LUPOSDATE is Open Source
LUPOSDATE3000 is Open Source
Area Editor des Gebietes "Artificial Intelligence to Fight COVID-19 and Other Pandemics" des New Generation Computing Journals
Prof. Dr. rer.nat. habil. Sven Groppe

- außerplanmäßiger Professor -
Leiter der Arbeitsgruppe Information Systems and Quantum Computing (ISQC)
Institut für Informationssysteme
Universität zu Lübeck
Ratzeburger Allee 160 ( Gebäude 64 - 2.OG, Raum 65 )
D-23562 Lübeck
Telefon: +49 451 3101 5706
Fax : +49 451 3101 5704
email :E-Mail an Sven Groppe
Curriculum Vitae
Ich habe Informatik an der Universität Paderborn studiert und mein Diplom in Informatik (vergleichbar mit Master of Computer Science) im Jahre 2002 erworben. Ich habe meinen Doktortitel im Jahre 2005 von der Universität Paderborn erhalten. Meine Doktorarbeit handelt von der Anfrageumformulierung für die XML Standards XPath, XSLT und XQuery. Danach habe ich an der Universität Innsbruck als Postdoktorand gearbeitet. Seit Februar 2007 bin ich wissenschaftlicher Mitarbeiter am Institut für Informationssysteme an der Universität zu Lübeck und seit 17.06.2019 außerplanmäßiger Professor.
Forschungsinteressen
Meine Forschungsinteressen sind
- Quantum Computing
- Software und Frameworks
- High-Level Quantenprogrammiersprachen inklusive Simulatoren und Optimierungen
- Quantenapplikationen inklusive Beschleunigung von Aufgaben des Datenmanagements
- Datenmanagement in der Cloud, P2P, Web und insbesondere Semantic Web
- Anfrageverarbeitung und -optimierung
- Visuelle Anfragesprachen
- Stromverarbeitung
- Replikation
- Caching
- Komprimierung
- Indexing
- Parallele und Verteilte Datenverarbeitung
- Logische Tester
- Erfüllbarkeitstester
- Teilmengentester
- Schnittmengentester
- Moderne Hardwarearchitekturen wie FPGA, Many-Core-CPU, GPU und Smart SSD
Betreuung
Betreuung von
- internen und externen Doktoranden
- Masterarbeiten
- Bachelorarbeiten
Es findet sich eine recht gute Übersicht über offene Themen in der Präsentation " Information Systems and Quantum Computing (ISQC)" (Folien: HTML, PDF) des Bachelor-/Master-Forums 2022 vom 4.11.2022.
Arbeitsgruppe Information Systems and Quantum Computing (ISQC)
In der Arbeitsgruppe ISQC behandeln wir Themen rund um Big Data und Data Management mit und ohne Hardwarebeschleuniger sowie Tools und Applikationen für das Quantum Computing.
Projekte und wissenschaftliche Mitarbeiter
In den folgenden Abschnitten listen wir die Projekte sowie die zugeordneten Mitarbeiter der Arbeitsgruppe ISQC auf.
Laufende Projekte:
- QC4DB: Accelerating Relational Database Management Systems via Quantum Computing
- QualityOnt: High Quality Knowledge Graphs from recent English, French and German Emergent Trends with the example of COVID-19
- Semantische Datenintegration und -Analyse
- BigSIoT: Big Data Management für das Semantic Internet of Things
- Hybrid^2-Indexstrukturen für Hauptspeicherdatenbanken (Hybrid^2-Index Structures for Main Memory Databasess)
Abgeschlossene Projekte:
- Hardwarebeschleunigung von Semantic Web Datenbanken durch dynamisch rekonfigurierbare FPGAs
- Beschleunigung relationaler Datenbanken mittels laufzeitadaptiver FPGA Cluster (FPGA-Cluster DB); Integration von Hardwarebeschleunigern in Datenbanksysteme
- Logisch und Physikalisch Optimierte Semantic Web Datenbank-Engine (LUPOSDATE)
Publikationen
Die Homepage von Sven Groppe enthält eine komplette Liste meiner Publikationen. Die DBLP-indexierten Publikationen können hier betrachtet werden. Meine Publikationen nach Februar 2007 sind unten aufgelistet:
2023
- Le Gruenwald, Tobias Winker, Umut Çalıkyılmaz, Jinghua Groppe, Sven Groppe: Index Tuning with Machine Learning on Quantum Computers for Large-Scale Database Applications
in: Joint Proceedings of Workshops at the 49th International Conference on Very Large Data Bases (VLDB 2023) - International Workshop on Quantum Data Science and Management (QDSM 23), Vancouver, Canada, 2023 - Valter Uotila, Sven Groppe, Le Gruenwald, Jiaheng Lu, Wolfgang Mauerer: Preface QDSM
in: Joint Proceedings of Workshops at the 49th International Conference on Very Large Data Bases (VLDB 2023) - International Workshop on Quantum Data Science and Management (QDSM 23), Vancouver, Canada, 2023 - Rajesh Bordawekar, Cinzia Cappiello, Vasilis Efthymiou, Lisa Ehrlinger, Vijay Gadepally, Sainyam Galhotra, Sandra Geisler, Sven Groppe, Le Gruenwald, Alon Y. Halevy, Hazar Harmouch, Oktie Hassanzadeh, Ihab F. Ilyas, Ernesto Jimenez-Ruiz, Sanjay Krishnan, Tirthankar Lahiri, Guoliang Li, Jiaheng Lu, Wolfgang Mauerer, Umar Farooq Minhas, Felix Naumann, M. Tamer Özsu, El Kindi Rezig, Kavitha Srinivas, Michael Stonebraker, Satyanarayana R. Valluri, Maria-Esther Vidal, Haixun Wang, Jiannan Wang, Yingjun Wu, Xun Xue, Mohamed Zait, Kai Zeng: Joint Proceedings of Workshops at the 49th International Conference on Very Large Data Bases (VLDB 2023), Vancouver, Canada
in: , 2023, CEUR-WS.org - Umut Çalıkyılmaz, Sven Groppe, Jinghua Groppe, Tobias Winker, Stefan Prestel, Farida Shagieva, Daanish Arya, Florian Preis, Le Gruenwald: Opportunities for Quantum Acceleration of Databases: Optimization of Queries and Transaction Schedules
in: Proc. VLDB Endow., 2023, Vol.16, (9), p.2344-2353 - : Proceedings of the International Workshop on Big Data in Emergent Distributed Environments, BiDEDE 2023, Seattle, WA, USA
in: , 2023, Sven Groppe, Gruenwald, Ching-Hsien Hsu, ACM - Simon Paasche, Sven Groppe: GreenCC: A Hybrid Approach to Sustainably Validate Manufacturing Data in Industry 4.0 Environments
in: Proceedings of the 12th International Conference on Data Science, Technology and Applications (DATA), Rome, Italy, 2023 - Jinghua Groppe, Sven Groppe, Ralf Möller: Variables are a Curse in Software Vulnerability Prediction
in: The 34th International Conference on Database and Expert Systems Applications (DEXA), Panang, Malaysia, 2023 - Simon Paasche, Sven Groppe: Poster: Handling Inconsistent Data in Industry 4.0
in: Proceedings of the 17th ACM International Conference on Distributed and Event-Based Systems (DEBS 23), 2023, Association for Computing Machinery, New York, NY, USA, p.180–181 - Tobias Winker, Sven Groppe, Valter Uotila, Zhengtong Yan, Jiaheng Lu, Maja Franz, Wolfgang Mauerer: Quantum Machine Learning: Foundation, New Techniques, and Opportunities for Database Research
in: Proceedings of ACM SIGMOD/PODS International Conference on Management of Data (SIGMOD), 2023 - Tobias Winker, Umut Çalıkyılmaz, Le Gruenwald, Sven Groppe: Quantum Machine Learning for Join Order Optimization using Variational Quantum Circuits
in: Proceedings of the International Workshop on Big Data in Emergent Distributed Environments (BiDEDE), Seattle, WA, USA, 2023 - Sven Groppe, Le Gruenwald, Ching-Hsien Hsu: Third International Workshop on Big Data in Emergent Distributed Environments (BiDEDE)
in: Companion of the 2023 International Conference on Management of Data (SIGMOD), Seattle, WA, USA, 2023 - Nitin Nayak, Jan Rehfeld, Tobias Winker, Benjamin Warnke, Umut Çalıkyılmaz, Sven Groppe: Constructing Optimal Bushy Join Trees by Solving QUBO Problems on Quantum Hardware and Simulators
in: Proceedings of the International Workshop on Big Data in Emergent Distributed Environments (BiDEDE), Seattle, WA, USA, 2023 - Tobias Groth, Sven Groppe, Thilo Pionteck, Franz Valdiek, Martin Koppehel: Hybrid CPU/GPU/APU accelerated query, insert, update and erase operations in hash tables with string keys
in: Knowledge and Information Systems, 2023, Vol.65, (10), p.4359-4377 - Hanieh Khorashadizadeh, Nandana Mihindukulasooriya, Sanju Tiwari, Jinghua Groppe, Sven Groppe: Exploring In-Context Learning Capabilities of Foundation Models for Generating Knowledge Graphs from Text
in: CoRR, 2023, Vol.abs/2305.08804 - Hanieh Khorashadizadeh, Nandana Mihindukulasooriya, Sanju Tiwari, Jinghua Groppe, Sven Groppe: Exploring In-Context Learning Capabilities of Foundation Models for Generating Knowledge Graphs from Text
in: Proceedings of the 2nd International Workshop on Knowledge Graph Generation From Text (Text2KG) in conjunction with the Extended Semantic Web Conference (ESWC 2023), Hersonissos, Greece, 2023 - Benjamin Warnke, Stefan Fischer, Sven Groppe: Distributed SPARQL Queries in Collaboration with the Routing Protocol
in: Proceedings of the 27th International Database Engineered Applications Symposium (IDEAS), Heraklion, Crete, Greece, 2023 - Sarika Jain, Sven Groppe, Nandana Mihindukulasooriya (Ed.): Proceedings of the International Health Informatics Conference (IHIC) 2022
Springer Nature Singapore, 2023 - Sarika Jain, Sven Groppe, Bharat K. Bhargava (Ed.): Semantic Intelligence
Springer Nature Singapore, 2023 - Sven Groppe: Renewal of the Major Fields of New-Generation Computing
in: New Gener. Comput., 2023, Vol.41, p.1 - 2
2022
- Sarika Jain, Sven Groppe, Nandana Mihindukulasooriya (Ed.): Proceedings of the Workshop on Advances in Computational Intelligence, its Concepts & Applications (ACI 2022) co-located with International Semantic Intelligence Conference (ISIC 2022), Georgia Southern University, Savannah, United States
CEUR-WS.org, 2022, Vol.3283, CEUR Workshop Proceedings - Jinghua Groppe, Rene Schlichting, Sven Groppe, Ralf Möller: Deep Learning-Based Classification of Customer Communications of a German Utility Company
in: International Semantic Intelligence Conference (ISIC 2022), online, 2022 - Julian Hans, Sven Groppe: Silq2Qiskit - Developing a quantum language source-to-source translator
in: Proceedings of the 5th International Conference on Computer Science and Software Engineering (CSSE 2022), 2022 - Sven Groppe, Jinghua Groppe, Umut Çalıkyılmaz, Tobias Winker, Le Gruenwald: Quantum Data Management and Quantum Machine Learning for Data Management: State-of-the-Art and Open Challenges
in: Proceedings of the EAI International Conference on Intelligent Systems and Machine Learning (EAI ICISML 2022), 2022 - Sven Groppe, Sanju Tiwari, Hanieh Khorashadizadeh, Jinghua Groppe, Tobias Groth, Farah Benamara, Soror Sahri: Short Analysis of the Impact of COVID-19 Ontologies
in: International Semantic Intelligence Conference (ISIC 2022), online, 2022 - Hanieh Khorashadizadeh, Sanju Tiwari, Sven Groppe: A Survey on Covid-19 Knowledge Graphs and their Data Sources
in: Proceedings of the EAI International Conference on Intelligent Systems and Machine Learning (EAI ICISML 2022), 2022 - Gurdeep Singh Hura, Sven Groppe, Sarika Jain, Le Gruenwald: Artificial Intelligence in Global Epidemics, Part 2
in: New Generation Computing (NGCO), 2022, Vol.40, (4) - Sven Groppe, Sanju Tiwari, Shui Yu: Contributions to the 6th Workshop on Very Large Internet of Things (VLIoT 2022)
in: Open Journal of Internet Of Things (OJIOT), 2022, Vol.8, (1), p.1-6 - Simon Paasche, Sven Groppe: Generating SPARQL-Constraints for Consistency Checking in Industry 4.0 Scenarios
in: Open Journal of Internet Of Things (OJIOT), 2022, Vol.8, (1), p.80-90 - Tobias Groth, Sven Groppe, Thilo Pionteck, Martin Koppehel, Franz Valdiek: Accelerated Parallel Hybrid GPU/CPU Hash Table Queries with String Keys
in: The 33rd International Conference on Database and Expert Systems Applications (DEXA), Vienna, Austria, 2022, This paper received the NORMAN REVELL Best Paper Award - Sven Groppe, Jinghua Groppe, Tobias Groth: The role of Semantic Hybrid Multi-Model Multi-Platform (SHM3P) Databases for IoT
in: Tools, Languages, Methodologies for Representing Semantics on the Web of Things, Shikha Mehta, Sanju Tiwari, Patrick Siarry, M.A Jabbar (Ed.), ISTE SCIENCE PUBLISHING Ltd, 2022 - Sven Groppe, Le Gruenwald, Ching-Hsien Hsu: BiDEDE 22: Second International Workshop on Big Data in Emergent Distributed Environments
in: Proceedings of the 2022 International Conference on Management of Data (SIGMOD), 2022 - Sven Groppe, Le Gruenwald, Ching-Hsien Hsu (Ed.): BiDEDE 22: Proceedings of the International Workshop on Big Data in Emergent Distributed Environments
Association for Computing Machinery (ACM), 2022 - Simon Paasche, Sven Groppe: Enhancing Data Quality and Process Optimization for Smart Manufacturing Lines in Industry 4.0 Scenarios
in: Proceedings of The International Workshop on Big Data in Emergent Distributed Environments (BiDEDE 22), 2022 - Benjamin Warnke, Johann Mantler, Sven Groppe, Yuri Cotrado Sehgelmeble, Stefan Fischer: A SPARQL Benchmark for Distributed Databases in IoT Environments
in: Proceedings of The International Workshop on Big Data in Emergent Distributed Environments: BiDEDE 22, 2022, Association for Computing Machinery, New York, NY, USA - Benjamin Warnke, Yuri Cotrado Sehgelmeble, Johann Mantler, Sven Groppe, Stefan Fischer: SIMORA: SIMulating Open Routing protocols for Application interoperability on edge devices
in: 2022 IEEE 6th International Conference on Fog and Edge Computing (ICFEC), 2022, May, Taormina (Messina), Italy, p.42-49
2021
- Gurdeep Singh Hura, Sven Groppe, Sarika Jain, Le Gruenwald: Artificial Intelligence in Global Epidemics, Part 1
in: New Generation Computing, 2021, Vol.39, (3-4) - Sven Groppe, Rico Klinckenberg, Benjamin Warnke: Generating Sound from the Processing in Semantic Web Databases
in: Open Journal of Semantic Web (OJSW), 2021, Vol.8, (1), p.1-27 - Martin Koppehel, Tobias Groth, Sven Groppe, Thilo Pionteck: CuART - a CUDA-Based, Scalable Radix-Tree Lookup and Update Engine
in: 50th International Conference on Parallel Processing (ICPP 2021), 2021, Association for Computing Machinery (ACM) - Sven Groppe, Weizhi Meng: Overview of the 2021 Edition of the Workshop on Very Large Internet of Things (VLIoT 2021)
in: Open Journal of Internet Of Things (OJIOT), 2021, Vol.7, (1), p.18-22 - V. Neelanarayanan, V. Vijayakumar, Ron Doyle, Imad Fakhri Taha Alyaseen, Sven Groppe: Special issue on the technologies and applications of big data
in: Wireless Networks, 2021,, Vol.27,, (8,), p.5425-5428 - Le Gruenwald, Sarika Jain, Sven Groppe (Ed.): Leveraging Artificial Intelligence in Global Epidemics
Elsevier, 2021 - Sven Groppe, Rico Klinckenberg, Benjamin Warnke: Sound of Databases: Sonification of a Semantic Web Database Engine
in: Proc. VLDB Endow., 2021, Vol.14, (12), p.2695-2698 - Sven Groppe, Jinghua Groppe: Optimizing Transaction Schedules on Universal Quantum Computers via Code Generation for Grover’s Search Algorithm
in: Proceedings of the 25th International Database Engineering & Applications Symposium (IDEAS), Montreal, QC, Canada, 2021, Association for Computing Machinery (ACM), New York, NY, USA - Sven Groppe, Le Gruenwald, Ching-Hsien Hsu: BiDEDE 21: Proceedings of the International Workshop on Big Data in Emergent Distributed Environments
Association for Computing Machinery (ACM), 2021 - Rafal Lokuciejewski, Dominik Schüssele, Florian Wilhelm, Sven Groppe.: A Platform for Interactive Data Science with Apache Spark for On-premises Infrastructure
in: Proceedings of the 11th International Conference on Cloud Computing and Services Science (CLOSER), 2021, SciTePress, p.65-76 - Sven Groppe, Lina Hartung: Automatically Generating Citation Graphs (and Variants) for Systematic Reviews
in: Open Journal of Information Systems (OJIS), 2021, Vol.8, (1), p.1-25 - Benjamin Warnke, Muhammad Waqas Rehan, Stefan Fischer, Sven Groppe: Flexible data partitioning schemes for parallel merge joins in semantic web queries
in: Datenbanksysteme für Business, Technologie und Web (BTW), 19. Fachtagung des GI-Fachbereichs Datenbanken und Informationssysteme, Dresden, Germany, 2021, Gesellschaft für Informatik, Bonn, LNI, Vol.P-311, this publication received the label Results Reproduced, p.237-256 - Sven Groppe: Semantic Hybrid Multi-Model Multi-Platform (SHM3P) Databases
in: International Semantic Intelligence Conference (ISIC 2021), New Delhi (hybrid), India, 2021, CEUR, p.16-26 - Sarika Jain, Sven Groppe: Proceedings of the International Semantic Intelligence Conference (ISIC), New Delhi (hybrid), India
CEUR, 2021
2020
- Sven Groppe, Lina Hartung: ReViz: A Tool for Automatically Generating Citation Graphs and Variants
in: International Conference on Asian Digital Libraries (ICADL): Digital Libraries at Times of Massive Societal Transition,, 2020, online, p.107-121 - Tim Bittner, Sven Groppe: Hardware Accelerating the Optimization of Transaction Schedules via Quantum Annealing by Avoiding Blocking
in: Open Journal of Cloud Computing (OJCC), 2020, Vol.7, (1), p.1-21 - Dennis Heinrich, Stefan Werner, Christopher Blochwitz, Thilo Pionteck, Sven Groppe: Hardware-aided update acceleration in a hybrid Semantic Web database system
in: The Journal of Supercomputing, 2020, Vol.76, (10), p.7961-7984 - Sven Groppe, Mu-Chun Su: Due to COVID-19 the World s Activities Stopped, but not Research: Workshop on Very Large Internet of Things (VLIoT 2020)
in: Open Journal of Internet Of Things (OJIOT), 2020, Vol.6, (1), p.1-5 - Tim Bittner, Sven Groppe: Avoiding Blocking by Scheduling Transactions Using Quantum Annealing
in: Proceedings of the 24th Symposium on International Database Engineering & Applications (IDEAS), Seoul, Republic of Korea (virtual due to Covid-19 pandemic), 2020, Association for Computing Machinery (ACM), New York, NY, USA - Tobias Groth, Sven Groppe, Martin Koppehel, Thilo Pionteck: Parallelizing Approximate Search on Adaptive Radix Trees
in: Proceedings of the 28th Italian Symposium on Advanced Database Systems, Villasimius, Sud Sardegna, Italy (virtual due to Covid-19 pandemic), 2020, p.56-67 - Sven Groppe, Le Gruenwald, Valentina Presutti: SBD 20: Proceedings of the International Workshop on Semantic Big Data, SBD@SIGMOD 2020
ACM, 2020, June, New York, NY, USA - Sven Groppe, Jinghua Groppe: Hybrid Multi-Model Multi-Platform (HM3P) Databases
in: Proceedings of the 9th International Conference on Data Science, Technology and Applications (DATA), 2020 - Sven Groppe: Emergent models, frameworks, and hardware technologies for Big data analytics
in: The Journal of Supercomputing, 2020, Vol.76, (3), p.1800-1827
2019
- Sven Groppe, Niklas Reimer: Code Generation for Big Data Processing in the Web using WebAssembly
in: Open Journal of Cloud Computing (OJCC), 2019, Vol.6, (1), p.1-15 - Sven Groppe, Ian Pösse: Multi-Game Code-Duel for Learning Programming Languages
in: Open Journal of Information Systems (OJIS), 2019, Vol.6, (1), p.1-23 - Markus Endler, Sven Groppe: Editorial of the 2019 Workshop on Very Large Internet of Things (VLIoT)
in: OJIOT, 2019, Vol.5, (1), p.1-5 - Vijayakumar Varadarajan, Venkataraman Neelanarayanan, Ron Doyle, Imad Fakhri Al-Shaikhli, Sven Groppe: Editorial: Mobile Networks in the Era of Big Data
in: Mobile Networks and Applications, 2019, Vol.24, (4), p.1135–-1138 - Sven Groppe, Le Gruenwald: SBD 19: Fourth Edition of the International Workshop on Semantic Big Data
in: Proceedings of the 2019 International Conference on Management of Data (SIGMOD), 2019, ACM, SIGMOD 19, p.2075-2076 - Sven Groppe, Le Gruenwald: SBD 19: Proceedings of the International Workshop on Semantic Big Data, SBD@SIGMOD 2019
ACM, 2019, May, New York, NY, USA - Vijayakumar Varadarajan, Venkataraman Neelanarayanan, Ron Doyle, Imad Fakhri Al-Shaikhli, Sven Groppe: Emerging Solutions in Big Data and Cloud Technologies for Mobile Networks
in: Mobile Networks and Applications, 2019, Vol.24, (3), p.1015-1017
2018
- Christopher Blochwitz, Julian Wolff, Mladen Berekovic, Dennis Heinrich, Sven Groppe, Jan Moritz Joseph, Thilo Pionteck: Hardware-Accelerated Index Construction for Semantic Web
in: International Conference on Field-Programmable Technology (FPT), Naha, Okinawa, Japan, 2018 - Sven Groppe, Christophe Cruz: The First International Workshop on Web Data Processing & Reasoning (WDPAR 2018)
in: Open Journal of Web Technologies (OJWT), 2018, Vol.5, (1), p.1-5, Special Issue: Proceedings of the International Workshop on Web Data Processing & Reasoning (WDPAR 2018) in conjunction with the 41st German Conference on Artificial Intelligence (KI) in Berlin, Germany. - Sinan Babayigit, Sven Groppe: Webpage Ranking Analysis of Various Search Engines with Special Focus on Country-Specific Search
in: Open Journal of Web Technologies (OJWT), 2018, Vol.5, (1), p.44-64, Special Issue: Proceedings of the International Workshop on Web Data Processing & Reasoning (WDPAR 2018) in conjunction with the 41st German Conference on Artificial Intelligence (KI) in Berlin, Germany. - Sven Groppe, Felix Kuhr, Mehmet Atilla Coskun: Anonymous Shopping in the Internet by Separation of Data
in: Open Journal of Web Technologies (OJWT), 2018, Vol.5, (1), p.14-22, Special Issue: Proceedings of the International Workshop on Web Data Processing & Reasoning (WDPAR 2018) in conjunction with the 41st German Conference on Artificial Intelligence (KI) in Berlin, Germany. - Sven Groppe, Carlo Alberto Boano: Editorial of the Workshop on Very Large Internet of Things (VLIoT 2018)
in: Open Journal of Internet Of Things (OJIOT), 2018, Vol.4, (1), p.1-6, Special Issue: Proceedings of the International Workshop on Very Large Internet of Things (VLIoT 2018) in conjunction with the VLDB 2018 Conference in Rio de Janeiro, Brazil. - Sven Groppe, Le Gruenwald: Proceedings of The International Workshop on Semantic Big Data, SBD@SIGMOD 2018, Houston, TX, USA
in: Proceedings of The International Workshop on Semantic Big Data, SBD@SIGMOD 2018, Houston, TX, USA, 2018, June, Sven Groppe, Le Gruenwald (Ed.), ACM
2017
- Fabian Rosenthal, Sven Groppe: Purposeful Searching for Citations of Scholarly Publications
in: Open Journal of Information Systems (OJIS), 2017, Vol.4, (1), p.27-48 - Dennis Heinrich, Stefan Werner, Christopher Blochwitz, Thilo Pionteck, Sven Groppe: Search & Update Optimization of a B+ Tree in a Hardware aided Semantic Web Database System
in: Proceedings of the 7th International Conference on Emerging Databases (EDB), 2017, Springer, Lecture Notes in Electrical Engineering (LNEE), Vol.461, Runner-Up Paper Award, p.172-182 - Moritz Welberg, Claus Schuster, Sven Groppe: Open-Source Knowledgemanagement Platform zur Unterstützung der Lehre in der Medizin
in: Gemeinsame Jahrestagung der Gesellschaft für Medizinische Ausbildung (GMA) und des Arbeitskreises zur Weiterentwicklung der Lehre in der Zahnmedizin (AKWLZ), 2017 - Sven Groppe, Carlo Alberto Boano: First Edition of the Very Large Internet of Things Workshop (VLIoT)
in: Open Journal of Internet Of Things (OJIOT), 2017, Vol.3, (1), p.12-17, Special Issue: Proceedings of the International Workshop on Very Large Internet of Things (VLIoT 2017) in conjunction with the VLDB 2017 Conference in Munich, Germany. - Stefan Werner, Dennis Heinrich, Thilo Pionteck, Sven Groppe: Semi-static operator graphs for accelerated query execution on FPGAs
in: Microprocessors and Microsystems, 2017, Vol.53, p.178 - 189 - Eric Oberesch, Sven Groppe: The mf-index: A Citation-Based Multiple Factor Index to Evaluate and Compare the Output of Scientists
in: Open Journal of Web Technologies (OJWT), 2017, Vol.4, (1), p.1-32 - Sven Groppe, Le Gruenwald: Proceedings of The International Workshop on Semantic Big Data, SBD@SIGMOD 2017, Chicago, IL, USA
in: Proceedings of The International Workshop on Semantic Big Data, SBD@SIGMOD 2017, Chicago, IL, USA, 2017, May, Sven Groppe, Le Gruenwald (Ed.), ACM - Christopher Blochwitz, Julian Wolff, Jan Moritz Joseph, Stefan Werner, Dennis Heinrich, Sven Groppe, Thilo Pionteck: Hardware-Accelerated Radix-Tree Based String Sorting for Big Data Applications
in: Architecture of Computing Systems (ARCS 2017) - 30th International Conference, 2017, 3.-6. April, Vienna, Austria, LNCS, Vol.10172, p.47-58
2016
- Sven Groppe, Dennis Heinrich, Christopher Blochwitz, Thilo Pionteck: Constructing Large-Scale Semantic Web Indices for the Six RDF Collation Orders
in: Open Journal of Big Data (OJBD), 2016, Vol.2, (1), p.11-25, ISSN 2365-029X - Sven Groppe, Le Gruenwald: Proceedings of the International Workshop on Semantic Big Data in conjunction with the ACM SIGMOD/PODS Conference, San Francisco, CA, USA
in: Proceedings of the International Workshop on Semantic Big Data in conjunction with the ACM SIGMOD/PODS Conference, San Francisco, CA, USA, July 1, 2016, Sven Groppe, Le Gruenwald (Ed.), ACM - Stefan Werner, Dennis Heinrich, Sven Groppe, Christopher Blochwitz, Thilo Pionteck: Runtime Adaptive Hybrid Query Engine based on FPGAs
in: Open Journal of Databases (OJDB), 2016, Vol.3, (1), p.21-41
2015
- Sven Groppe, Paulo Rupino da Cunha: Semantic and Web: The Semantic Part
in: Open Journal of Semantic Web (OJSW), 2015, Vol.2, (1), p.1-3 - Sven Groppe, Paulo Rupino da Cunha: Semantic and Web: The Web Part
in: Open Journal of Web Technologies (OJWT), 2015, Vol.2, (1), p.1-3 - Sven Groppe, Dennis Heinrich, Stefan Werner: Distributed Join Approaches for W3C-Conform SPARQL Endpoints
in: Open Journal of Semantic Web (OJSW), 2015, Vol.2, (1), p.30-52 - Rico Backasch, Gerald Hempel, Thilo Pionteck, Sven Groppe, Stefan Werner: An Architectural Template for Composing Application Specific Datapaths at Runtime
in: International Conference on ReConFigurable Computing and FPGAs (ReConFig), 2015, December 7 - 9, Cancun, Mexico - Christopher Blochwitz, Jan Moritz Joseph, Thilo Pionteck, Rico Backasch, Stefan Werner, Dennis Heinrich, Sven Groppe: An optimized Radix-Tree for hardware-accelerated index generation for Semantic Web Databases
in: International Conference on ReConFigurable Computing and FPGAs (ReConFig), 2015, December 7 - 9, Cancun, Mexico - Sven Groppe, K. Chandrasekaran: Advances in Cloud and Ubiquitous Computing
in: Open Journal of Cloud Computing (OJCC), 2015, Vol.2, (2), p.1-3 - Sven Groppe, Dennis Heinrich, Stefan Werner, Christopher Blochwitz, Thilo Pionteck: PatTrieSort - External String Sorting based on Patricia Tries
in: Open Journal of Databases (OJDB), 2015, Vol.2, (1), p.36-50 - Stefan Werner, Dennis Heinrich, Jannik Piper, Sven Groppe, Rico Backasch, Christopher Blochwitz, Thilo Pionteck: Automated Composition and Execution of Hardware-accelerated Operator Graphs
in: Proceedings of the 10th International Symposium on Reconfigurable Communication-centric Systems-on-Chip (ReCoSoC 2015), 2015, June 29 - July 1, IEEE, Bremen, Germany - Dennis Heinrich, Stefan Werner, Marc Stelzner, Christopher Blochwitz, Thilo Pionteck, Sven Groppe: Hybrid FPGA Approach for a B+ Tree in a Semantic Web Database System
in: Proceedings of the 10th International Symposium on Reconfigurable Communication-centric Systems-on-Chip (ReCoSoC 2015), 2015, June 29 - July 1, IEEE, Bremen, Germany - Stefan Werner, Dennis Heinrich, Marc Stelzner, Volker Linnemann, Thilo Pionteck, Sven Groppe: Accelerated join evaluation in Semantic Web databases by using FPGAs
in: Concurrency and Computation: Practice and Experience, 2015, May 18, Vol.28, (7), p.2031-2051
2014
- Rico Backasch, Gerald Hempel, Sven Groppe, Stefan Werner, Thilo Pionteck: Identifying Homogenous Reconfigurable Regions in Heterogeneous FPGAs for Module Relocation
in: International Conference on ReConFigurable Computing and FPGAs (ReConFig), 2014, December 8 - 10, Cancun, Mexico - Arne Kusserow, Sven Groppe: Getting Indexed by Bibliographic Databases in the Area of Computer Science
in: Open Journal of Web Technologies (OJWT), 2014, Vol.1, (2), p.10-27 - Sven Groppe, Johannes Blume, Dennis Heinrich, Stefan Werner: A Self-Optimizing Cloud Computing System for Distributed Storage and Processing of Semantic Web Data
in: Open Journal of Cloud Computing (OJCC), 2014, Vol.1, (2), p.1-14 - Sven Groppe, Thomas Kiencke, Stefan Werner, Dennis Heinrich, Marc Stelzner, Le Gruenwald: P-LUPOSDATE: Using Precomputed Bloom Filters to Speed Up SPARQL Processing in the Cloud
in: Open Journal of Semantic Web (OJSW), 2014, Vol.1, (2), p.25-55 - Stefan Werner, Dennis Heinrich, Marc Stelzner, Sven Groppe, Rico Backasch, Thilo Pionteck: Parallel and Pipelined Filter Operator for Hardware-Accelerated Operator Graphs in Semantic Web Databases
in: Proceedings of the 14th IEEE International Conference on Computer and Information Technology (CIT 2014), 2014, September 11 - 13, IEEE, Xi´an, China, Copyright: IEEE
2013
- Stefan Werner, Sven Groppe, Volker Linnemann, Thilo Pionteck: Hardware-accelerated Join Processing in Large Semantic Web Databases with FPGAs
in: Proceedings of the 2013 International Conference on High Performance Computing & Simulation (HPCS 2013), 2013, July 1 - 5, IEEE, Helsinki, Finland, p.131 - 138, Copyright: IEEE - Richard Mietz, Sven Groppe, Oliver Kleine, Daniel Bimschas, Stefan Fischer, Kay Römer, Dennis Pfisterer: A P2P Semantic Query Framework for the Internet of Things
in: PIK - Praxis der Informationsverarbeitung und Kommunikation, 2013, Vol.36, (2), p.73-79 - Richard Mietz, Sven Groppe, Kay Römer, Dennis Pfisterer: Semantic Models for Scalable Search in the Internet of Things
in: Journal of Sensor and Actuator Networks (JSAN), 2013, Vol.2, (2), p.172-195 - Sven Groppe, Björn Schütt, Stefan Werner: Eliminating the XML Overhead in Embedded XML Languages
in: Proceedings of the 28th ACM Symposium on Applied Computing (ACM SAC 2013), 2013, March 18 - 22, ACM, Coimbra, Portugal, Copyright: ACM
2011
- Sven Groppe, Jinghua Groppe, Stefan Werner, Matthias Samsel, Florian Kalis, Kristina Fell, Peter Kliesch, Markus Naklah: Using a Streaming SPARQL Evaluator for Monitoring eBay Auctions
in: International Journal of Web Applications (IJWA), 2011, Vol.3, (4), p.166-178, Copyright: dline - Jinghua Groppe, Sven Groppe: Accelerating Large Semantic Web Databases by Parallel Join Computations of SPARQL Queries
in: ACM Applied Computing Review (ACR), 2011, Vol.11, (4), p.60-70, Copyright: ACM - Stefan Werner, Christoph Reinke, Sven Groppe, Volker Linnemann: Adaptive Service Migration in Wireless Sensor Networks
in: Proceedings of the 12th International Conference on Parallel and Distributed Computing, Applications and Technologies (PDCAT-2011), 2011, October 20 - 22, CPS, Gwangju, Korea, p.334-341, Copyright: IEEE - Sven Groppe, Jinghua Groppe, Stefan Werner, Matthias Samsel, Florian Kalis, Kristina Fell, Peter Kliesch, Markus Nakhlah: Monitoring eBay Auctions by querying RDF Streams
in: Proceedings of the Sixth International Conference on Digital Information Management (ICDIM 2011), 2011, September 26 - 28, CPS, Trinity College, The University of Melbourne, Australia, p.223-228, Copyright: IEEE - Christoph Reinke, Nils Hoeller, Stefan Werner, Sven Groppe, Volker Linnemann: Analysis and Comparison of Concurrency Control Protocols for Wireless Sensor Networks
in: Proceedings of the 3rd International Workshop on Performance Control in Wireless Sensor Networks (PWSN 2011) in conjunction with the 7th IEEE International Conference on Distributed Computing in Sensor Systems (IEEE DCOSS 11), 2011, June 29, IEEE, Barcelona, Spain, p.1-6, Copyright: IEEE - Sven Groppe: Data Management and Query Processing in Semantic Web Databases
Springer Verlag, Heidelberg, 2011, Copyright: Springer - Christoph Reinke, Nils Hoeller, Stefan Werner, Sven Groppe, Volker Linnemann: Consistent Service Migration in Wireless Sensor Networks
in: Proceedings of the 2011 International Conference on Wireless and Optical Communications (ICWOC 2011 - including ICIME 2011), 2011, May 21 - 22, IEEE, Zhengzhou, China, p.278-285, Copyright: IEEE - Jinghua Groppe, Sven Groppe, Andreas Schleifer: Visual Query Systems for Analyzing Social Semantic Web
in: Proceedings of the 20th International World Wide Web Conference (WWW 2011), 2011, March 28 - April 1, ACM, Hyderabad, India, p.217-220, Copyright: ACM - Jinghua Groppe, Sven Groppe: Parallelizing Join Computations of SPARQL Queries for Large Semantic Web Databases
in: Proceedings of the 26th ACM Symposium on Applied Computing (ACM SAC 2011), 2011, March 21 - 25, William C. Chu, W. Eric Wong, Mathew J. Palakal, Chih-Cheng Hung (Ed.), ACM, TaiChung, Taiwan, p.1681-1686, Copyright: ACM - Sven Groppe, Jinghua Groppe, Niklas Klein, Ralf Bettentrupp, Stefan Böttcher, Le Gruenwald: Transforming XSLT Stylesheets into XQuery Expressions and Vice Versa
in: Computer Languages, Systems & Structures, An International Journal, 2011, Vol.37, (2), p.76-111, Copyright: Elsevier
2010
- Nils Hoeller, Christoph Reinke, Jana Neumann, Sven Groppe, Christian Werner, Volker Linnemann: Efficient XML data and query integration in the wireless sensor network engineering process
in: International Journal of Web Information Systems, 2010, Vol.6, (4), p.319-358, Copyright: Emerald - Nils Hoeller, Christoph Reinke, Jana Neumann, Sven Groppe, Martin Lipphardt, Björn Schütt, Volker Linnemann: Stream-based XML Template Compression for Wireless Sensor Network Data Management
in: Proceedings of the 4th International Conference on Multimedia and Ubiquitous Engineering (MUE 2010), 2010, August 11 - 13, IEEE, Cebu, Philippines, This paper received the BEST PAPER AWARD MUE 2010, p.1-9, Copyright: IEEE - Nils Hoeller, Christoph Reinke, Jana Neumann, Sven Groppe, Florian Frischat, Volker Linnemann: DACS: A Dynamic Approximative Data Caching in Wireless Sensor Networks
in: Proceedings of the 5th International Conference on Digital Information Management (ICDIM 2010), 2010, July 5 - 8, IEEE, Thunder Bay, Canada, p.339-346, Copyright: IEEE - Christoph Reinke, Nils Hoeller, Jana Neumann, Sven Groppe, Simon Werner, Volker Linnemann: Analysis and Comparison of Atomic Commit Protocols for Adaptive Usage in Wireless Sensor Networks
in: Proceedings of the 2010 IEEE International Conference on Sensor Networks, Ubiquitous and Trustworthy Computing (SUTC 2010), 2010, June 7 - 9, IEEE, Newport Beach, California, USA, p.138-145, Copyright: IEEE - Sven Groppe, Jinghua Groppe: External Sorting for Index Construction of Large Semantic Web Databases
in: Proceedings of the 25th ACM Symposium on Applied Computing, Vol. II (ACM SAC 2010), 2010, March 22 - 26, Dongwan Shin, New Mexico Institute of Mining, Technology, United States (Ed.), ACM, Sierre, Switzerland, p.1373-1380, Copyright: ACM
2009
- Nils Hoeller, Christoph Reinke, Jana Neumann, Sven Groppe, Christian Werner, Volker Linnemann: XML Data Management and XPath Evaluation in Wireless Sensor Networks
in: Proceedings of the 7th International Conference on Advances in Mobile Computig & Multimedia (MoMM 2009), held in conjunction with iiWAS 2009 conference, 2009, December 14 - 16, Gabriele Kotsis, David Taniar, Eric Pardede, Ismail Khalil (Ed.), ACM, Kuala Lumpur, Malaysia, This paper received the BEST PAPER AWARD MoMM 2009, p.218-227, Copyright: ACM - Jinghua Groppe, Sven Groppe, Andreas Schleifer, Volker Linnemann: LuposDate: A Semantic Web Database System
in: Proceedings of the 18th ACM Conference on Information and Knowledge Management (ACM CIKM 2009), 2009, November 2 - 6, ACM, Hong Kong, China, p.2083-2084, Copyright: ACM - Sven Groppe, Jinghua Groppe, Dirk Müller: Result Merging Technique for Answering XPath Query over XSLT Transformed Data
in: IEEE Transactions on Knowledge and Data Engineering (IEEE TKDE), 2009, Vol.21, (9), p.1328-1342, Copyright: IEEE - Nils Hoeller, Christoph Reinke, Jana Neumann, Sven Groppe, Christian Werner, Volker Linnemann: Towards Energy Efficient XPath Evaluation in Wireless Sensor Networks
in: ACM International Conference Proceeding Series - Proceedings of the 6th International Workshop on Data Management for Sensor Networks (DMSN 2009), in conjunction with VLDB 2009, 2009, August 24 - 28, ACM, Lyon, Frankreich, p.1-2, Copyright: ACM - Matthias Droop, Markus Flarer, Jinghua Groppe, Sven Groppe, Volker Linnemann, Jakob Pinggera, Florian Santner, Michael Schier, Felix Schöpf, Hannes Staffler, Stefan Zugal: Bringing the XML and Semantic Web Worlds Closer: Transforming XML into RDF and Embedding XPath into SPARQL
in: Enterprise Information Systems, 10th International Conference, ICEIS 2008, Barcelona, Spain, June 12-16, 2008, Revised Selected Papers, Lecture Notes in Business Information Processing, Joaquim Filipe, José Cordeiro (Ed.), p.21-45, Springer, 2009, Copyright: Springer - Jinghua Groppe, Sven Groppe, Jan Kolbaum: Optimization of SPARQL by Using coreSPARQL
in: Proceedings of the 11th International Conference on Enterprise Information Systems, Volume DISI,(ICEIS 2009), 2009, Mai 6 - 10, José Cordeiro, Joaquim Filipe (Ed.), INSTICC, Milano, Italien, p.107-112, Copyright: INSTICC - Sven Groppe, Jinghua Groppe, Christoph Reinke, Nils Hoeller, Volker Linnemann: XSLT: Common Issues with XQuery and Special Issues of XSLT
in: Open and novel issues in XML database applications: future directions and advanced technologies, Eric Pardede (Ed.), p.108-135, IGI Global, 2009, Information Science Reference, USA/UK, Copyright: IGI Global - Christoph Reinke, Nils Hoeller, Martin Lipphardt, Jana Neumann, Sven Groppe, Volker Linnemann: Integrating Standardized Transaction Protocols in Service Oriented Wireless Sensor Networks
in: Proceedings of the 24th ACM Symposium on Applied Computing (ACM SAC 2009), 2009, March 8 - 12, ACM, Honolulu, Hawaii, USA, p.2202-2203, Copyright: ACM - Sven Groppe, Jana Neumann, Volker Linnemann: SWOBE - Embedding the Semantic Web languages RDF, SPARQL and SPARUL into Java for Guaranteeing Type Safety, for Checking the Satisfiability of Queries and for the Determination of Query Result Types
in: Proceedings of the 24th ACM Symposium on Applied Computing (ACM SAC 2009), 2009, March 8 - 12, ACM, Honolulu, Hawaii, USA, p.1239-1246, Copyright: ACM - Jinghua Groppe, Sven Groppe, Sebastian Ebers, Volker Linnemann: Efficient Processing of SPARQL Joins in Memory by Dynamically Restricting Triple Patterns
in: Proceedings of the 24th ACM Symposium on Applied Computing (ACM SAC 2009), 2009, March 8 - 12, ACM, Honolulu, Hawaii, USA, p.1231-1238, Copyright: ACM - Sven Groppe, Jinghua Groppe, Stefan Boettcher, Thomas Wycisk, Le Gruenwald: Optimizing the Execution of XSLT Stylesheets for Querying Transformed XML Data
in: Knowledge and Information Systems (KAIS), An International Journal, 2009, Vol.18, (3), p.331-391, Copyright: Springer-Verlag, London Limited
2008
- Martin Lipphardt, Jana Neumann, Sven Groppe, Christian Werner: DySSCo - A protocol for Dynamic Self-organizing Service Coverage
in: Proceedings of the 3rd International Workshop on Self-Organizing Systems (IWSOS 2008), 2008, December 10 - 12, Karin Anna Hummel, James P. G. Sterbenz (Ed.), Springer-Verlag, Wien, Österreich, Lecture Notes in Computer Science (LNCS), Vol.5343, p.109-120, Copyright: Springer-Verlag - Nils Hoeller, Christoph Reinke, Jana Neumann, Sven Groppe, Daniel Boeckmann, Volker Linnemann: Efficient XML Usage within Wireless Sensor Networks
in: Proceedings of the Fourth International Wireless Internet Conference (WICON 2008), 2008, November 17 - 19, Xudong Wang, Ness B. Shroff (Ed.), ICST (Institute for Computer Sciences, Social-Informatics and Telecommunications Engineering), Maui, Hawaii, USA, ACM International Conference Proceeding Series (AICPS), p.Article No: 74, Copyright: ICST (Permission to make digital or hard copies of all or part of this work for personal classroom use is granted without fee.) - Sven Groppe, Jinghua Groppe: Output Schemas of XSLT Stylesheets and their Applications
in: Information Sciences Journal, 2008, Vol.178, (21), p.3989-4018, Copyright: Elsevier - Martin Lipphardt, Jana Neumann, Nils Hoeller, Christoph Reinke, Sven Groppe, Volker Linnemann, Christian Werner: XML und SOA als Wegbereiter für Sensornetze in der Praxis
in: Praxis der Informationsverarbeitung und Kommunikation (PIK), 2008, Juli - September, Vol.31, (3), p.146-152 - Nils Hoeller, Christoph Reinke, Sven Groppe, Volker Linnemann: Xobe Sensor Networks: Integrating XML in Sensor Network Programming
in: Proceedings of the 5th International Conference on Networked Sensing Systems (INSS 2008), 2008, June 17 - 19, IEEE, Kanazawa, Japan, p.229, Copyright: IEEE - Matthias Droop, Markus Flarer, Jinghua Groppe, Sven Groppe, Volker Linnemann, Jakob Pinggera, Florian Santner, Michael Schier, Felix Schoepf, Hannes Staffler, Stefan Zugal: Embedding XPATH Queries into SPARQL Queries
in: Proceedings of the 10th International Conference on Enterprise Information Systems, Volume DISI, (ICEIS 2008), 2008, June 12 - 16, José Cordeiro, Joaquim Filipe (Ed.), INSTICC, Barcelona, Spain, p.5-14, Copyright: INSTICC - Sven Groppe, Jinghua Groppe, Stefan Böttcher: Simplifying XPath Queries for optimization with regard to the elimination of intersect and except operators
in: Data & Knowledge Engineering, 2008, May, Vol.65, (2), p.198-222, special Section: 3rd XML Schema and Data Management Workshop (XSDM 2006) in conjunction with IEEE ICDE 2006 – Five selected and extended papers, Copyright: Elsevier B.V. - Sven Groppe, Jinghua Groppe, Volker Linnemann, Dirk Kukulenz, Nils Hoeller, Christoph Reinke: Embedding SPARQL into XQuery / XSLT
in: Proceedings of the 23rd ACM Symposium on Applied Computing (ACM SAC 2008), 2008, March 16 - 20, Roger L. Wainwright, Hisham Haddad (Ed.), ACM, Fortaleza, Ceara, Brasilien, p.2271-2278, Copyright: ACM - Jinghua Groppe, Sven Groppe: Filtering unsatisfiable XPath queries
in: Data & Knowledge Engineering, 2008, January, Vol.64, (1), p.134-169, special issue with selected papers from the 8th International Conference on Enterprise Information Systems (ICEIS’ 2006), Copyright: Elsevier
2007
- Sven Groppe, Jinghua Groppe, Dirk Kukulenz, Volker Linnemann: A SPARQL Engine for Streaming RDF Data
in: Proceedings 3rd International Conference on Signal-Image Technology & Internet-Based Systems (SITIS 2007), 2007, December 16 - 19, Shanghai, China, This paper received an honorable mention at the SITIS 07 Conference., p.154-161, Copyright: IEEE - Dirk Kukulenz, Nils Hoeller, Sven Groppe, Volker Linnemann: Optimization of Bounded Continuous Search Queries based on Ranking Distributions
in: Proceedings 8th International Conference on Web Information Systems Engineering (WISE 2007), 2007, December 3 - 7, Springer-Verlag, Nancy, Frankreich, Lecture Notes in Computer Science (LNCS), Vol.4831, p.26-37, Copyright: Springer-Verlag - Matthias Droop, Markus Flarer, Jinghua Groppe, Sven Groppe, Volker Linnemann, Jakob Pinggera, Florian Santner, Michael Schier, Felix Schöpf, Hannes Staffler, Stefan Zugal: Translating XPath Queries into SPARQL Queries
in: On the Move to Meaningful Internet Systems (OTM 2007), OTM Workshops Part I: DOA, ODBASE, CoopIS, GADA, IS, 2007, November 27 - 29, Springer-Verlag, Vilamoura, Algarve, Portugal, Lecture Notes in Computer Science (LNCS), Vol.4805, p.9-10, Copyright: Springer-Verlag - Beda Christoph Hammerschmidt, Christian Werner, Ylva Brand, Volker Linnemann, Sven Groppe, Stefan Fischer: Incremental Validation of String-based XML Data in Databases, File Systems and Streams
in: Yannis Ioannidis, Boris Novikov, Boris Rachev: 11th East-European Conference on Advances in Databases and Information Systems (ADBIS 2007), 2007, September 29 - October 3, Yannis Ioannidis, Boris Novikov, Boris Rachev (Ed.), Springer Berlin/Heidelberg, Varna, Bulgaria, Lecture Notes in Computer Science (LNCS), Vol.4690, p.314-329, Copyright: Springer-Verlag - Sven Groppe, Jinghua Groppe, Volker Linnemann: How to Determine Output Schemas of XQuery Queries
in: Proceedings 24th British National Conference on Databases, BNCOD Workshop on Web Information Management (BNCODwebim 2007), 2007, July 2 - 3, IEEE, Glasgow, Great Britain, p.130-139, Copyright: IEEE - Sven Groppe, Jinghua Groppe, Volker Linnemann: Using an Index of Precomputed Joins in order to speed up SPARQL Processing
in: Proceedings 9th International Conference on Enterprise Information Systems (ICEIS 2007 (1), Volume DISI), 2007, June 12 - 16, Jorge Cardoso, José Cordeiro, Joaquim Filipe (Ed.), INSTICC, Funchal, Madeira, Portugal, p.13-20, Copyright: INSTICC