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Auflistung nach Autor:in "Weber, Alexander"

1 - 3 von 3
  • Konferenzbeitrag
    Performance comparison of TwinCat ADS for Python and Java
    (Softwaretechnik-Trends Band 43, Heft 4, 2023) Weber, Alexander; Eichelberger, Holger; Schreiber, Per; Wienrich, Svenja
    Real-time and in-process measurements are important in the manufacturing domain, e.g., for real-time process monitoring. For performance reasons, such data is often processed in virtualized environments on edge devices, as e.g., provided by the company Beckhoff. For exploring modern AI methods, integration with high-level languages such as Python or even with Industry 4.0 platforms for advanced data flows is needed. In this paper, we analyze the read/write perfor mance of a Beckhoff device integrated via Python or Java. For our experiments, we use a simulation on a PC as well as a networked setup with a Beckhoff device. We show that the Java-based solution is faster than the Python one by 2-3 times. We also show that small arrays can be read as fast as a single value, that there is no difference between operations for small or big data types and that there is no difference between reading and writing data.
  • Konferenzbeitrag
    Semantic methods and tools for information portals
    (INFORMATIK 2003 – Innovative Informatikanwendungen, Band 1, Beiträge der 33. Jahrestagung der Gesellschaft für Informatik e.V. (GI), 2003) Agarwal, Sudhir; Fankhauser, Peter; Gonzalez-Ollala, Jorge; Hartmann, Jens; Hollfelder, Silvia; Jameson, Anthony; Klink, Stefan; Lehti, Patrick; Ley, Michael; Rabbidge, Emma; Schwarzkopf, Eric; Shrestha, Nitesh; Stojanovic, Nenad; Studer, Rudi; Stumme, Gerd; Walter, Bernd; Weber, Alexander
    The paper describes a set of approaches for representing and accessing information within a semantically structured information portal, while offering the possibility to integrate own information. It discusses research performed within the project 'Semantic Methods and Tools for Information Portals (SemI-Port)'. In particular, it focuses on (1) the development of scalable storing, processing and querying methods for semantic data, (2) visualization and browsing of complex data inventories, (3) personalization and agent-based interaction, and (4) the enhancement of web mining approaches for use within a semantics-based portal.
  • Konferenzbeitrag
    Visualising and mining digital bibliographic data
    (Informatik 2004, Informatik verbindet, Band 2, Beiträge der 34. Jahrestagung der Gesellschaft für Informatik e.V. (GI), 2004) Klink, Stefan; Ley, Michael; Rabbidge, Emma; Reuther, Patrick; Walter, Bernd; Weber, Alexander
    Finding related publications and their correct bibliographical data is getting harder and harder due to the mass of unrequested information and the decreasing precision of many information providers. The DBLP Computer Science Bibliography is a service used by thousands of computer scientists which provides fundamental support for scientists searching for publications or other scientists in similar communities. This paper describes a user-friendly interface which plays the central role in searching, browsing, and mining of bibliographical data. After introducing the concept of multi-layered browsing and an integrated smart component for entering new data, DBL-Browser itself and various visualisations are described.