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Vita

2002-2006 Bachelor of Science, Computer Science, Heinrich-Heine Universität Düsseldorf. With the title: "Translation of RDQL-Queries into SQL" at the Institut for Databases and Informationsystems.

2006-2009 Master of Science, Computer Science, Heinrich-Heine Universität Düsseldorf. With the title: "Validating SMV Specifications in ProB" at the Institute for Software Engineering and Programming Languages.

2009-2011 IT-Consultant for the development of web-based E-Business solutions.

Since 2011 Research Associate (PhD-Student) in the team GESIS-Architecture. To top

Service

Technical responsibility, service and development of the GESIS web-service "MISSY", http://www.gesis.org/missy, and the GESIS software for documenting metadata on study, variable, and question level "MISSY Editor", http://www.gesis.org/missy/editor. To top

Research

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. To top

Publications

Publication

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Journal article

Zloch, Matthäus, Maribel Acosta, Daniel Hienert, Stefan Conrad, and Stefan Dietze. 2021. "Characterizing RDF graphs through graph-based measures – framework and assessment." Semantic Web 12 (5): 789-812. doi: https://doi.org/10.3233/SW-200409.

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Chapter in an edited book

Karmakar, Dr. Saurav, Matthäus Zloch, Fidan Limani, Benjamin Zapilko, Sharmila Upadhyaya, Jennifer D'Souza, Leyla Jael Castro, Georg Rehm, Marcel R. Ackermann, Harald Sack, Zeyd Boukhers, Sonja Schimmler, Peter Mutschke, and Stefan Dietze. 2023. "Research Knowledge Graphs in NFDI4DS." In INFORMATIK 2023 - Designing Futures: Zukünfte gestalten, edited by Maike Klein, Daniel Krupka, Cornelia Winter, and Volker Wohlgemuth, Lecture Notes in Informatics (LNI) - Proceedings P-337, 909-918. Gesellschaft für Informatik e.V.. doi: https://doi.org/10.18420/inf2023_102.

Ahmad, Raia Abu, Jennifer D’Souza, Matthäus Zloch, Wolfgang Otto, Georg Rehm, Allard Oelen, Stefan Dietze, and Sören Auer. 2023. "Towards FAIR Semantic Publishing of Research Dataset Metadata in the Open Research Knowledge Graph." In 3rd Workshop on Ontologies for FAIR and FAIR Ontologies (Onto4FAIR), Studies on Semantic Web Series, 23-31. IOS Press.

Dimitrov, Dimitar, Erdal Baran, Pavlos Fafalios, Ran Yu, Xiaofei Zhu, Matthäus Zloch, and Stefan Dietze. 2020. "TweetsCOV19: A knowledge base of semantically annotated tweets about the COVID-19 pandemic." In CIKM '20: Proceedings of the 29th ACM international conference on information & knowledge management, edited by Mathieu d'Aquin, and Stefan Dietze, 2991–2998. New York: ACM. doi: https://doi.org/10.1145/3340531.3412765. https://arxiv.org/pdf/2006.14492v4.pdf.

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: https://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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Working and discussion paper

Klas, Claus-Peter, Matthäus Zloch, Janete Saldanha Bach, Erdal Baran, and Peter Mutschke. 2022. KonsortSWD Measure 5.1: PID Service for variables report. doi: https://doi.org/10.5281/zenodo.6397367.

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.

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Data/Software

Zhang, Yudong, Erdal Baran, Matthäus Zloch, Alexander Mühlbauer, Peter Mutschke, and Claus-Peter Klas. 2022. KonsortSWD PID Registrator. doi: https://doi.org/10.5281/zenodo.5914219.

Lecture

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Presentation at a conference

Dimitrov, Dimitar, Erdal Baran, Pavlos Fafalios, Ran Yu, Xiaofei Zhu, Matthäus Zloch, and Stefan Dietze. 2020. "TweetsCOV19 : A Knowledge Base of Semantically Annotated Tweets about the COVID-19 Pandemic." 29th ACM International Conference on Information & Knowledge Management (CIKM2020), ACM 2020, Virtuell, 2020-10-19. http://www.cikm2020.org/.

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), 2019-06-02.

Tchechmedjiev, Andon, Pavlos Fafalios, Katarina Boland, Malo Gasquet, Matthäus Zloch, Benjamin Zapilko, Stefan Dietze, and Konstantin Todorov. 2019. "ClaimsKG: A Live Knowledge Graph of Fact-Checked Claims." 18th International Semantic Web Conference (ISWC19), Auckland, New Zealand, University of Auckland, Nürnberg, 2019-10-28.

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, 1017-10-21.

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, 2016-12-07.

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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Presentation not at a conference

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

Teaching

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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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Other

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

Other

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." EDDI13: 5th Annual European DDI User Conference. http://www.eddi-conferences.eu/ocs/index.php/eddi/EDDI13/schedConf/program.

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." EDDI13: 5th Annual European DDI User Conference. http://www.eddi-conferences.eu/ocs/index.php/eddi/EDDI13/schedConf/program.

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." 39th International Association for Social Science Information Services & Technology (IASSIST 2013). http://www.iassist2013.org/program/poster-session/#c186.

Zloch, Matthäus, and Thomas Bosch. 2012. "Towards a DDI backend architecture - sharing DDI-related software modules." 4th European DDI User Conference (EDDI 2012). http://de.slideshare.net/boschthomas/201212-eddi-2012-poster-demo.

Expertise and review

Zloch, Matthäus. 2020. "Gutachten für die 29th ACM International Conference on Information and Knowledge Management (CIKM2020): Resource Track." Anzahl: 1.

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

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

Organisation

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Event

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.