Federated Knowledge Extraction Framework
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FOX - Federated Knowledge Extraction Framework

FOX (http://fox.aksw.org) is a framework that integrates the Linked Data Cloud and makes use of the diversity of NLP algorithms to extract RDF triples of high accuracy out of NL. In its current version, it integrates and merges the results of Named Entity Recognition tools.


Java 8, Maven 3, graphviz (for JavaDoc only)




This version supports multiple languages for NER, NED and RE.

Live Demo: http://fox-demo.aksw.org

Release: (Version 2.5.0)

How to cite

english version with details

  booktitle={The Semantic Web – ISWC 2014},
  series={Lecture Notes in Computer Science},
  title={Ensemble Learning for Named Entity Recognition},
  publisher={Springer International Publishing},
  author={Ren{\'e} Speck and Axel-Cyrille {Ngonga Ngomo}},

extended version for multiple languages

   author={Ren{\'e} Speck and Axel-Cyrille {Ngonga Ngomo}},
   title={{Ensemble Learning of Named Entity Recognition Algorithms using Multilayer Perceptron for the Multilingual Web of Data}},
   booktitle={K-CAP 2017: Knowledge Capture Conference},


FOX is licensed under the GNU GPL Version 2, June 1991 (license document is in the application folder).

FOX uses several other libraries. An incomplete list is as follows:

  • Illinois NLP Pipeline (University of Illinois Research and Academic Use License)
  • Stanford CoreNLP (GNU GPL Version 2)
  • Apache OpenNLP (Apache License, Version 2)
  • Balie (GNU GPL Version 2)


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