Mitarbeiterinnen und Mitarbeiter

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Vita

2002-2006 Bachelor of Science, Informatik, Heinrich-Heine Universität Düsseldorf. Titel der Arbeit: "Translation of RDQL-Queries into SQL" am Lehrstuhl für Datenbanken und Informationssysteme.

2006-2009 Master of Science, Informatik, Heinrich-Heine Universität Düsseldorf. Titel der Arbeit: "Validating SMV Specifications in ProB" am Lehrstuhl für Softwaretechnik und Programmiersprachen.

2009-2011 IT-Beratung und Entwicklung von Web-basiert E-Business Lösungen.

Seit 2011 Wissenschaftlicher Mitarbeiter (Doktorand) im Team GESIS-Architecture.

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Service

Technische Verantwortlichkeit, Betreuung und Weiterentwicklung des GESIS Angebots "MISSY", http://www.gesis.org/missy, und der GESIS Software zur Dokumentation von Metadaten auf Studien-, Variablen- und Frageebene, "MISSY Editor", http://www.gesis.org/missy/editor.

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Forschung

Relational databases (RDB) are often the first choice, when it comes to the storage of application data. With the different structural properties of a domain model, e.g. tabular or graph-based, a RDB is not always the ”best” choice, regarding optimal storage and query performance. With the development of new storage types, e.g. Triple Stores, NoSQL-Databases, etc., which produce other efficient schema designs, the choice for the most suitable storage type for a domain model is far from trivial. In my research, we evaluate different storage types and focus on the aspect of query performance. We chose a domain model from the social sciences and data from a real life system, together with typical use case queries for this domain model, which are widely accepted by the domain experts. Evaluations show that a RDB is not always the best choice with respect to query performance of some queries and that a closer look at the schema might influence the choice for the most suitable storage type.

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Veröffentlichungen

Publikation

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Zeitschriftenaufsatz

Zloch, Matthäus, Maribel Acosta, Daniel Hienert, Stefan Conrad, and Stefan Dietze. 2020. "Characterizing RDF Graphs through Graph-based Measures - Framework and Assessment." Semantic Web Journal, IOS Press 2020 (pre-press): 1-24. doi: http://dx.doi.org/10.3233/SW-200409.

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Beitrag im Sammelwerk

Zloch, Matthäus, Maribel Acosta, Daniel Hienert, Stefan Dietze, and Stefan Conrad. 2019. "A Software Framework and Datasets for the Analysis of Graph Measures on RDF Graphs." In The Semantic Web: 16th International Conference, ESWC 2019, Portorož, Slovenia, June 2–6, 2019, Proceedings, edited by Pascal Hitzler, Miriam Fernandez, and Krzysztof Janowicz, Lecture Notes in Computer Science 11503, 523-539. Cham: Springer. https://doi.org/10.1007/978-3-030-21348-0_34.

Tchechmedjiev, Andon, Pavlos Fafalios, Katarina Boland, Malo Gasquet, Matthäus Zloch, Benjamin Zapilko, Stefan Dietze, and Konstantin Todorov. 2019. "ClaimsKG: A Knowledge Graph of Fact-Checked Claims." In The Semantic Web – ISWC 2019. ISWC 2019, edited by Chiara Ghidini, Olaf Hartig, and Maria Maleshkova, Lecture Notes in Computer Science 11779, 309-324. Cham: Springer. doi: http://dx.doi.org/10.1007/978-3-030-30796-7_20.

Gasquet, Malo, darlene brechtel, Matthäus Zloch, Andon Tchechmedjiev, Katarina Boland, Pavlos Fafalios, Stefan Dietze, and Konstantin Todorov. 2019. "Exploring Fact-checked Claims and their Descriptive Statistics." In ISWC 2019 Satellites: Proceedings of the ISWC 2019 Satellite Tracks (Posters & Demonstrations, Industry, and Outrageous Ideas) co-located with 18th International Semantic Web Conference (ISWC 2019), edited by Mari Carmen Suárez-Figueroa, Gong Cheng, Anna Lisa Gentile, Christophe Guéret, Maria Keet, and Abraham Bernstein, CEUR workshop proceedings, 289-292. Aachen: RWTH.

Zloch, Matthäus, Daniel Hienert, and Stefan Conrad. 2017. "Towards a Use Case Driven Evaluation of Database Systems for RDF Data Storage - A Case Study for Statistical Data." In Joint Proceedings of BLINK2017: 2nd International Workshop on Benchmarking Linked Data and NLIWoD3: Natural Language Interfaces for the Web of Data co-located with 16th International Semantic Web Conference (ISWC 2017), edited by Axel-Cyrille Ngonga Ngomo, Anastasia Krithara, and Irini Fundulaki, 1932. Vienna: CEUR Workshop Proceedings. http://ceur-ws.org/Vol-1932/#paper-08.

Zloch, Matthäus. 2016. "Methods for Automatic Selection of Database Systems for Optimized Query Performance." In Informatik 2016 : Tagung vom 26.-30. September 2016 in Klagenfurt, edited by Philipp Mayr, and Martin Pinzger, GI-Edition Lecture notes in informatics. Proceedings 259.

Wira-Alam, Andias, and Matthäus Zloch. 2013. "Improving web search results with explanation-aware snippets: an experimental study." In WEBIST 2013 : proceedings of the 9th International Conference on Web Information Systems and Technologies ; Aachen, Deutschland, 8 - 10 May 2013, 459-464. Aachen: SciTePress.

Zapilko, Benjamin, Matthäus Zloch, and Johann Schaible. 2012. "Utilizing regular expressions for instance-based schema matching." In Proceedings of the 7th International Workshop on Ontology Matching (OM-2012) collocated with the 11th International Semantic Web Conference (ISWC-2012), edited by Pavel Shvaiko, Jérôme Euzenat, Anastasios Kementsietsidis, Ming Mao, Natasha Noy, and Heiner Stuckenschmidt, CEUR Workshop Proceedings Vol-946. http://ceur-ws.org/Vol-946/om2012_poster4.pdf.

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Arbeits- und Diskussionspapier

Bohr, Jeanette, Anne Balz, Florian Thirolf, and Matthäus Zloch. 2018. Microdata Information System MISSY: Benefits for Research with Official Microdata, DDI-Based Implementation, and Evaluation with Regard to FAIR Criteria. GESIS Papers 18/2018. Köln: GESIS. urn: http://nbn-resolving.de/urn:nbn:de:0168-ssoar-58260-7.

Lehre

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Seminar

Wegener, Dennis, Matthäus Zloch, and Thomas Bosch. 2012. "DDI & Model-View-Controller: an architectural perspective." Wadern.

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Sonstiges

Bosch, Thomas, and Matthäus Zloch. 2012. "Introduction to the next generation of the microdata information system (MISSY)." Bergen.

Vortrag

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Konferenzbeitrag

Zloch, Matthäus, Maribel Acosta, Daniel Hienert, Stefan Dietze, and Stefan Conrad. 2019. "A Software Framework and Datasets for the Analysis of Graph Measures on RDF Graphs." 16th Extended Semantic Web Conference (ESWC2019), 02.06.2019.

Zloch, Matthäus, Daniel Hienert, and Stefan Conrad. 2017. "Towards a Use Case Driven Evaluation of Database Systems for RDF Data Storage - A Case Study for Statistical Data." Workshop on Benchmarking Linked Data (BLINK) at ISWC 2017, 21.10.1017.

Bohr, Jeanette, and Matthäus Zloch. 2016. "Documenting Microdata from Official Statistics – Benefits of a DDI-Based Backend Infrastructure." EDDI16 – 8th Annual European DDI User Conference, 07.12.2016.

Zloch, Matthäus. 2014. "Lessons-learned from using DDI-RDF discovery vocabulary as backend model." EDDI14: 6th Annual European DDI User Conference.

Bosch, Thomas, Matthäus Zloch, and Dennis Wegener. 2013. "A Business Perspective on Use-Case-Driven Challenges for Software Architectures to Document Study and Variable Information." 39th International Association for Social Science Information Services & Technology (IASSIST 2013). http://de.slideshare.net/boschthomas/201305-iassist-2013.

Zloch, Matthäus, Thomas Bosch, and Dennis Wegener. 2013. "A technical perspective on use-case-driven challenges for software architectures to document study and variable information." 39th International Association for Social Science Information Services & Technology (IASSIST 2013). http://de.slideshare.net/boschthomas/201305-iassist-2013-2.

Zloch, Matthäus, Thomas Bosch, and Dennis Wegener. 2012. "Towards a DDI backend architecture: sharing DDI-related software modules." EDDI12: 4th Annual European DDI User Conference.

Zapilko, Benjamin, Matthäus Zloch, and Johann Schaible. 2012. "Utilizing regular expressions for instance-based schema matching." 7th International Workshop on Ontology Matching (OM-2012) collocated with the 11th International Semantic Web Conference (ISWC-2012).

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Beitrag nicht auf Konferenz

Zloch, Matthäus. 2016. "Git Basics and Git Workflow Strategies." CESSDA Expert Seminar 2016.

Gutachten

Zloch, Matthäus. 2020. "Gutachten für die 19th International Semantic Web Conference (ISWC)." Anzahl: 3.

Zloch, Matthäus. 2020. "Gutachten für die 29th ACM International Conference on Information and Knowledge Management: Resource Track." Anzahl: 1.

Zloch, Matthäus. 2019. "Gutachten für die 18th International Semantic Web Conference (ISWC)." Anzahl: 2.

Sonstiges

Bosch, Thomas, Jeanette Bohr, and Matthäus Zloch. 2013. "Demo: The New Microdata Information System (MISSY): integration of DDI-based data models, an open-source software architecture, and Independent persistence service implementations."

Bosch, Thomas, Jeanette Bohr, and Matthäus Zloch. 2013. "Poster: The New Microdata Information System (MISSY): integration of DDI-based data models, an open-source software architecture, and Independent persistence service implementations."

Zloch, Matthäus, and Thomas Bosch. 2013. "The next generation microdata information system (MISSY): towards a best-practice open-source software architecture for DDI-driven data models."

Zloch, Matthäus, and Thomas Bosch. 2012. "Towards a DDI backend architecture - sharing DDI-related software modules."

Organisation

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Veranstaltung

Bosch, Thomas, and Matthäus Zloch. 2012. "Create your own information systems on the basis of DDI-Lifecycle." 4th European DDI User Conference (EDDI 2012), Bergen. http://de.slideshare.net/boschthomas/201212-eddi-2012-workshop.