HQA 2018:
First International Workshop on Hybrid Question Answering with Structured and Unstructured Knowledge

Part of WWW'18, April 23, 2018, Lyon, France

CFP can be downloaded from cfp-haq18.pdf.

  • Title and abstract submission: February 1, 2018
  • Paper submission: February 5, 2018
  • Notifications: February 15, 2018
  • Early-bird registrations deadline: February 21, 2018
  • Final version due: March 4, 2018

More and more knowledge is available electronically in a structured or unstructured form over the World Wide Web (WWW). Such knowledge has become a rich resource to answer our daily life questions and even scientific questions posed by domain experts. Accordingly, it becomes a necessity to develop tools that can (semi-)automatically answer questions based on the large amount of available data.

Such challenges have been targeted separately over the last years by different communities, including Query Answering in Semantic Web based on structured semantic data and Question Answering in Natural Language Processing based on unstructured textual data. While the former is powerful in representing complex questions and exploring background knowledge (e.g., large biomedical ontologies), it is often difficult to master and cannot be used without a specialized user interface. In contrast, the latter can formulate constraints that cannot be represented formally by query answering approaches due to the limited expressiveness of formal languages. But it is not obvious how to take into account the background and common sense knowledge to get precise answers over structured data.

The objective of this workshop is to bring together researchers and developers working on question/query answering systems over structured or unstructured knowledge, and create a platform to grow potential collaborations in this multidisciplinary task.

Topics of interest include, but are not limited to, the following:

  • Natural Language Processing based question answering
  • Ontology based query answering
  • Hybrid reasoning
  • Information extraction over unstructured and structured data
  • Applications of question answering
  • Domain-specific question answering
  • Temporal event extraction from tex
  • Temporal reasoning for query answering
  • Ontologies and knowledge graphs
  • Biomedical text analysis
  • Datasets combining structured and unstructured knowledge


Papers for the workshop should be submitted in PDF format via EasyChair at this link, selecting the track First International Workshop on Hybrid Question Answering with Structured and Unstructured Knowledge. Submitted papers must use the new ACM format published in ACM guidelines (download from here), selecting the generic “sigconf” sample . Submissions must be in English and not exceed 4-6 pages in length.

Papers must have not been previously published or be under review at another workshop. However, we encourage submissions that present summaries or highlights of work appearing elsewhere in longer form. Accepted papers will be published in a companion volume of the main proceedings of The Web Conference 2018.


PC Chairs

Organization Commmittee

  • Stefan Borgwardt, TU Dresden, Germany
  • Sanjay Kamath, LRI/LIMSI, CNRS, Université Paris Sud, France
  • Pierre Zweigenbaum, LIMSI, CNRS, Université Paris Saclay, France

Program Committee (to be extended)

  • Meghyn Bienvenu, LIRMM, CNRS, France
  • Elena Cabrio, Inria, CNRS, I3S, Université Côte d’Azur, France
  • Francesco Donini, Università della Tuscia, Italy
  • Walter Forkel, TU Dresden, Germany
  • Zhisheng Huang, Vrije University of Amsterdam, The Netherlands
  • Jens Lehmann, University of Bonn, Germany
  • Anne-Laure Ligozat, LIMSI, CNRS, Université Paris Saclay, France
  • Raghava Mutharaju, GE Global Research Center, USA
  • Jeff Pan, The University of Aberdeen, United Kingdom
  • Anselmo Peñas, National Distance Learning University, Spain
  • Guilin Qi, Southeast University, China
  • Fathia Sais, LRI, CNRS, Université Paris Sud, France
  • Fabian M. Suchanek, Télécom ParisTech, France
  • Michaël Thomazo, INRIA Saclay, France
  • Guohui Xiao, Free University of Bozen-Bolzano, Italy

Keynote speakers (to be extended)

We will welcome Prof. Eric Gaussier for an invited talk at HQA'18.



For details about traveling to Lyon, accommodation, and registration, please see the web pages of The Web Conference 2018.