Open Data

1 to 6 of 14

14OCT 2025
2 Research
Dissertation: Open Collaborative Data Engineering With Subject-Matter Experts Using Domain-Speciﬁc Languages
Abstract: Open collaborative workflows are common, for example, in open-source software development or Wikipedia. They reduce costs for individual participants and can improve the overall quality of the result. A potential application domain for open collaboration is data engineering, especially for open data, which shares many qualities with open-source software as it can be freely […]
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20FEB 2025
2 Research
Research Paper: An Empirical Study on the Effects of Jayvee, a Domain-Specific Language for Data Engineering, on Understanding Data Pipeline Architectures
Abstract: A large part of data science projects is spent on data engineering. Especially in open data contexts, data quality issues are prevalent and are often tackled by non-professional programmers. We introduce and evaluate Jayvee, a domain-specific language for data engineering aimed at reducing barriers to building data pipelines. We show that a structured DSL […]
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27MAY 2024
4 Theses
Final Thesis: Performance Optimization for JValue: Implementing and Evaluating Microservice Architectures
Abstract: The emergence of microservice architectures presents a paradigm shift in application development, offering a modular approach where applications are composed of small, independent services, that focus on one specific task. While this architecture fosters many advantages regarding flexibility, scalability, and maintainability, it introduces challenges, particularly in testing. Crucially, performance testing serves as a cornerstone […]Abstract: The emergence of microservice architectures presents a paradigm shift in application development, offering a modular approach where applications are composed of small, independent services, that focus on one specific task. While this architecture fosters many advantages regarding flexibility, scalability, and maintainability, it introduces challenges, particularly in testing. Crucially, performance testing serves as a cornerstone […]
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24MAY 2024
4 Theses
Final Thesis: Integrating Open Data License Information into Data Pipelines
Abstract: Today a lot of open data is available on the internet. To utilize this information to its full potential, it is often necessary to combine multiple datasets into new datasets. An important part of this is understanding and following the requirements of the licenses attached to them. This thesis presents a solution that can […]
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21FEB 2024
4 Theses
Final Thesis: Token-based Authentication and Authorization in Microservices
Abstract: Microservices represent an architectural approach that is gaining more and more importance to realize highly scalable, reliable and maintainable systems within an agile development process. The advantages of microservice architecture are accompanied by the challenge of designing a distributed system. In such a distributed system, authorization and authentication pose a particular problem. This is […]Abstract: Microservices represent an architectural approach that is gaining more and more importance to realize highly scalable, reliable and maintainable systems within an agile development process. The advantages of microservice architecture are accompanied by the challenge of designing a distributed system. In such a distributed system, authorization and authentication pose a particular problem. This is […]
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19FEB 2024
4 Theses
Final Thesis: Design and Implementation of a Web-based Editor for Data Pipelines
Abstract: The goal for this thesis is to contribute to the JValue Hub. The thesis is covering the design and development of the new ad-hoc runtime feature for the JValue. Pipeline Editor. During the process, pipeline and code editor market were assessed and a new layout for the JValue editor was created. The new added […]
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