ReVerb is a system that extracts relational triples from text.
Specifically, ReVerb is a program that automatically identifies and extracts binary relationships from English sentences. ReVerb is designed for Web-scale information extraction, where the target relations cannot be specified in advance and speed is important.
ReVerb takes raw text as input, and outputs (argument1, relation phrase, argument2) triples. It takes as input a POS-tagged and NP-chunked sentence and returns a set of (x,r,y) extraction triples. For example, given the sentence “Bananas are an excellent source of potassium,” ReVerb will extract the triple (bananas, be source of, potassium).
A collection of 15 million ReVerb extractions is available for academic use.
Features include:
- Command Line Interface – takes plain text or HTML as input, and outputs a tab-separated table of output. Each row in the output represents a single extracted (argument1, relation phrase, argument2) triple, plus metadata.
- Java Interface.
- Includes a class for training new confidence functions, given a list of labeled examples, called ReVerbClassifierTrainer.
- Easily parallelizable by processing different sentences concurrently.
- Elimination of incoherent extractions.
Website: reverb.cs.washington.edu
Support: Mailing List, GitHub Code Repository
Developer: University of Washington – Anthony Fader, Michael Schmitz, Robert Bart, Stephen Soderland, Oren Etzioni
License: ReVerb Software License Agreement
Open Information Extraction (IE) is the task of extracting assertions from massive corpora without requiring a pre-specified vocabulary.
ReVerb is written in Java. Learn Java with our recommended free books and free tutorials.
Return to Java Natural Language Tools
| Popular series | |
|---|---|
 | The largest compilation of the best free and open source software in the universe. Each article is supplied with a legendary ratings chart helping you to make informed decisions. |
 | Hundreds of in-depth reviews offering our unbiased and expert opinion on software. We offer helpful and impartial information. |
 | The Big List of Active Linux Distros is a large compilation of actively developed Linux distributions. |
 | Replace proprietary software with open source alternatives: Google, Microsoft, Apple, Adobe, IBM, Autodesk, Oracle, Atlassian, Corel, Cisco, Intuit, and SAS. |
 | Awesome Free Linux Games Tools showcases a series of tools that making gaming on Linux a more pleasurable experience. This is a new series. |
 | Machine Learning explores practical applications of machine learning and deep learning from a Linux perspective. We've written reviews of more than 40 self-hosted apps. All are free and open source. |
 | New to Linux? Read our Linux for Starters series. We start right at the basics and teach you everything you need to know to get started with Linux. |
 | Alternatives to popular CLI tools showcases essential tools that are modern replacements for core Linux utilities. |
 | Essential Linux system tools focuses on small, indispensable utilities, useful for system administrators as well as regular users. |
 | Linux utilities to maximise your productivity. Small, indispensable tools, useful for anyone running a Linux machine. |
 | Surveys popular streaming services from a Linux perspective: Amazon Music Unlimited, Myuzi, Spotify, Deezer, Tidal. |
 | Saving Money with Linux looks at how you can reduce your energy bills running Linux. |
 | Home computers became commonplace in the 1980s. Emulate home computers including the Commodore 64, Amiga, Atari ST, ZX81, Amstrad CPC, and ZX Spectrum. |
 | Now and Then examines how promising open source software fared over the years. It can be a bumpy ride. |
 | Linux at Home looks at a range of home activities where Linux can play its part, making the most of our time at home, keeping active and engaged. |
 | Linux Candy reveals the lighter side of Linux. Have some fun and escape from the daily drudgery. |
 | Getting Started with Docker helps you master Docker, a set of platform as a service products that delivers software in packages called containers. |
 | Best Free Android Apps. We showcase free Android apps that are definitely worth downloading. There's a strict eligibility criteria for inclusion in this series. |
 | These best free books accelerate your learning of every programming language. Learn a new language today! |
 | These free tutorials offer the perfect tonic to our free programming books series. |
 | Linux Around The World showcases usergroups that are relevant to Linux enthusiasts. Great ways to meet up with fellow enthusiasts. |
 | Stars and Stripes is an occasional series looking at the impact of Linux in the USA. |