1 code implementation • 13 Feb 2024 • Philipp Seifer, Daniel Hernández, Ralf Lämmel, Steffen Staab
However, it becomes challenging to understand what graph data can be expected at the end of a data processing pipeline without knowing the particular input data: Shape constraints on the input graph may affect the output graph, but may no longer apply literally, and new shapes may be imposed by the query template.
no code implementations • 29 Nov 2023 • Kevin Klein, Alyssa Wohde, Alexander V. Gorelik, Volker Heyd, Ralf Lämmel, Yoan Diekmann, Maxime Brami
The contribution of this paper is a new workflow for collecting data from archaeological find catalogues available as legacy resources, such as archaeological drawings and photographs in large unsorted PDF files; the workflow relies on custom software (AutArch) supporting image processing, object detection, and interactive means of validating and adjusting automatically retrieved data.
1 code implementation • 12 Jul 2021 • Philipp Seifer, Ralf Lämmel, Steffen Staab
In RDF representations, this error can be addressed by shape languages such as SHACL or ShEx, which allow for checking whether graphs are valid with respect to a set of domain constraints.
1 code implementation • 28 Feb 2021 • Wardah Mahmood, Daniel Strüber, Thorsten Berger, Ralf Lämmel, Mukelabai Mukelabai
Two opposing strategies are commonly used to create variants: software clone & own and software configuration with an integrated platform.
Software Engineering
no code implementations • 15 Apr 2020 • John Ahlgren, Maria Eugenia Berezin, Kinga Bojarczuk, Elena Dulskyte, Inna Dvortsova, Johann George, Natalija Gucevska, Mark Harman, Shan He, Ralf Lämmel, Erik Meijer, Silvia Sapora, Justin Spahr-Summers
Software-intensive organizations rely on large numbers of software assets of different types, e. g., source-code files, tables in the data warehouse, and software configurations.
no code implementations • 13 Apr 2020 • Ralf Lämmel, Alvin Kerber, Liane Praza
Understanding what a software engineer (a developer, an incident responder, a production engineer, etc.)
no code implementations • 11 Apr 2020 • John Ahlgren, Maria Eugenia Berezin, Kinga Bojarczuk, Elena Dulskyte, Inna Dvortsova, Johann George, Natalija Gucevska, Mark Harman, Ralf Lämmel, Erik Meijer, Silvia Sapora, Justin Spahr-Summers
We introduce the Web-Enabled Simulation (WES) research agenda, and describe FACEBOOK's WW system.
1 code implementation • 5 Sep 2011 • William R. Cook, Ralf Lämmel
This paper is a short tutorial introduction to online partial evaluation.
Programming Languages