Machine learning tasks such as regression, clustering, and classification are typically performed outside of database systems using dedicated tools, necessitating the extraction, transfor-mation, and loading of data. We argue that database systems when extended to enable automatic differentiation, gradient descent, and ...

Choosing the best join order is one of the main tasks of query optimization, as join ordering can easily affect query execution times by large factors. Finding the optimal join order is NP-hard in general, which means that the best known algorithms have exponential worst case complexity. As a consequence only relatively ...

The Hyper database system was started as an academic project at Technical University Munich. In 2016, the commercial spin-off of the academic Hyper database system was acquired by Tableau, a leader in the analytics and business intelligence (BI) platforms market. As a human-in-the-loop BI platform, Tableau products ...

Große Datenmengen in Wirtschaft und Wissenschaft werden klassischerweise in Daten-banksystemen verwaltet. Um die Daten für maschinelles Lernen sowie für die Datenanalyse zu nutzen, ist ein zeitintensiver zyklischer Transformations-und Verschiebeprozess nötig, da die Daten hierfür in anderen Formaten oder schlicht in ...