Olaf Hartig

128 papers A* 5A 1B 9C 1Misc 5Journal 32Unranked 47
YearRankTypeTitle / Venue / Authors
2026 B ed.
Cooperative Information Systems - 31st International Conference, CoopIS 2025, Marbella, Spain, October 20-22, 2025, Proceedings
CoopIS
Cinzia Cappiello, Olaf Hartig, Mohamed Sellami, Ali Ouni
2026 J jnl
Query-Specific Pruning of RML Mappings (Extended Version).
CoRR
Sitt Min Oo, Olaf Hartig
2025 J jnl
An Algebraic Foundation for Knowledge Graph Construction (Extended Version).
CoRR
Sitt Min Oo, Olaf Hartig
2025 — conf
An Algebraic Foundation for Knowledge Graph Construction.
ESWC (1)
Sitt Min Oo, Olaf Hartig
2025 J jnl
Exploring Exploratory Querying.
Proc. VLDB Endow.
Marcelo Arenas, Enrico Franconi, Janik Hammerer, Olaf Hartig, Katja Hose, Laura Koesten, George Konstantinidis, Leonid Libkin, Wim Martens, Yuya Sasaki, Stefanie Scherzinger, Katherine Thornton, Hsiang-Yun Wu
2025 — conf
Flexible RML-Based Mapping of Property Graphs to RDF.
EDBT/ICDT Workshops
Ali Elhalawati, Anastasia Dimou, Olaf Hartig, Daniel Hernández
2025 J jnl
Poseidon: A OneGraph Engine.
CoRR
Brad Bebee, Ümit V. Çatalyürek, Olaf Hartig, Ankesh Khandelwal, Simone Rondelli, Michael Schmidt, Lefteris Sidirourgos, Bryan Thompson
2025 J jnl
Towards Computer-Using Personal Agents.
CoRR
Piero A. Bonatti, John Domingue, Anna Lisa Gentile, Andreas Harth, Olaf Hartig, Aidan Hogan, Katja Hose, Ernesto Jiménez-Ruiz, Deborah L. McGuinness, Chang Sun, Ruben Verborgh, Jesse Wright
2024 — conf
Datatypes for Lists and Maps in RDF Literals.
ESWC Satellite Events (1)
Olaf Hartig, Gregory Todd Williams, Michael Schmidt, Ora Lassila, Carlos Manuel López Enríquez, Bryan Thompson
2024 — conf
GRADES-NDA'24: 7th Joint Workshop on Graph Data Management Experiences & Systems (GRADES) and Network Data Analytics (NDA).
SIGMOD Conference Companion
Olaf Hartig, Zoi Kaoudi
2024 J jnl
Ontology-based GraphQL server generation for data access and data integration.
Semantic Web
Huanyu Li, Olaf Hartig, Rickard Armiento, Patrick Lambrix
2024 — ed.
Proceedings of the 7th Joint Workshop on Graph Data Management Experiences & Systems (GRADES) and Network Data Analytics (NDA), Santiago, Chile, 14 June 2024
GRADES/NDA
Olaf Hartig, Zoi Kaoudi
2024 — conf
The Open Circularity Platform: a Decentralized Data Sharing Platform for Circular Value Networks.
KG4S@ESWC
Gertjan De Mulder, Els de Vleeschauwer, Ben De Meester, Pieter Colpaert, Olaf Hartig
2024 — ed.
The Semantic Web - 21st International Conference, ESWC 2024, Hersonissos, Crete, Greece, May 26-30, 2024, Proceedings, Part I
ESWC (1)
Albert Meroño-Peñuela, Anastasia Dimou, Raphaël Troncy, Olaf Hartig, Maribel Acosta, Mehwish Alam, Heiko Paulheim, Pasquale Lisena
2024 — ed.
The Semantic Web - 21st International Conference, ESWC 2024, Hersonissos, Crete, Greece, May 26-30, 2024, Proceedings, Part II
ESWC (2)
Albert Meroño-Peñuela, Anastasia Dimou, Raphaël Troncy, Olaf Hartig, Maribel Acosta, Mehwish Alam, Heiko Paulheim, Pasquale Lisena
2024 J jnl
The materials design ontology.
Semantic Web
Patrick Lambrix, Rickard Armiento, Huanyu Li, Olaf Hartig, Mina Abd Nikooie Pour, Ying Li
2024 J jnl
Transforming Object-Centric Event Logs to Temporal Event Knowledge Graphs (Extended Version).
CoRR
Shahrzad Khayatbashi, Olaf Hartig, Amin Jalali
2024 — conf
Transforming Object-Centric Event Logs to Temporal Event Knowledge Graphs.
Business Process Management Workshops
Shahrzad Khayatbashi, Olaf Hartig, Amin Jalali
2023 — conf
A Cost Model to Optimize Queries over Heterogeneous Federations of RDF Data Sources.
ESWC Workshops
Sijin Cheng, Olaf Hartig
2023 B conf
Considering Vocabulary Mappings in Query Plans for Federations of RDF Data Sources.
CoopIS
Sijin Cheng, Sebastián Ferrada, Olaf Hartig
2023 Misc conf
FedShop: A Benchmark for Testing the Scalability of SPARQL Federation Engines.
ISWC
Minh Hoang Dang, Julien Aimonier-Davat, Pascal Molli, Olaf Hartig, Hala Skaf-Molli, Yotlan Le Crom
2023 — conf
GRADES-NDA'23: 6th Joint Workshop on Graph Data Management Experiences & Systems (GRADES) and Network Data Analytics (NDA).
SIGMOD Conference Companion
Olaf Hartig, Yuichi Yoshida
2023 — ed.
Joint Proceedings of the ESWC 2023 Workshops and Tutorials co-located with 20th European Semantic Web Conference (ESWC 2023), Hersonissos, Greece, May 28-29, 2023.
ESWC Workshops
Mehwish Alam, Cássia Trojahn, Sven Hertling, Catia Pesquita, Christian Aebeloe, Hidir Aras, Amr Azzam, Juan Cano, John Domingue, Simon Gottschalk, Olaf Hartig, Katja Hose, Sabrina Kirrane, Pasquale Lisena, Francesco Osborne, Philipp D. Rohde, Luc Steels, Ruben Taelman, Aisling Third, Ilaria Tiddi, Rima Türker
2023 — conf
OBG-gen: Ontology-Based GraphQL Server Generation for Data Integration.
ISWC (Posters/Demos/Industry)
Huanyu Li, Olaf Hartig, Rickard Armiento, Patrick Lambrix
2023 — conf
Preface.
ESWC Workshops
Christian Aebeloe, Amr Azzam, Olaf Hartig, Katja Hose
2023 — ed.
Proceedings of the 6th Joint Workshop on Graph Data Management Experiences & Systems (GRADES) and Network Data Analytics (NDA), Seattle, WA, USA, 18 June 2023
GRADES-NDA@SIGMOD
Olaf Hartig, Yuichi Yoshida
2023 J jnl
The OneGraph vision: Challenges of breaking the graph model lock-in.
Semantic Web
Ora Lassila, Michael Schmidt, Olaf Hartig, Brad Bebee, Dave Bechberger, Willem Broekema, Ankesh Khandelwal, Kelvin Lawrence, Carlos Manuel López Enríquez, Ronak Sharda, Bryan B. Thompson
2023 A conf
Transforming Event Knowledge Graph to Object-Centric Event Logs: A Comparative Study for Multi-dimensional Process Analysis.
ER
Shahrzad Khayatbashi, Olaf Hartig, Amin Jalali
2023 — conf
Tutorials at The Web Conference 2023.
WWW (Companion Volume)
Valeria Fionda, Olaf Hartig, Reyhaneh Abdolazimi, Sihem Amer-Yahia, Hongzhi Chen, Xiao Chen, Peng Cui, Jeffrey Dalton, Xin Luna Dong, Lisette Espín-Noboa, Wenqi Fan, Manuela Fritz, Quan Gan, Jingtong Gao, Xiaojie Guo, Torsten Hahmann, Jiawei Han, Soyeon Caren Han, Estevam Hruschka, Liang Hu, Jiaxin Huang, Utkarshani Jaimini, Olivier Jeunen, Yushan Jiang, Fariba Karimi, George Karypis, Krishnaram Kenthapadi, Himabindu Lakkaraju, Hady W. Lauw, Thai Le, Trung-Hoang Le, Dongwon Lee, Geon Lee, Liat Levontin, Cheng-Te Li, Haoyang Li, Ying Li, Jay Chiehen Liao, Qidong Liu, Usha Lokala, Ben London, Siqu Long, Hande Küçük-McGinty, Yu Meng, Seungwhan Moon, Usman Naseem, Pradeep Natarajan, Behrooz Omidvar-Tehrani, Zijie Pan, Devesh Parekh, Jian Pei, Tiago Peixoto, Steven Pemberton, Josiah Poon, Filip Radlinski, Federico Rossetto, Kaushik Roy, Aghiles Salah, Mehrnoosh Sameki, Amit P. Sheth, Cogan Shimizu, Kijung Shin, Dongjin Song, Julia Stoyanovich, Dacheng Tao, Johanne R. Trippas, Quoc Truong, Yu-Che Tsai, Adaku Uchendu, Bram van den Akker, Lin Wang, Minjie Wang, Shoujin Wang, Xin Wang, Ingmar Weber, Henry Weld, Lingfei Wu, Da Xu, Yifan Ethan Xu, Shuyuan Xu, Bo Yang, Ke Yang, Elad Yom-Tov, Jaemin Yoo, Zhou Yu, Reza Zafarani, Hamed Zamani, Meike Zehlike, Qi Zhang, Xikun Zhang, Yongfeng Zhang, Yu Zhang, Zheng Zhang, Liang Zhao, Xiangyu Zhao, Wenwu Zhu
2022 J jnl
Assessing the Solid Protocol in Relation to Security & Privacy Obligations.
CoRR
Christian Esposito, Olaf Hartig, Ross Horne, Chang Sun
2022 — conf
Converting property graphs to RDF: a preliminary study of the practical impact of different mappings.
GRADES-NDA@SIGMOD
Shahrzad Khayatbashi, Sebastián Ferrada, Olaf Hartig
2022 J jnl
LinGBM: A Performance Benchmark for Approaches to Build GraphQL Servers (Extended Version).
CoRR
Sijin Cheng, Olaf Hartig
2022 B conf
LinGBM: A Performance Benchmark for Approaches to Build GraphQL Servers.
WISE
Sijin Cheng, Olaf Hartig
2022 — ed.
Proceedings of the Doctoral Consortium at ISWC 2022 co-located with 21st International Semantic Web Conference (ISWC 2022), Hangzhou, China, October 24, 2022.
DC@ISWC
Olaf Hartig, Oshani Seneviratne
2022 — conf
Source Selection for SPARQL Endpoints: Fit for Heterogeneous Federations of RDF Data Sources?
QuWeDa@ISWC
Sijin Cheng, Olaf Hartig
2022 — conf
Towards Query Processing over Heterogeneous Federations of RDF Data Sources.
ESWC (Satellite Events)
Sijin Cheng, Olaf Hartig
2021 — ed.
New Trends in Database and Information Systems - ADBIS 2021 Short Papers, Doctoral Consortium and Workshops: DOING, SIMPDA, MADEISD, MegaData, CAoNS, Tartu, Estonia, August 24-26, 2021, Proceedings
ADBIS (Short Papers)
Ladjel Bellatreche, Marlon Dumas, Panagiotis Karras, Raimundas Matulevicius, Ahmed Awad, Matthias Weidlich, Mirjana Ivanovic, Olaf Hartig
2021 Misc conf
Optimizing RDF Stream Processing for Uncertainty Management.
SEMANTiCS
Robin Keskisärkkä, Eva Blomqvist, Olaf Hartig
2021 J jnl
The future is big graphs: a community view on graph processing systems.
Commun. ACM
Sherif Sakr, Angela Bonifati, Hannes Voigt, Alexandru Iosup, Khaled Ammar, Renzo Angles, Walid G. Aref, Marcelo Arenas, Maciej Besta, Peter A. Boncz, Khuzaima Daudjee, Emanuele Della Valle, Stefania Dumbrava, Olaf Hartig, Bernhard Haslhofer, Tim Hegeman, Jan Hidders, Katja Hose, Adriana Iamnitchi, Vasiliki Kalavri, Hugo Kapp, Wim Martens, M. Tamer Özsu, Eric Peukert, Stefan Plantikow, Mohamed Ragab, Matei Ripeanu, Semih Salihoglu, Christian Schulz, Petra Selmer, Juan F. Sequeda, Joshua Shinavier, Gábor Szárnyas, Riccardo Tommasini, Antonino Tumeo, Alexandru Uta, Ana Lucia Varbanescu, Hsiang-Yun Wu, Nikolay Yakovets, Da Yan, Eiko Yoneki
2020 B conf
Capturing and Querying Uncertainty in RDF Stream Processing.
EKAW
Robin Keskisärkkä, Eva Blomqvist, Leili Lind, Olaf Hartig
2020 J jnl
FedQPL: A Language for Logical Query Plans over Heterogeneous Federations of RDF Data Sources (Extended Version).
CoRR
Sijin Cheng, Olaf Hartig
2020 C conf
FedQPL: A Language for Logical Query Plans over Heterogeneous Federations of RDF Data Sources.
iiWAS
Sijin Cheng, Olaf Hartig
2020 J jnl
The Future is Big Graphs! A Community View on Graph Processing Systems.
CoRR
Sherif Sakr, Angela Bonifati, Hannes Voigt, Alexandru Iosup, Khaled Ammar, Renzo Angles, Walid G. Aref, Marcelo Arenas, Maciej Besta, Peter A. Boncz, Khuzaima Daudjee, Emanuele Della Valle, Stefania Dumbrava, Olaf Hartig, Bernhard Haslhofer, Tim Hegeman, Jan Hidders, Katja Hose, Adriana Iamnitchi, Vasiliki Kalavri, Hugo Kapp, Wim Martens, M. Tamer Özsu, Eric Peukert, Stefan Plantikow, Mohamed Ragab, Matei Ripeanu, Semih Salihoglu, Christian Schulz, Petra Selmer, Juan F. Sequeda, Joshua Shinavier, Gábor Szárnyas, Riccardo Tommasini, Antonino Tumeo, Alexandru Uta, Ana Lucia Varbanescu, Hsiang-Yun Wu, Nikolay Yakovets, Da Yan, Eiko Yoneki
2020 — ed.
The Semantic Web: ESWC 2020 Satellite Events - ESWC 2020 Satellite Events, Heraklion, Crete, Greece, May 31 - June 4, 2020, Revised Selected Papers
ESWC (Satellite Events)
Andreas Harth, Valentina Presutti, Raphaël Troncy, Maribel Acosta, Axel Polleres, Javier D. Fernández, Josiane Xavier Parreira, Olaf Hartig, Katja Hose, Michael Cochez
2019 — conf
An Empirical Analysis of GraphQL API Schemas in Open Code Repositories and Package Registries.
AMW
Yun Wan Kim, Mariano P. Consens, Olaf Hartig
2019 — conf
Defining Schemas for Property Graphs by using the GraphQL Schema Definition Language.
GRADES/NDA@SIGMOD/PODS
Olaf Hartig, Jan Hidders
2019 — ch.
Federated RDF Query Processing.
Encyclopedia of Big Data Technologies
Maribel Acosta, Olaf Hartig, Juan F. Sequeda
2019 — conf
Foundations to Query Labeled Property Graphs using SPARQL.
SEM4TRA-AMAR@SEMANTiCS
Olaf Hartig
2019 — ch.
Linked Data Management.
Encyclopedia of Big Data Technologies
Olaf Hartig, Katja Hose, Juan F. Sequeda
2019 J jnl
OPT+: A Monotonic Alternativeto OPTIONAL in SPARQL.
J. Web Eng.
Sijin Cheng, Olaf Hartig
2019 Misc conf
RSP-QL $$^{\star }\!$$ : Enabling Statement-Level Annotations in RDF Streams.
SEMANTiCS
Robin Keskisärkkä, Eva Blomqvist, Leili Lind, Olaf Hartig
2019 — ed.
The Semantic Web - ISWC 2019 - 18th International Semantic Web Conference, Auckland, New Zealand, October 26-30, 2019, Proceedings, Part I
ISWC (1)
Chiara Ghidini, Olaf Hartig, Maria Maleshkova, Vojtech Svátek, Isabel F. Cruz, Aidan Hogan, Jie Song, Maxime Lefrançois, Fabien Gandon
2019 — ed.
The Semantic Web - ISWC 2019 - 18th International Semantic Web Conference, Auckland, New Zealand, October 26-30, 2019, Proceedings, Part II
ISWC (2)
Chiara Ghidini, Olaf Hartig, Maria Maleshkova, Vojtech Svátek, Isabel F. Cruz, Aidan Hogan, Jie Song, Maxime Lefrançois, Fabien Gandon
2019 — ed.
The Semantic Web: ESWC 2019 Satellite Events - ESWC 2019 Satellite Events, Portorož, Slovenia, June 2-6, 2019, Revised Selected Papers
ESWC (Satellite Events)
Pascal Hitzler, Sabrina Kirrane, Olaf Hartig, Victor de Boer, Maria-Esther Vidal, Maria Maleshkova, Stefan Schlobach, Karl Hammar, Nelia Lasierra, Steffen Stadtmüller, Katja Hose, Ruben Verborgh
2018 A* conf
A Model of Distributed Query Computation in Client-Server Scenarios on the Semantic Web.
IJCAI
Olaf Hartig, Ian Letter, Jorge Pérez
2018 Misc conf
CostFed: Cost-Based Query Optimization for SPARQL Endpoint Federation.
SEMANTiCS
Muhammad Saleem, Alexander Potocki, Tommaso Soru, Olaf Hartig, Axel-Cyrille Ngonga Ngomo
2018 — ed.
Proceedings of the 3rd International Workshop on Geospatial Linked Data and the 2nd Workshop on Querying the Web of Data co-located with 15th Extended Semantic Web Conference (ESWC 2018), Heraklion, Greece, June 3, 2018.
GeoLD-QuWeDa@ESWC
Matthias Wauer, Mohamed Ahmed Sherif, Muhammad Saleem, Olaf Hartig, Ricardo Usbeck, Ruben Verborgh, Axel-Cyrille Ngonga Ngomo
2018 A* conf
Semantics and Complexity of GraphQL.
WWW
Olaf Hartig, Jorge Pérez
2017 — conf
A Formal Framework for Comparing Linked Data Fragments.
ISWC (1)
Olaf Hartig, Ian Letter, Jorge Pérez
2017 — conf
An Initial Analysis of Facebook's GraphQL Language.
AMW
Olaf Hartig, Jorge Pérez
2017 — conf
Federated SPARQL Query Processing Via CostFed.
ISWC (Posters, Demos & Industry Tracks)
Alexander Potocki, Muhammad Saleem, Tommaso Soru, Olaf Hartig, Martin Voigt, Axel-Cyrille Ngonga Ngomo
2017 J jnl
Federated Semantic Data Management (Dagstuhl Seminar 17262).
Dagstuhl Reports
Olaf Hartig, Maria-Esther Vidal, Johann-Christoph Freytag
2017 — conf
Foundations of RDF⋆ and SPARQL⋆ (An Alternative Approach to Statement-Level Metadata in RDF).
AMW
Olaf Hartig
2017 — conf
RDF* and SPARQL*: An Alternative Approach to Annotate Statements in RDF.
ISWC (Posters, Demos & Industry Tracks)
Olaf Hartig
2017 J jnl
SPARQL with property paths on the Web.
Semantic Web
Olaf Hartig, Giuseppe Pirrò
2017 — conf
Semantic Data Management in Practice.
WWW (Companion Volume)
Olaf Hartig, Olivier Curé
2017 — ed.
The Semantic Web - 14th International Conference, ESWC 2017, Portorož, Slovenia, May 28 - June 1, 2017, Proceedings, Part I
ESWC (1)
Eva Blomqvist, Diana Maynard, Aldo Gangemi, Rinke Hoekstra, Pascal Hitzler, Olaf Hartig
2017 — ed.
The Semantic Web - 14th International Conference, ESWC 2017, Portorož, Slovenia, May 28 - June 1, 2017, Proceedings, Part II
ESWC (2)
Eva Blomqvist, Diana Maynard, Aldo Gangemi, Rinke Hoekstra, Pascal Hitzler, Olaf Hartig
2017 — ed.
The Semantic Web: ESWC 2017 Satellite Events - ESWC 2017 Satellite Events, Portorož, Slovenia, May 28 - June 1, 2017, Revised Selected Papers
ESWC (Satellite Events)
Eva Blomqvist, Katja Hose, Heiko Paulheim, Agnieszka Lawrynowicz, Fabio Ciravegna, Olaf Hartig
2016 — conf
Bindings-Restricted Triple Pattern Fragments.
OTM Conferences
Olaf Hartig, Carlos Buil-Aranda
2016 J jnl
LDQL: A query language for the Web of Linked Data.
J. Web Semant.
Olaf Hartig, Jorge Pérez
2016 — ed.
Proceedings of the 7th International Workshop on Consuming Linked Data co-located with 15th International Semantic Web Conference, COLD@ISWC 2016, Kobe, Japan, October 18, 2016.
COLD@ISWC
Olaf Hartig, Juan F. Sequeda, Aidan Hogan
2016 — book
Querying a Web of Linked Data - Foundations and Query Execution
Olaf Hartig
2016 — conf
Reducing the Network Load of Triple Pattern Fragments by Supporting Bind Joins.
ISWC (Posters & Demos)
Olaf Hartig, Carlos Buil-Aranda
2016 J jnl
Scheduling Refresh Queries for Keeping Results from a SPARQL Endpoint Up-to-Date (Extended Version).
CoRR
Magnus Knuth, Olaf Hartig, Harald Sack
2016 — conf
Scheduling Refresh Queries for Keeping Results from a SPARQL Endpoint Up-to-Date (Short Paper).
OTM Conferences
Magnus Knuth, Olaf Hartig, Harald Sack
2016 J jnl
Triple Pattern Fragments: A low-cost knowledge graph interface for the Web.
J. Web Semant.
Ruben Verborgh, Miel Vander Sande, Olaf Hartig, Joachim Van Herwegen, Laurens De Vocht, Ben De Meester, Gerald Haesendonck, Pieter Colpaert
2016 — conf
Walking Without a Map: Ranking-Based Traversal for Querying Linked Data.
ISWC (1)
Olaf Hartig, M. Tamer Özsu
2016 J jnl
Walking without a Map: Optimizing Response Times of Traversal-Based Linked Data Queries (Extended Version).
CoRR
Olaf Hartig, M. Tamer Özsu
2016 J jnl
brTPF: Bindings-Restricted Triple Pattern Fragments (Extended Preprint).
CoRR
Olaf Hartig, Carlos Buil-Aranda
2015 B conf
A Context-Based Semantics for SPARQL Property Paths Over the Web.
ESWC
Olaf Hartig, Giuseppe Pirrò
2015 J jnl
A Context-Based Semantics for SPARQL Property Paths over the Web (Extended Version).
CoRR
Olaf Hartig, Giuseppe Pirrò
2015 A* conf
Executing queries over schemaless RDF databases.
ICDE
Günes Aluç, M. Tamer Özsu, Khuzaima Daudjee, Olaf Hartig
2015 — conf
LDQL: A Language for Linked Data Queries.
AMW
Olaf Hartig
2015 J jnl
LDQL: A Query Language for the Web of Linked Data (Extended Version).
CoRR
Olaf Hartig, Jorge Pérez
2015 — conf
LDQL: A Query Language for the Web of Linked Data.
ISWC (1)
Olaf Hartig, Jorge Pérez
2015 — ed.
Proceedings of the 6th International Workshop on Consuming Linked Data (COLD 2015) co-located with 14th International Semantic Web Conference (ISWC 2015), Bethlehem, PA, USA, October 12th, 2015.
COLD
Olaf Hartig, Juan F. Sequeda, Aidan Hogan
2014 — conf
Diversified Stress Testing of RDF Data Management Systems.
ISWC (1)
Günes Aluç, Olaf Hartig, M. Tamer Özsu, Khuzaima Daudjee
2014 J jnl
Foundations of an Alternative Approach to Reification in RDF.
CoRR
Olaf Hartig, Bryan Thompson
2014 — ch.
Linked Data Query Processing Based on Link Traversal.
Linked Data Management
Olaf Hartig
2014 A* conf
Linked Data query processing.
ICDE
Olaf Hartig, M. Tamer Özsu
2014 — conf
Low-Cost Queryable Linked Data through Triple Pattern Fragments.
ISWC (Posters & Demos)
Ruben Verborgh, Olaf Hartig, Ben De Meester, Gerald Haesendonck, Laurens De Vocht, Miel Vander Sande, Richard Cyganiak, Pieter Colpaert, Erik Mannens, Rik Van de Walle
2014 — conf
Overview of METHOD 2014: the 3rd International Workshop on Methods for Establishing Trust of (Open) Data.
URSW
Tom De Nies, Davide Ceolin, Paul Groth, Olaf Hartig, Stephen Marsh
2014 — ed.
Proceedings of the 10th International Workshop on Uncertainty Reasoning for the Semantic Web (URSW 2014) co-located with the 13th International Semantic Web Conference (ISWC 2014), Riva del Garda, Italy, October 19, 2014.
URSW
Fernando Bobillo, Rommel N. Carvalho, Davide Ceolin, Paulo Cesar G. da Costa, Claudia d'Amato, Nicola Fanizzi, Kathryn B. Laskey, Kenneth J. Laskey, Thomas Lukasiewicz, Trevor P. Martin, Matthias Nickles, Michael Pool, Tom De Nies, Olaf Hartig, Paul Groth, Stephen Marsh
2014 — ed.
Proceedings of the 5th International Workshop on Consuming Linked Data (COLD 2014) co-located with the 13th International Semantic Web Conference (ISWC 2014), Riva del Garda, Italy, October 20, 2014.
COLD
Olaf Hartig, Aidan Hogan, Juan F. Sequeda
2014 — conf
Querying Datasets on the Web with High Availability.
ISWC (1)
Ruben Verborgh, Olaf Hartig, Ben De Meester, Gerald Haesendonck, Laurens De Vocht, Miel Vander Sande, Richard Cyganiak, Pieter Colpaert, Erik Mannens, Rik Van de Walle
2014 — —
Querying a Web of Linked Data.
Olaf Hartig
2014 J jnl
Querying a web of linked data: foundations and query execution.
SIGWEB Newsl.
Olaf Hartig
2014 — conf
Reachable subwebs for traversal-based query execution.
WWW (Companion Volume)
Olaf Hartig, M. Tamer Özsu
2014 J jnl
Reconciliation of RDF* and Property Graphs.
CoRR
Olaf Hartig
2013 J jnl
An Overview on Execution Strategies for Linked Data Queries.
Datenbank-Spektrum
Olaf Hartig
2013 — ed.
Proceedings of the Fourth International Workshop on Consuming Linked Data, COLD 2013, Sydney, Australia, October 22, 2013
COLD
Olaf Hartig, Juan F. Sequeda, Aidan Hogan, Takahide Matsutsuka
2013 — conf
SQUIN: a traversal based query execution system for the web of linked data.
SIGMOD Conference
Olaf Hartig
2012 B conf
An Introduction to SPARQL and Queries over Linked Data.
ICWE
Olaf Hartig
2012 — conf
Foundations of traversal based query execution over linked data.
HT
Olaf Hartig, Johann-Christoph Freytag
2012 — conf
Populating personal linked data caches using context models.
WWW (Companion Volume)
Olaf Hartig, Tom Heath
2012 — ed.
Proceedings of the Third International Workshop on Consuming Linked Data, COLD 2012, Boston, MA, USA, November 12, 2012
COLD
Juan F. Sequeda, Andreas Harth, Olaf Hartig
2012 — conf
Query prediction with context models for populating personal linked data caches.
HT
Olaf Hartig, Tom Heath
2012 J jnl
SPARQL for a Web of Linked Data: Semantics and Computability (Extended Version)
CoRR
Olaf Hartig
2012 B conf
SPARQL for a Web of Linked Data: Semantics and Computability.
ESWC
Olaf Hartig
2012 — conf
Towards Interoperable Provenance Publication on the Linked Data Web.
LDOW
Jun Zhao, Olaf Hartig
2011 — conf
A Main Memory Index Structure to Query Linked Data.
LDOW
Olaf Hartig, Frank Huber
2011 J jnl
Foundations of Traversal Based Query Execution over Linked Data (Extended Version)
CoRR
Olaf Hartig, Johann Christoph Freytag
2011 — conf
How Caching Improves Efficiency and Result Completeness for Querying Linked Data.
LDOW
Olaf Hartig
2011 — ed.
Proceedings of the Second International Workshop on Consuming Linked Data (COLD2011), Bonn, Germany, October 23, 2011
COLD
Olaf Hartig, Andreas Harth, Juan F. Sequeda
2011 J jnl
Towards a Query Language for the Web of Data (A Vision Paper)
CoRR
Juan F. Sequeda, Olaf Hartig
2011 — conf
Zero-Knowledge Query Planning for an Iterator Implementation of Link Traversal Based Query Execution.
ESWC (1)
Olaf Hartig
2010 J jnl
A Database Perspective on Consuming Linked Data on the Web.
Datenbank-Spektrum
Olaf Hartig, Andreas Langegger
2010 A* conf
How to consume linked data on the web: tutorial description.
WWW
Olaf Hartig, Juan F. Sequeda, Jamie Taylor, Patrick Sinclair
2010 — ed.
Proceedings of the First International Workshop on Consuming Linked Data (COLD 2010), Shanghai, China, November 8, 2010
COLD
Olaf Hartig, Andreas Harth, Juan F. Sequeda
2010 — conf
Publishing and Consuming Provenance Metadata on the Web of Linked Data.
IPAW
Olaf Hartig, Jun Zhao
2009 Misc conf
Executing SPARQL Queries over the Web of Linked Data.
ISWC
Olaf Hartig, Christian Bizer, Johann Christoph Freytag
2009 — conf
Linked Data for Building a Map of Researchers.
SFSW@ESWC
Olaf Hartig, Hannes Mühleisen, Johann-Christoph Freytag
2009 — conf
Provenance Information in the Web of Data.
LDOW
Olaf Hartig
2009 B conf
Querying Trust in RDF Data with tSPARQL.
ESWC
Olaf Hartig
2009 — conf
Using Web Data Provenance for Quality Assessment.
SWPM
Olaf Hartig, Jun Zhao
2008 — conf
Designing Component-Based Semantic Web Applications with DESWAP.
ISWC (Posters & Demos)
Olaf Hartig, Martin Kost, Johann Christoph Freytag
2007 B conf
The SPARQL Query Graph Model for Query Optimization.
ESWC
Olaf Hartig, Ralf Heese