KB

Freebase, which is a large collaborative semantic knowledge graph, derived from Wikipedia and MusicBrainz among others. We restrict the data in the demo to the factual part of Freebase, and exclude any meta relations used by Freebase for its own bookkeeping.

Advanced Options

• Training Resource
  • WebQuestions

    which consists of 3778 training questions and 2032 test questions, each paired with its answer set, collected using the Google Suggest API and crowdsourcing.

  • Free917

    which consists of 917 questions manually annotated with their Freebase query; 641 training and 276 test questions.

• QUINT Mode
  • Typed

    QUINT generates templates that type the answer entity.

  • Untyped

    All templates do not type the answer entity.

• Number of Decision Trees for LTR

  The number of decision trees to be used by our learning-to-rank random forest classifier.

Miscellaneous

• Please note that queries may be logged.
• The system is under active development to add more features. If you face any issues please contact Rishiraj Saha Roy (rsaharo@mpi-inf.mpg.de).

Contributors

• Abdalghani Abujabal
• Rishiraj Saha Roy
• Mohamed Yahya
• Gerhard Weikum

Paper

Interpretable Question Answering over Knowledge Bases

Abdalghani Abujabal, Rishiraj Saha Roy, Mohamed Yahya and Gerhard Weikum

EMNLP, 2017