Jürgen Umbrich

67 papers A* 2B 4Misc 4Journal 16Unranked 36

Year	Rank	Type	Title / Venue / Authors
2023	J	`jnl`	A Knowledge Graph Perspective on Knowledge Engineering. SN Comput. Sci. Umutcan Simsek, Elias Kärle, Kevin Angele, Elwin Huaman, Juliette Opdenplatz, Dennis Sommer, Jürgen Umbrich, Dieter Fensel
2021	—	`conf`	Knowledge Graph Lifecycle: Building and Maintaining Knowledge Graphs. KGCW@ESWC Umutcan Simsek, Kevin Angele, Elias Kärle, Juliette Opdenplatz, Dennis Sommer, Jürgen Umbrich, Dieter Fensel
2020	—	`book`	Knowledge Graphs - Methodology, Tools and Selected Use Cases Dieter Fensel, Umutcan Simsek, Kevin Angele, Elwin Huaman, Elias Kärle, Oleksandra Panasiuk, Ioan Toma, Jürgen Umbrich, Alexander Wahler
2020	—	`conf`	Towards a Knowledge Graph Lifecycle: A pipeline for the population of a commercial Knowledge Graph. Qurator Umutcan Simsek, Jürgen Umbrich, Dieter Fensel
2019	J	`jnl`	Evaluating query and storage strategies for RDF archives. Semantic Web Javier D. Fernández, Jürgen Umbrich, Axel Polleres, Magnus Knuth
2019	J	`jnl`	Managing the evolution and preservation of the data web. J. Web Semant. Jeremy Debattista, Javier D. Fernández, Maria-Esther Vidal, Jürgen Umbrich
2018	J	`jnl`	Comparison of metadata quality in open data portals using the Analytic Hierarchy Process. Gov. Inf. Q. Sylvain Kubler, Jérémy Robert, Sebastian Neumaier, Jürgen Umbrich, Yves Le Traon
2018	J	`jnl`	Editorial: Special issue on quality management of Semantic Web assets (data, services and systems). Semantic Web Amrapali Zaveri, Dimitris Kontokostas, Sebastian Hellmann, Jürgen Umbrich
2017	Misc	`conf`	Counting to k or how SPARQL1.1 Property Paths Can Be Extended to Top-k Path Queries. SEMANTiCS Vadim Savenkov, Qaiser Mehmood, Jürgen Umbrich, Axel Polleres
2017	—	`conf`	Data Integration for Open Data on the Web. RW Sebastian Neumaier, Axel Polleres, Simon Steyskal, Jürgen Umbrich
2017	—	`ed.`	Joint proceedings of the 3rd Workshop on Managing the Evolution and Preservation of the Data Web (MEPDaW 2017) and the 4th Workshop on Linked Data Quality (LDQ 2017) co-located with 14th European Semantic Web Conference (ESWC 2017), Portorož, Slovenia, May 28th-29th, 2017. MEPDaW/LDQ@ESWC Jeremy Debattista, Jürgen Umbrich, Javier D. Fernández, Anisa Rula, Amrapali Zaveri, Anastasia Dimou, Wouter Beek
2017	—	`conf`	Lifting Data Portals to the Web of Data. LDOW@WWW Sebastian Neumaier, Jürgen Umbrich, Axel Polleres
2017	—	`conf`	Open Data Hopes and Fears: Determining the Barriers of Open Data. CeDEM Martin Beno, Kathrin Figl, Jürgen Umbrich, Axel Polleres
2017	J	`jnl`	SPARQLES: Monitoring public SPARQL endpoints. Semantic Web Pierre-Yves Vandenbussche, Jürgen Umbrich, Luca Matteis, Aidan Hogan, Carlos Buil-Aranda
2016	J	`jnl`	Automated Quality Assessment of Metadata across Open Data Portals. ACM J. Data Inf. Qual. Sebastian Neumaier, Jürgen Umbrich, Axel Polleres
2016	—	`conf`	Characteristics of Open Data CSV Files. OBD Johann Mitlöhner, Sebastian Neumaier, Jürgen Umbrich, Axel Polleres
2016	Misc	`conf`	Evaluating Query and Storage Strategies for RDF Archives. SEMANTiCS Javier D. Fernández, Jürgen Umbrich, Axel Polleres, Magnus Knuth
2016	—	`ed.`	Joint Proceedings of the 2nd Workshop on Managing the Evolution and Preservation of the Data Web (MEPDaW 2016) and the 3rd Workshop on Linked Data Quality (LDQ 2016) co-located with 13th European Semantic Web Conference (ESWC 2016), Heraklion, Crete, Greece, May 30th, 2016. MEPDaW/LDQ@ESWC Jeremy Debattista, Jürgen Umbrich, Javier D. Fernández, Anisa Rula, Amrapali Zaveri, Magnus Knuth, Dimitris Kontokostas
2016	—	`conf`	Measures for Assessing the Data Freshness in Open Data Portals. OBD Sebastian Neumaier, Jürgen Umbrich
2016	—	`conf`	Multi-level Semantic Labelling of Numerical Values. ISWC (1) Sebastian Neumaier, Jürgen Umbrich, Josiane Xavier Parreira, Axel Polleres
2016	—	`conf`	Open Data Portal Quality Comparison using AHP. DG.O Sylvain Kubler, Jérémy Robert, Yves Le Traon, Jürgen Umbrich, Sebastian Neumaier
2016	J	`jnl`	Report on the 2nd Workshop on Managing the Evolution and Preservation of the Data Web (MEPDaW 2016). SIGIR Forum Jeremy Debattista, Javier D. Fernández, Jürgen Umbrich
2015	J	`jnl`	Link traversal querying for a diverse Web of Data. Semantic Web Jürgen Umbrich, Aidan Hogan, Axel Polleres, Stefan Decker
2015	—	`conf`	Quality Assessment and Evolution of Open Data Portals. FiCloud Jürgen Umbrich, Sebastian Neumaier, Axel Polleres
2015	Misc	`conf`	The DBpedia wayback machine. SEMANTiCS Javier D. Fernández, Patrik Schneider, Jürgen Umbrich
2015	—	`conf`	Towards Efficient Archiving of Dynamic Linked Open Data. DIACRON@ESWC Javier D. Fernández, Axel Polleres, Jürgen Umbrich
2015	—	`conf`	Towards capturing and preserving changes on the Web of Data. DIACRON@ESWC Jürgen Umbrich, Nina Mrzelj, Axel Polleres
2014	—	`ch.`	Index-Based Source Selection and Optimization. Linked Data Management Jürgen Umbrich, Marcel Karnstedt, Axel Polleres, Kai-Uwe Sattler
2014	—	`conf`	Optimizing SPARQL Query Processing on Dynamic and Static Data Based on Query Time/Freshness Requirements Using Materialization. JIST Soheila Dehghanzadeh, Josiane Xavier Parreira, Marcel Karnstedt, Jürgen Umbrich, Manfred Hauswirth, Stefan Decker
2014	—	`conf`	Resource Planning for SPARQL Query Execution on Data Sharing Platforms. COLD Stefan Hagedorn, Katja Hose, Kai-Uwe Sattler, Jürgen Umbrich
2014	J	`jnl`	SPARQL: A Gateway to Open Data on the Web? ERCIM News Pierre-Yves Vandenbussche, Aidan Hogan, Jürgen Umbrich, Carlos Buil-Aranda
2014	—	`conf`	Strategies for Executing Federated Queries in SPARQL1.1. ISWC (2) Carlos Buil-Aranda, Axel Polleres, Jürgen Umbrich
2013	—	`conf`	A Comparison of Federation over SPARQL Endpoints Frameworks. KESW Nur Aini Rakhmawati, Jürgen Umbrich, Marcel Karnstedt, Ali Hasnain, Michael Hausenblas
2013	—	`conf`	Eight Fallacies when querying the Web of Data. ICDE Workshops Jürgen Umbrich, Claudio Gutierrez, Aidan Hogan, Marcel Karnstedt, Josiane Xavier Parreira
2013	—	`conf`	Exploring the Dynamics of Linked Data. ESWC (Satellite Events) Tobias Käfer, Ahmed Abdelrahman, Jürgen Umbrich, Patrick O'Byrne, Aidan Hogan
2013	—	`conf`	Monitoring SPARQL Endpoint Status. ISWC (Posters & Demos) Pierre-Yves Vandenbussche, Carlos Buil-Aranda, Aidan Hogan, Jürgen Umbrich
2013	B	`conf`	Observing Linked Data Dynamics. ESWC Tobias Käfer, Ahmed Abdelrahman, Jürgen Umbrich, Patrick O'Byrne, Aidan Hogan
2013	J	`jnl`	Querying over Federated SPARQL Endpoints - A State of the Art Survey. CoRR Nur Aini Rakhmawati, Jürgen Umbrich, Marcel Karnstedt, Ali Hasnain, Michael Hausenblas
2013	—	`conf`	RDFS and OWL Reasoning for Linked Data. Reasoning Web Axel Polleres, Aidan Hogan, Renaud Delbru, Jürgen Umbrich
2013	—	`conf`	SPARQL Web-Querying Infrastructure: Ready for Action? ISWC (2) Carlos Buil-Aranda, Aidan Hogan, Jürgen Umbrich, Pierre-Yves Vandenbussche
2013	—	`conf`	The ACE theorem for querying the web of data. WWW (Companion Volume) Jürgen Umbrich, Claudio Gutierrez, Aidan Hogan, Marcel Karnstedt, Josiane Xavier Parreira
2012	J	`jnl`	An empirical survey of Linked Data conformance. J. Web Semant. Aidan Hogan, Jürgen Umbrich, Andreas Harth, Richard Cyganiak, Axel Polleres, Stefan Decker
2012	—	`conf`	DyLDO: Towards a Dynamic Linked Data Observatory. LDOW Tobias Käfer, Jürgen Umbrich, Aidan Hogan, Axel Polleres
2012	B	`conf`	Freshening up while Staying Fast: Towards Hybrid SPARQL Queries. EKAW Jürgen Umbrich, Marcel Karnstedt, Aidan Hogan, Josiane Xavier Parreira
2012	—	`conf`	Hybrid SPARQL Queries: Fresh vs. Fast Results. ISWC (1) Jürgen Umbrich, Marcel Karnstedt, Aidan Hogan, Josiane Xavier Parreira
2012	—	`conf`	Improving the Recall of Live Linked Data Querying through Reasoning. RR Jürgen Umbrich, Aidan Hogan, Axel Polleres, Stefan Decker
2012	—	`conf`	Linked Data and Live Querying for Enabling Support Platforms for Web Dataspaces. ICDE Workshops Jürgen Umbrich, Marcel Karnstedt, Josiane Xavier Parreira, Axel Polleres, Manfred Hauswirth
2012	J	`jnl`	Scalable and distributed methods for entity matching, consolidation and disambiguation over linked data corpora. J. Web Semant. Aidan Hogan, Antoine Zimmermann, Jürgen Umbrich, Axel Polleres, Stefan Decker
2012	—	`ch.`	Searching and Browsing Linked Data with SWSE. Semantic Search over the Web Andreas Harth, Aidan Hogan, Jürgen Umbrich, Sheila Kinsella, Axel Polleres, Stefan Decker
2011	J	`jnl`	Comparing data summaries for processing live queries over Linked Data. World Wide Web Jürgen Umbrich, Katja Hose, Marcel Karnstedt, Andreas Harth, Axel Polleres
2011	—	`conf`	Enhancing Source Selection for Live Queries over Linked Data via Query Log Mining. JIST Yuan Tian, Jürgen Umbrich, Yong Yu
2011	J	`jnl`	Improving the recall of decentralised linked data querying through implicit knowledge CoRR Jürgen Umbrich, Aidan Hogan, Axel Polleres
2011	J	`jnl`	Searching and browsing Linked Data with SWSE: The Semantic Web Search Engine. J. Web Semant. Aidan Hogan, Andreas Harth, Jürgen Umbrich, Sheila Kinsella, Axel Polleres, Stefan Decker
2010	A*	`conf`	Data summaries for on-demand queries over linked data. WWW Andreas Harth, Katja Hose, Marcel Karnstedt, Axel Polleres, Kai-Uwe Sattler, Jürgen Umbrich
2010	—	`conf`	Dataset Dynamics Compendium: A Comparative Study. COLD Jürgen Umbrich, Boris Villazón-Terrazas, Michael Hausenblas
2010	—	`conf`	LDspider: An Open-source Crawling Framework for the Web of Linked Data. ISWC (Posters & Demos) Robert Isele, Jürgen Umbrich, Christian Bizer, Andreas Harth
2010	B	`conf`	RaUL: RDFa User Interface Language - A Data Processing Model for Web Applications. WISE Armin Haller, Jürgen Umbrich, Michael Hausenblas
2010	—	`conf`	Towards Dataset Dynamics: Change Frequency of Linked Open Data Sources. LDOW Jürgen Umbrich, Michael Hausenblas, Aidan Hogan, Axel Polleres, Stefan Decker
2010	—	`conf`	Towards Understanding the Changing Web: Mining the Dynamics of Linked-Data Sources and Entities. LWA Jürgen Umbrich, Marcel Karnstedt, Sebastian Land
2009	—	`conf`	DING! Dataset Ranking using Formal Descriptions. LDOW Nickolai Toupikov, Jürgen Umbrich, Renaud Delbru, Michael Hausenblas, Giovanni Tummarello
2009	—	`conf`	Fast and Scalable Pattern Mining for Media-Type Focused Crawling. LWA Jürgen Umbrich, Marcel Karnstedt, Andreas Harth
2008	—	`conf`	Exploring the Knowledge in Semi Structured Data Sets with Rich Queries. SemSearch Jürgen Umbrich, Sebastian Blohm
2008	B	`conf`	Four Heuristics to Guide Structured Content Crawling. ICWE Jürgen Umbrich, Andreas Harth, Aidan Hogan, Stefan Decker
2007	—	`conf`	SWSE: Answers Before Links! Semantic Web Challenge Andreas Harth, Aidan Hogan, Renaud Delbru, Jürgen Umbrich, Seán O'Riain, Stefan Decker
2007	A*	`conf`	Towards a scalable search and query engine for the web. WWW Aidan Hogan, Andreas Harth, Jürgen Umbrich, Stefan Decker
2007	—	`conf`	YARS2: A Federated Repository for Querying Graph Structured Data from the Web. ISWC/ASWC Andreas Harth, Jürgen Umbrich, Aidan Hogan, Stefan Decker
2006	Misc	`conf`	MultiCrawler: A Pipelined Architecture for Crawling and Indexing Semantic Web Data. ISWC Andreas Harth, Jürgen Umbrich, Stefan Decker