Trill: A Reusable Front-End for QA Systems

  • Dennis Diefenbach
  • Shanzay Amjad
  • Andreas Both
  • Kamal Singh
  • Pierre Maret
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 10577)


The Semantic Web contains an enormous amount of information in the form of knowledge bases. To make this information available to end-users many question answering (QA) systems over knowledge bases were created in the last years. Their goal is to enable users to access large amounts of structured data in the Semantic Web by bridging the gap between natural language and formal query languages like SPARQL.

But automatically generating a SPARQL query from a user’s question is not sufficient to bridge the gap between Semantic Web data and the end-users. The result of a SPARQL query consists of a list of URIs and/or literals, which is not a user-friendly presentation of the answer. Such a presentation includes the representation of the URI in the right language and additional information like images, maps, entity summaries and more.

We present Trill, the first reusable user-interface (UI) for QA systems over knowledge bases supporting text and audio input, able to present answers from DBpedia and Wikidata in 4 languages (English, French, German, and Italian). It is designed to be used together with Qanary, an infrastructure for composing QA pipelines. This front-end enables the QA community to show their results to end-users and enables the research community to explore new research directions like studying and designing user-interactions with QA systems.


Question answering systems Front-end User interaction Answer presentation 



Parts of this work received funding from the European Union’s Horizon 2020 research and innovation programme under the Marie Skodowska-Curie grant agreement No. 642795, project: Answering Questions using Web Data (WDAqua).


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Copyright information

© Springer International Publishing AG 2017

Authors and Affiliations

  • Dennis Diefenbach
    • 1
  • Shanzay Amjad
    • 2
  • Andreas Both
    • 3
  • Kamal Singh
    • 1
  • Pierre Maret
    • 1
  1. 1.Laboratoire Hubert CurienSaint EtienneFrance
  2. 2.University of OttawaOttawaCanada
  3. 3.DATEV eGNurembergGermany

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