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Jürgen Umbrich
Jürgen Umbrich
Onlim GmbH, Austria
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YARS2: A federated repository for querying graph structured data from the web
A Harth, J Umbrich, A Hogan, S Decker
The Semantic Web, 211-224, 2007
3952007
SPARQL web-querying infrastructure: ready for action?
C Buil-Aranda, A Hogan, J Umbrich, PY Vandenbussche
International Semantic Web Conference, 277-293, 2013
3132013
Searching and browsing linked data with SWSE: the semantic web search engine
A Hogan, A Harth, J Umbrich, S Kinsella, A Polleres, S Decker
Web Semantics: Science, Services and Agents on the World Wide Web, 2011
2842011
Data summaries for on-demand queries over linked data
A Harth, K Hose, M Karnstedt, A Polleres, KU Sattler, J Umbrich
Proceedings of the 19th international conference on World wide web, 411-420, 2010
2632010
An empirical survey of Linked Data conformance
A Hogan, J Umbrich, A Harth, R Cyganiak, A Polleres, S Decker
246*
Observing linked data dynamics
T Käfer, A Abdelrahman, J Umbrich, P O’Byrne, A Hogan
Extended Semantic Web Conference, 213-227, 2013
1672013
Towards dataset dynamics: Change frequency of linked open data sources
J Umbrich, M Hausenblas, A Hogan, A Polleres, S Decker
CEUR, 2010
1392010
Automated quality assessment of metadata across open data portals
S Neumaier, J Umbrich, A Polleres
Journal of Data and Information Quality (JDIQ) 8 (1), 1-29, 2016
1382016
LDSpider: An open-source crawling framework for the Web of Linked Data
R Isele, J Umbrich, C Bizer, A Harth
9th International Semantic Web Conference (ISWC2010), 2010
1382010
Scalable and distributed methods for entity matching, consolidation and disambiguation over linked data corpora
A Hogan, A Zimmermann, J Umbrich, A Polleres, S Decker
Journal of Web Semantics 10, 76-110, 2012
1212012
Scalable and Distributed Methods for Entity Matching, Consolidation and Disambiguation over Linked Data Corpora
A Hogan, A Zimmermann, J Umbrich, A Polleres, S Decker
Web Semantics: Science, Services and Agents on the World Wide Web, 2011
1212011
Multicrawler: A pipelined architecture for crawling and indexing semantic web data
A Harth, J Umbrich, S Decker
The Semantic Web-ISWC 2006, 258-271, 2006
1142006
Comparison of metadata quality in open data portals using the Analytic Hierarchy Process
S Kubler, J Robert, S Neumaier, J Umbrich, Y Le Traon
Government Information Quarterly 35 (1), 13-29, 2018
1052018
Comparing data summaries for processing live queries over Linked Data
J Umbrich, K Hose, M Karnstedt, A Harth, A Polleres
World Wide Web, 1-50, 2011
1032011
Swse: Answers before links!
A Harth, A Hogan, R Delbru, J Umbrich, S O'Riain, S Decker
CEUR-WS. org, 2007
822007
Knowledge graphs
D Fensel, U Şimşek, K Angele, E Huaman, E Kärle, O Panasiuk, I Toma, ...
Springer International Publishing, 2020
812020
Quality assessment and evolution of open data portals
J Umbrich, S Neumaier, A Polleres
2015 3rd international conference on future internet of things and cloud …, 2015
762015
Querying over Federated SPARQL Endpoints---A State of the Art Survey
NA Rakhmawati, J Umbrich, M Karnstedt, A Hasnain, M Hausenblas
arXiv preprint arXiv:1306.1723, 2013
742013
Some entities are more equal than others: statistical methods to consolidate Linked Data
A Hogan, A Polleres, J Umbrich, A Zimmermann
Proc. NeFoRS, 2010
732010
SPARQLES: Monitoring public SPARQL endpoints
PY Vandenbussche, J Umbrich, L Matteis, A Hogan, C Buil-Aranda
Semantic web 8 (6), 1049-1065, 2017
652017
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Artikelen 1–20