Semantic Web Challenge

13th ESWC 2016
Call for Semantic Web Challenges Entries

Open Knowledge Extraction (OKE) Challenge
Challenge on Semantic Sentiment Analysis
Conference Live app Challenge
Open Challenge on Question Answering over Linked Data
Top-K Shortest Path in Large Typed RDF Graphs Challenge
Semantic Publishing Challenge — Bonus Challenge


The 13th ESWC, to be held from May 29th to June 2nd in Heraklion, Crete, features no less than seven challenges this year!

The purpose of the challenges is to showcase the maturity of state of the art methods and tools on tasks common to the Semantic Web community and adjacent disciplines, in a controlled setting involving rigorous evaluation.

Semantic Web Challenges are an official track of the conference, ensuring significant visibility for the challenges as well as participants. Challenge participants are asked to present their submissions as well as provide a paper describing their work. The details of the submissions may vary per challenge and will be found in the individual calls. These papers must undergo a peer-review by experts relevant to the challenge task, and will be published in the official ESWC2016 Satellite Events proceedings.


Individual challenges may deviate from these dates but as a rule the following dates apply:

* Training data ready and challenges Calls for Papers sent: Friday January 15th, 2016
* Challenge papers submission deadline: Friday March 11th, 2016
* Challenge paper reviews due: Tuesday April 5th, 2016
* Notifications sent to participants and invitations to submit task results: Friday April 8th, 2016
* Test data (and other participation tools) published: Friday April 8th, 2016
* Camera ready papers due: Sunday April 24th, 2016​


Open Knowledge Extraction (OKE) Challenge
The OKE challenge, launched as first edition at last year Extended Semantic Web Conference, ESWC2015, has the ambition to provide a reference framework for researc on Knowledge Extraction from text for the Semantic Web by re-defining a number of tasks (typically from information and knowledge extraction), taking into account specific SW requirements.

Challenge on Semantic Sentiment Analysis
Social media evolution has given users one important opportunity for expressing their thoughts and opinions online. The information thus produced is related to many different areas such as commerce, tourism, education, health and causes the size of the Social Web to expand exponentially.

Conference Live app Challenge
In the past two years the Extended Semantic Web Conference (ESWC) has provided a semantic Web application to browse conference data. The application, called Conference Live, is a Web and mobile application based on conference data from the Semantic Web Dog Food server, which provides facilities to browse papers and authors at a specific conference.

6th Open Challenge on Question Answering over Linked Data (QALD-6)
The past years have seen a growing amount of research on question answering over Semantic Web data, shaping an interaction paradigm that allows end users to profit from the expressive power of Semantic Web standards while at the same time hiding their complexity behind an intuitive and easy-to-use interface. The Question Answering over Linked Data challenge provides an up-to-date benchmark for assessing and comparing systems that mediate between a user, expressing his or her information need in natural language, and RDF data.

Top-K Shortest Path in Large Typed RDF Graphs Challenge
The advent of SPARQL 1.1 introduced property paths as a new graph matching paradigm that allows the employment of Kleene star * (and it’s variant +) unary operators to build SPARQL queries that are agnostic of the underlying RDF graph structure. The ability to express path patterns that are agnostic of the underlying graph structure is certainly a step forward.

Semantic Publishing Challenge 2016 – Assessing the Quality of Scientific Output in its Ecosystem
This is the next iteration of the successful Semantic Publishing Challenge of ESWC 2014 and 2015. We continue pursuing the objective of assessing the quality of scientific output, evolving thedataset bootstrapped in 2014 and 2015 to take into account the wider ecosystem of publications. — Bonus Challenge
Rather than create a separate challenge, we encourage where appropriate submissions to other ESWC2016 challenges to consider also exploring‘s relationship with Linked Data and Semantic Web tools, technologies, vocabularies and datasets.


ESWC 2016 Challenge Chairs
* Stefan Dietze, L3S Research Center, Germany (
* Anna Tordai, Elsevier, Netherlands (

Об авторе Лидия Пивоварова

СПбГУ - старший преподаватель, University of Helsinki - PhD student
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