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LD4IE Challenge 2014 : 1st Challenge on Linked Data for Information Extraction


When Oct 19, 2014 - Oct 20, 2014
Where Riva del Garda
Submission Deadline Sep 12, 2014
Notification Due Sep 19, 2014
Final Version Due Sep 26, 2014
Categories    linked open data   semantic web   information extraction   machine learning

Call For Papers

Call for Challenge Participation

1st Challenge on Linked Data for Information Extraction
organized in connection with the LD4IE workshop
at ISWC 2014, Riva del Garda, Italy

Submissions due September 12, 2014

*The best solution is awarded a Springer book voucher worth 250€!*

The Linked Data for Information Extraction challenge explores how structured data on web pages can be used to train information extraction systems extracting that information from other sources as well. It is based on a subset of the Web Data Commons Microformats dataset [1].

For the challenge, original annotated pages are provided, as well as the triples extracted from them. Based on that information, participants have to design an information extraction system for extracting that information from other web pages. In this year's challenge, we focus on hCard data [2], i.e., information about persons. The use case of such a system could be the assembly of a large database on person data.

The systems are evaluated on a test set of annotated web pages, from which all annotations have been removed. The participants have to extract triples from those pages and send in their resulting triple files. The submitted files are evaluated against the gold standard of the original triples, ranking the solutions by F-measure.

A short description of each solution is included in the LD4IE workshop proceedings, and presented at the workshop [3].

For more detail on the datasets, tasks, results/paper submission and evaluation, see



Heiko Paulheim, University of Mannheim, Germany
Robert Meusel, University of Mannheim, Germany

Related Resources

LD4IE 2016   CFP: Linked Data for Information Extraction LD4IE2016 - workshop at @ISWC2016
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MLDM 2017   Machine Learning and Data Mining in Pattern Recognition
OKE 2016   OKE2016 - Open Knowledge Extraction Challenge @ESWC2016
IJCAI 2017   International Joint Conference on Artificial Intelligence
DSAA 2017   The 4th IEEE International Conference on Data Science and Advanced Analytics 2017
PAKDD 2017   The 21st Pacific-Asia Conference on Knowledge Discovery and Data Mining
CIKM 2017   The 26th 2017 ACM Conference on Information and Knowledge Management
JWS-VOILA 2016   Special Issue on Visualization and Interaction for Ontologies and Linked Data
ECML-PKDD 2017   European Conference on Machine Learning and Principles and Practice of Knowledge Discovery