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2nd Open Challenge on Question Answering over Linked Data (QALD-2)

From: Philipp Cimiano <cimiano@cit-ec.uni-bielefeld.de>
Date: Mon, 06 Feb 2012 20:40:43 +0100
Message-ID: <4F302CBB.9090008@cit-ec.uni-bielefeld.de>
To: "semantic-web@w3.org\"" <semantic-web@w3.org>
The QALD-2 Open Challenge on Question Answering over Linked Data is on!

Question answering systems of all kinds are invited to participate in the shared task of processing natural language queries and retrieving relevant answers from a given RDF dataset, thereby providing an in-depth view of the strength, capabilities and current short-comings of existing systems.

We provide two datasets: DBpedia 3.7 and MusicBrainz, which can either be downloaded or accessed via a SPARQL endpoint. In addition, we provide 100 training questions for each dataset, annotated with corresponding SPARQL queries and answers. Later, during test phase, participating systems will be evaluated with respect to precision and recall on a set of similar test questions. Submission of results will be possible via an online form, which can also be used for checking evaluation results on the training questions.

For detailed information as well as links to the datasets and training questions, please check the  workshop website:

Although the competition is tailored towards question answering systems based on natural language, we strongly encourage other relevant systems and methods that can benefit from the evaluation datasets to also report their results.

We wish you success and hope you have fun!
With best regards,
Christina Unger,
Philipp Cimiano,
Vanessa Lopez,
Enrico Motta,
Paul Buitelaar,
Richard Cyganiak

Prof. Dr. Philipp Cimiano
Semantic Computing Group
Excellence Cluster - Cognitive Interaction Technology (CITEC)
University of Bielefeld

Phone: +49 521 106 12249
Fax: +49 521 106 12412
Mail: cimiano@cit-ec.uni-bielefeld.de

Room H-127
Morgenbreede 39
33615 Bielefeld
Received on Monday, 6 February 2012 19:44:00 UTC

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