TY - JOUR A1 - Schweser, Thomas A1 - Stiebitz, Michael T1 - Degree choosable signed graphs JF - Discrete Mathematics Y1 - 2025 U6 - https://doi.org/10.1016/j.disc.2017.01.007 SN - 0012-365X VL - 340 IS - 5 SP - 882 EP - 891 PB - Elsevier BV ER - TY - BOOK A1 - Stiebitz, Michael A1 - Schweser, Thomas A1 - Toft, Bjarne T1 - Brooks' Theorem BT - Graph Coloring and Critical Graphs T3 - Springer Monographs in Mathematics Y1 - 2025 SN - 9783031500640 U6 - https://doi.org/10.1007/978-3-031-50065-7 PB - Springer Nature Switzerland ER - TY - GEN A1 - Kläbe, Steffen A1 - Hagedorn, Stefan A1 - Gropengießer, Francis A1 - Schweser, Thomas T1 - Beyond the Data Warehouse: Modern and fast Data Analytics in Actian Vector. T2 - Datenbanksysteme für Business, Technologie und Web (BTW 2025) N2 - Modern data analytics cover a wide range of tools and frameworks besides traditional SQL-based analytics, leading to the need to transform traditional data warehouse solutions into data platforms. In this paper we focus on ecosystem integration, query performance and ease-of-use as key differentiators. We spotlight capabilities we introduced into our analytical database system Actian Vector with respect to these differentiators and highlight challenges we faced when applying research ideas to a production-ready system. The described capabilities cover ecosystem integrations with Apache Spark and a containerized services framework, cost model optimizations for robust query planning and several features to improve usability and manageability of the system. Y1 - 2025 U6 - https://doi.org/10.18420/BTW2025-35 SP - 691 EP - 697 ER - TY - GEN A1 - Junker, Elmar A1 - Naumer, Birgit A1 - Schweser, Thomas A1 - Deschle-Prill, Silke A1 - Kraus, Nicole A1 - Lackovic, Josip A1 - Lux, Christine A1 - Sanewski, Anne T1 - Reduzierte MINT-Durchfallraten durch KI: BT - Kombination von Predictive Learning Analytics und Peer-Coaching erzielt individuelles Lernfeedback und höheren Lernerfolg KW - KI KW - Feedback KW - Peer-Coaching KW - Coaching Y1 - 2026 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:861-opus4-32848 ER -