Open Data Portal Watch

The Open Data Portal Watch framework is a scalable quality assessment and evolution monitoring framework for Open Data (Web) portals. We harvest the metadata of these catalogs and assess the quality along different dimensions. The source code of this framework is released under the GPL-3.0 license.

Publications

Reference Paper

Automated Quality Assessment of Metadata across Open Data Portals
Neumaier, Sebastian and Umbrich, Jürgen and Polleres, Axel

In ACM Journal of Data and Information Quality (JDIQ), 2016.

journal2016

Metadata Enrichment & Semantic Labelling

Lifting data portals to the Web of Data
Sebastian Neumaier, Jürgen Umbrich, and Axel Polleres

In WWW2017 Workshop on Linked Data on the Web (LDOW2017), Perth, Australia, April 2017.

workshop2017
Multi-level semantic labelling of numerical values
Sebastian Neumaier, Jürgen Umbrich, Josiane Xavier Parreira, and Axel Polleres

In Proceedings of the 15th International Semantic Web Conference (ISWC 2016), Kobe, Japan, October 2016.

conference2016

Quality Assessment & Comparison

Comparison of metadata quality in open data portals using the Analytic Hierarchy Process
Sylvain Kubler, Jérérmy Robert, Sebastian Neumaier, Jürgen Umbrich, and Yves Le Traon

In Government Information Quarterly (GIQ), Elsevier, 2017.

journal2017
Measures for assessing the data freshness in Open Data portals
Neumaier, Sebastian and Umbrich, Jürgen

In 2nd International Conference on Open and Big Data, Vienna, Austria, August 2016.

conference2016
Open Data Portal Quality Comparison using AHP
Kubler, Sylvain and Robert, Jérémy and Le Traon, Yves and Umbrich, Jürgen and Neumaier, Sebastian

In Proceedings of the 17th International Digital Government Research Conference on Digital Government Research, 2016.

conference2016
Quality assessment & evolution of open data portals
Jürgen Umbrich, Sebastian Neumaier, and Axel Polleres

In IEEE International Conference on Open and Big Data, Rome, Italy, August 2015.

conference2015
Towards assessing the quality evolution of open data portals
Jürgen Umbrich, Sebastian Neumaier, and Axel Polleres

In ODQ2015: Open Data Quality: from Theory to Practice Workshop, Munich, Germany, March 2015

workshop2015

Team & Contribution

Team

Sebastian Neumaier
Personal Site
Jürgen Umbrich
Axel Polleres
Personal Site

Additional Contributions

Daniel Huber
Contribution to the development of the UI
Matthias Blaim
Investigation of heuristics to identify and map licenses (part of a bachelor thesis)

Contact

Please feel free to contact us directly at contact (at) data.wu.ac.at.