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Prof. Dr. Sandra Geisler

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Contact Information

Address: Data Stream Management and Analysis
room 6212, building: E2
Ahornstr. 55
52056 Aachen
Phone: +49 / 241 / 80-21508
Fax: +49 / 241 / 80-22321

Office hours

Appointments only on request.

Short Biography

Sandra Geisler received her doctoral degree in computer science in December 2016 at the RWTH Aachen University. The thesis' title was "A systematic evaluation approach for data stream-based applications". She completed her diploma (master) studies in computer science in April 2008 at RWTH Aachen University.

Sandra Geisler is working as post-doctoral research and development engineer at the Fraunhofer Institute for Applied Information Technology FIT in St. Augustin in the group High Content Analysis and Information-intensive Instruments of the Life Science Informatics department. She was working as a research assistant and PhD student at the Informatik 5 (Information Systems) chair at RWTH Aachen University from June 2008 until April 2017. She was member of the working group Model Management.

Professional Interests

  • Data Streams
  • Data Quality Management
  • Information Systems in Life Science
  • Big Data
  • Ontologies and the Semantic Web
  • Data Integration
  • Schema Matching
  • Business Intelligence


  • Big Time - A Glance At Azure Time Series Insights, SQL Saturday Wien, 24.01.2020, Wien, Österreich
  • Schritte ins digitale Gesundheitswesen - Szenarien des Fraunhofer Medical Data Space, Networked Health, 09.11.2019, Köln, Deutschland
  • How Flow Can You Go, SQL Saturday Rheinland, 25.05.2019, Bonn, Deutschland
  • Stream on - Echtzeitdatenanalyse mit MS StreamInsight & Azure Stream Analytics, SQL Server Konferenz, 21.02.2019, Darmstadt, Deutschland
  • Get into the Flow, SQL Server Konferenz, 20.02.2019, Darmstadt, Deutschland
  • Stream on - Echtzeitdatenanalyse mit MS StreamInsight & Azure Stream Analytics, SQLdays Konferenz, 10.10.2018, Erding, Deutschland
  • Stream on - Real-time Data Analysis with StreamInsight and Azure Stream Analytics, SQL Server Konferenz 2018, 28.02.2018, Darmstadt, Deutschland
  • An Integrated Ontology-based Approach for Patent Classification in Medical Engineering, 12th Int. Conference on Data Integration in the Life Sciences 2017 (DILS'17), 13.11.2017, Luxembourg, Luxembourg
  • Ontology-based Data Quality Management for Data Streams, Otto-Friedrich-Universitaet Bamberg, 16.05.2017, Bamberg
  • Microsoft Business Intelligence für alle mobilen Plattformen, SQL Saturday Wien, 20.01.2017, Wien, Austria
  • Complex Event Processing mit StreamInsight, PASS (Professional Association for SQL Server) Regionalgruppe Ruhrgebiet, 14.03.2013
  • An Ontology-based Data Quality Framework for Data Stream Applications, 16th International Conference on Data Quality, 19.11.2011, Adelaide, Australia
  • A Universal Tool for Mobile Long-Time Recording, Monitoring and Analysis of Bio-Signals. IEEE International Conference on Mobile Data Management, International Workshop on Managing Health Information in Mobile Applications (HIMoA), June 6-9, Luleå, Sweden
  • Data Stream Management Systems and Query Languages, Advanced School on Data Exchange, Integration and Streams (DEIS'10), Schloss Dagstuhl, Wadern, 09.11.2010
  • A data stream-based evaluation framework for traffic information systems. ACM SIGSPATIAL Intl. Workshop on GeoStreaming (IWGS), San José, USA, November 2010
  • Accuracy Assessment for Traffic Information Derived from Floating Phone Data. 17th World Congress on Intelligent Transportation Systems and Services (ITS), Busan, South-Korea, October 2010
  • A Data Stream-based Evaluation Framework for Traffic Information Systems, UMIC Workshop, 18.10.2010
  • A Data Stream-based Framework for Traffic Information Systems, Ericsson Eurolab, Aachen, 02.09.2010
  • Einführung in SQL Server Spatial, PASS (Professional Association for SQL Server) Regionalgruppe Ruhrgebiet, 12.08.2010
  • Dynamische Erstellung von SSIS-Paketen, PASS (Professional Association for SQL Server) Regionalgruppe Ruhrgebiet, 11.02.2010

Memberships and Posts

  • Public Relation Chair of the QDB Workshop held in conjunction with the VLDB 2016 in New Delhi, India
  • Workshop Chair of the IMMoA Workshop held in conjunction with the VLDB 2013 in Riva del Garda, Trento, Italy
  • Workshop Chair of the IMMoA Workshop held in conjunction with the VLDB 2012 in Istanbul, Turkey
  • Workshop Chair of the HIMoA Workshop held in conjunction with the MDM 2011 in Lulea, Sweden
  • Editor of the Special Issue on Information Management in Mobile Applications in the Pervasive and Mobile Computing Journal




Job openings



Person Publications

Sandra Geisler, Maria-Esther Vidal, Cinzia Cappielle, Bernadette Farias Loscio, Avigdor Gal, Matthias Jarke, Maurizio Lenzerini, Paolo Missier, Boris Otto, Elda Paja, Barbara Pernici, Jakob Rehof

Knowledge-driven data ecosystems towards data transparency

To be published in ACM Journal of Data and and Information Quality

Kai Frerich, Mark Bukowski, Sandra Geisler, Robert Farkas

On the Potential of Taxonomic Graphs to Improve Applicability and Performance for the Classification of Biomedical Patents

Applied Sciences

Sebastian Bader, Jaroslav Pullmann, Christian Mader, Sebastian Tramp, Christoph Quix, Andreas W. Müller, Haydar Akyürek, Matthias Böckmann, Benedikt T. Imbusch, Johannes Theissen-Lipp, Sandra Geisler, Christoph Lange

The International Data Spaces Information Model - An Ontology for Sovereign Exchange of Digital Content

The 19th International Semantic Web Conference (ISWC'20)

More publications…