency Parsing

• Going the Distance (⭐61) - Implementations of various distance algorithms with example calculations.

• Named entity recognition with Stanford NER and Ruby (⭐20) - NER Examples in Ruby and Java with some explanations.

Needs your Help! / Constituency Parsing

• ferret (⭐280) - Information Retrieval in C and Ruby.

Apr 10, 2017

Articles, Posts, Talks, and Presentations / Constituency Parsing

• 2016
  • Quickly Create a Telegram Bot in Ruby by Ardian Haxha ^[tutorial]
  • Deep Learning: An Introduction for Ruby Developers by Geoffrey Litt ^[slides]
  • How I made a pure-Ruby word2vec program more than 3x faster by Kei Sawada ^[slides]
  • Dōmo arigatō, Mr. Roboto: Machine Learning with Ruby by Eric Weinstein ^{[slides | video]}

Apr 06, 2017

Machine Learning Libraries / Constituency Parsing

• decisiontree (⭐1.5k) - Decision Tree ID3 Algorithm in pure Ruby ^[post].

Articles, Posts, Talks, and Presentations / Constituency Parsing

• 2007
  • Decision Tree Learning in Ruby by Ilya Grigorik ^[post]

Apr 05, 2017

Multipurpose Engines / On-line APIs

• wlapi (⭐19) - Ruby client library for Wortschatz Leipzig web services.

Lexical Processing / Filtering Stop Words

• stopwords-filter (⭐78) - Filter and Stop Word Lexicon based on the SnowBall lemmatizer.

Sentiment Analysis / Constituency Parsing

• stimmung (⭐20) - Semantic Polarity based on the SentiWS lexicon.

Mar 03, 2017

Numbers, Dates, and Time Parsing / Constituency Parsing

• numerizer (⭐38) - Ruby parser for English number expressions.

Articles, Posts, Talks, and Presentations / Constituency Parsing

• 2015
  • N-gram Analysis for Fun and Profit by Jesus Castello ^[tutorial]
  • Machine Learning made simple with Ruby by Lorenzo Masini ^[tutorial]
  • Using Ruby Machine Learning to Find Paris Hilton Quotes by Rick Carlino ^[tutorial]
  • Exploring Natural Language Processing in Ruby by Kevin Dias ^[slides]
  • Machine Learning made simple with Ruby by Lorenzo Masini ^[post]
  • Practical Data Science in Ruby by Bobby Grayson ^[slides]

Feb 24, 2017

Spelling and Error Correction / Constituency Parsing

• hunspell-i18n (⭐4) - Ruby bindings to the standard Hunspell Spell Checker.

• ffi-hunspell (⭐49) - FFI based Ruby bindings for Hunspell.

• hunspell (⭐35) - Ruby bindings to Hunspell via Ruby C API.

Feb 17, 2017

Pipeline Generation

• phobos (⭐219) - Simplified Ruby Client for Apache Kafka.

Feb 15, 2017

Language Identification / On-line APIs

• scylla (⭐36) - Language Categorization and Identification.

Feb 10, 2017

Linguistic Resources / Constituency Parsing

• rwordnet (⭐90) - Pure Ruby self contained API library for the Princeton WordNet®.

• wordnet (⭐138) - Performance tuned bindings for the Princeton WordNet®.

Feb 03, 2017

Multipurpose Engines

• open_nlp (⭐11) - JRuby Bindings for the OpenNLP Toolkit.

Jan 29, 2017

Multipurpose Engines

• nlp_toolz (⭐2) - Wrapper over some OpenNLP classes and the original Berkeley Parser (⭐182).

Machine Learning Libraries / Constituency Parsing

• lda-ruby (⭐133) - Ruby implementation of the LDA (Latent Dirichlet Allocation) for automatic Topic Modelling and Document Clustering.

Jan 23, 2017

Articles, Posts, Talks, and Presentations / Constituency Parsing

• 2010
  • bayes_motel – Bayesian classification for Ruby by Mike Perham ^[post]

Jan 10, 2017

Multipurpose Engines / On-line APIs

• monkeylearn-ruby (⭐80) - Sentiment Analysis, Topic Modelling, Language Detection, Named Entity Recognition via a Ruby based Web API client.

Jan 09, 2017

Multipurpose Engines

• open-nlp (⭐91) - Ruby Bindings for the OpenNLP Toolkit.

• stanford-core-nlp (⭐434) - Ruby Bindings for the Stanford CoreNLP (⭐9.9k) tools.

Numbers, Dates, and Time Parsing / Constituency Parsing

• chronic (⭐3.2k) - Pure Ruby natural language date parser.

Articles, Posts, Talks, and Presentations / Constituency Parsing

• 2014
  • Natural Language Parsing with Ruby by Glauco Custódio ^[tutorial]
  • Demystifying Data Science: Analyzing Conference Talks with Rails and Ngrams by Todd Schneider ^{[video | code (⭐34)]}
  • Natural Language Processing with Ruby by Konstantin Tennhard ^{[video | video | video | slides]}

Jan 06, 2017

Multipurpose Engines

• treat (⭐1.4k) - Natural Language Processing framework for Ruby (like NLTK for Python).

Multipurpose Engines / On-line APIs

• wit-ruby (⭐282) - Ruby client library for the Wit.ai Language Understanding Platform.

Related Resources / Constituency Parsing

• Awesome TensorFlow (⭐17k) - Machine Learning with TensorFlow libraries.

Jan 04, 2017

Multipurpose Engines / On-line APIs

• alchemyapi_ruby (⭐36) - Legacy Ruby SDK for AlchemyAPI/Bluemix.

Related Resources / Constituency Parsing

• Awesome Ruby (⭐14k) - Among other awesome items a short list of NLP related projects.

• Awesome OCR (⭐3k) - Multitude of OCR (Optical Character Recognition) resources.

Dec 19, 2016

Pipeline Generation

• ruby-spark (⭐227) - Spark bindings with an easy to understand DSL.

Dec 12, 2016

Pipeline Generation

• composable_operations (⭐46) - Definition framework for operation pipelines.

Dec 08, 2016

Articles, Posts, Talks, and Presentations / Constituency Parsing

• 2012
  • Machine Learning with Ruby, Part One by Vasily Vasinov ^[tutorial]

Dec 07, 2016

Articles, Posts, Talks, and Presentations / Constituency Parsing

• 2013
  • How to parse 'go' - Natural Language Processing in Ruby by Tom Cartwright ^{[slides | video]}
  • Natural Language Processing in Ruby by Brandon Black ^{[slides | video]}
  • Natural Language Processing with Ruby: n-grams by Nathan Kleyn ^{[tutorial | code (⭐33)]}
  • Seeking Lovecraft, Part 1: An introduction to NLP and the Treat Gem by Robert Qualls ^[tutorial]

Related Resources / Constituency Parsing

• Speech and Natural Language Processing (⭐2.2k) - General List of NLP related resources (mostly not for Ruby programmers).

Dec 06, 2016

Related Resources / Constituency Parsing

• Ruby NLP (⭐1.3k) - State-of-Art collection of Ruby libraries for NLP.

• Scientific Ruby - Linear Algebra, Visualization and Scientific Computing for Ruby.

• iRuby (⭐917) - IRuby kernel for Jupyter (formelly IPython).

Nov 30, 2016

Community / Constituency Parsing

• Reddit

• Twitter

Nov 29, 2016

Language Aware String Manipulation / Constituency Parsing

• active_support (⭐57k) - RoR ActiveSupport gem has various string extensions that can handle case.

Books / Constituency Parsing

• Miller, Rob. Text Processing with Ruby: Extract Value from the Data That Surrounds You. Pragmatic Programmers, 2015. ^[link]

• Watson, Mark. Practical Semantic Web and Linked Data Applications. Lulu, 2010. ^[link]

Nov 27, 2016

Segmentation / On-line APIs

• tokenizer (⭐45) - Simple multilingual tokenizer. ^[tutorial]

• pragmatic_tokenizer (⭐91) - Multilingual tokenizer to split a string into tokens.

• textoken (⭐31) - Simple and customizable text tokenization library.

• pragmatic_segmenter (⭐572) - Word Boundary Disambiguation with many cookies.

• punkt-segmenter (⭐92) - Pure Ruby implementation of the Punkt Segmenter.

• tactful_tokenizer (⭐80) - RegExp based tokenizer for different languages.

• scapel (⭐51) - Sentence Boundary Disambiguation tool.

Lexical Processing / Stemming

• ruby-stemmer (⭐250) - Ruby-Stemmer exposes the SnowBall API to Ruby.

• uea-stemmer (⭐54) - Conservative stemmer for search and indexing.

Lexical Processing / Lemmatization

• lemmatizer (⭐108) - WordNet based Lemmatizer for English texts.

Lexical Processing / Lexical Statistics: Counting Types and Tokens

• wc (⭐6) - Facilities to count word occurrences in a text.

• word_count (⭐5) - Word counter for String and Hash objects.

Phrasal Level Processing / Filtering Stop Words

• n_gram (⭐37) - N-Gram generator.

• ruby-ngram (⭐12) - Break words and phrases into ngrams.

• raingrams (⭐69) - Flexible and general-purpose ngrams library written in pure Ruby.

Semantic Analysis / Constituency Parsing

• amatch (⭐384) - Set of five distance types between strings (including Levenshtein, Sellers, Jaro-Winkler, 'pair distance').

• damerau-levenshtein (⭐146) - Calculates edit distance using the Damerau-Levenshtein algorithm.

• hotwater (⭐80) - Fast Ruby FFI string edit distance algorithms.

• levenshtein-ffi (⭐151) - Fast string edit distance computation, using the Damerau-Levenshtein algorithm.

• tf_idf (⭐35) - Term Frequency / Inverse Document Frequency in pure Ruby.

• tf-idf-similarity (⭐765) - Calculate the similarity between texts using TF/IDF.

Pragmatical Analysis / Constituency Parsing

• SentimentLib (⭐14) - Simple extensible sentiment analysis gem.

Text Alignment / Constituency Parsing

• alignment (⭐1) - Alignment routines for bilingual texts (Gale-Church implementation).

Machine Translation / Constituency Parsing

• microsoft_translator (⭐21) - Ruby client for the microsoft translator API.

• termit (⭐508) - Google Translate with speech synthesis in your terminal.

Numbers, Dates, and Time Parsing / Constituency Parsing

• chronic_between (⭐28) - Simple Ruby natural language parser for date and time ranges.

• chronic_duration (⭐355) - Pure Ruby parser for elapsed time.

• kronic (⭐149) - Methods for parsing and formatting human readable dates.

• nickel (⭐117) - Extracts date, time, and message information from naturally worded text.

• tickle (⭐82) - Parser for recurring and repeating events.

Named Entity Recognition / Constituency Parsing

• ruby-ner (⭐20) - Named Entity Recognition with Stanford NER and Ruby.

• ruby-nlp (⭐92) - Ruby Binding for Stanford Pos-Tagger and Name Entity Recognizer.

Text-to-Speech-to-Text / Constituency Parsing

• espeak-ruby (⭐196) - Small Ruby API for utilizing 'espeak' and 'lame' to create text-to-speech mp3 files.

• tts (⭐94) - Text-to-Speech conversion using the Google translate service.

• att_speech (⭐20) - Ruby wrapper over the AT&T Speech API for speech to text.

• pocketsphinx-ruby (⭐258) - Pocketsphinx bindings.

Machine Learning Libraries / Constituency Parsing

• rb-libsvm (⭐278) - Support Vector Machines with Ruby.

• rtimbl (⭐5) - Memory based learners from the Timbl framework.

• classifier-reborn (⭐555) - General classifier module to allow Bayesian and other types of classifications.

• liblinear-ruby-swig (⭐83) - Ruby interface to LIBLINEAR (much more efficient than LIBSVM for text classification).

• linnaeus (⭐38) - Redis-backed Bayesian classifier.

• maxent_string_classifier (⭐9) - JRuby maximum entropy classifier for string data, based on the OpenNLP Maxent framework.

• naive_bayes (⭐49) - Simple Naive Bayes classifier.

• nbayes (⭐154) - Full-featured, Ruby implementation of Naive Bayes.

• omnicat (⭐11) - Generalized rack framework for text classifications.

• omnicat-bayes (⭐31) - Naive Bayes text classification implementation as an OmniCat classifier strategy.

Language Aware String Manipulation / Constituency Parsing

• fuzzy-string-match (⭐284) - Fuzzy string matching library for Ruby.

• u - U extends Ruby’s Unicode support.

• unicode (⭐81) - Unicode normalization library.

• CommonRegexRuby (⭐80) - Find a lot of kinds of common information in a string.

• regexp-examples (⭐521) - Generate strings that match a given regular expression.

• verbal_expressions (⭐571) - Make difficult regular expressions easy.

Apr 22, 2016

Segmentation / On-line APIs

• nlp-pure (⭐20) - Natural language processing algorithms implemented in pure Ruby with minimal dependencies.

Machine Learning Libraries / Constituency Parsing

• weka (⭐64) - JRuby bindings for Weka, different ML algorithms implemented through Weka.