@inproceedings{41134, author = {{Gottschalk, Sebastian and Bhat, Rakshit and Weidmann, Nils and Kirchhoff, Jonas and Engels, Gregor}}, booktitle = {{Proceedings of the 25th International Conference on Model Driven Engineering Languages and Systems: Companion Proceedings}}, publisher = {{ACM}}, title = {{{Low-code experimentation on software products}}}, doi = {{10.1145/3550356.3561572}}, year = {{2022}}, } @article{35556, author = {{Tao, Youshan and Winkler, Michael}}, journal = {{Proceedings of the Royal Society of Edinburgh Section A: Mathematics}}, pages = {{81--101}}, title = {{{Asymptotic stability of spatial homogeneity in a haptotaxis model for oncolytic virotherapy.}}}, volume = {{152}}, year = {{2022}}, } @article{35532, author = {{Li, Genglin and Winkler, Michael}}, journal = {{Communications on Pure and Applied Analysis}}, pages = {{687--784}}, title = {{{Nonnegative solutions to a doubly degenerate nutrient taxis system }}}, volume = {{21}}, year = {{2022}}, } @phdthesis{35188, author = {{Eidens, Fabian}}, title = {{{Privacy-Preserving Cryptography: Attribute-Based Signatures and Updatable Credentials}}}, doi = {{10.17619/UNIPB/1-1653}}, year = {{2022}}, } @inproceedings{32305, author = {{Karakaya, Kadiray and Yigitbas, Enes and Engels, Gregor}}, booktitle = {{Proceedings of the 9th International Working Conference on Human-Centered Software Engineering (HCSE'22)}}, publisher = {{Springer}}, title = {{{Automated UX Evaluation for User-Centered Design of VR Interfaces}}}, year = {{2022}}, } @article{34700, author = {{Gharibian, Sevag and Santha, Miklos and Sikora, Jamie and Sundaram, Aarthi and Yirka, Justin}}, issn = {{1016-3328}}, journal = {{Computational Complexity}}, keywords = {{Computational Mathematics, Computational Theory and Mathematics, General Mathematics, Theoretical Computer Science}}, number = {{2}}, publisher = {{Springer Science and Business Media LLC}}, title = {{{Quantum generalizations of the polynomial hierarchy with applications to QMA(2)}}}, doi = {{10.1007/s00037-022-00231-8}}, volume = {{31}}, year = {{2022}}, } @article{34839, abstract = {{We describe the relations among the ℓ-torsion conjecture, a conjecture of Malle giving an upper bound for the number of extensions, and the discriminant multiplicity conjecture. We prove that the latter two conjectures are equivalent in some sense. Altogether, the three conjectures are equivalent for the class of solvable groups. We then prove the ℓ-torsion conjecture for ℓ-groups and the other two conjectures for nilpotent groups.}}, author = {{Klüners, Jürgen and Wang, Jiuya}}, issn = {{0002-9939}}, journal = {{Proceedings of the American Mathematical Society}}, keywords = {{Applied Mathematics, General Mathematics}}, number = {{7}}, pages = {{2793--2805}}, publisher = {{American Mathematical Society (AMS)}}, title = {{{ℓ-torsion bounds for the class group of number fields with an ℓ-group as Galois group}}}, doi = {{10.1090/proc/15882}}, volume = {{150}}, year = {{2022}}, } @article{34835, abstract = {{We prove an upper bound for the asymptotics of counting functions of number fields with nilpotent Galois groups. }}, author = {{Klüners, Jürgen}}, issn = {{0065-1036}}, journal = {{Acta Arithmetica}}, keywords = {{Algebra and Number Theory}}, number = {{2}}, pages = {{165--184}}, publisher = {{Institute of Mathematics, Polish Academy of Sciences}}, title = {{{The asymptotics of nilpotent Galois groups}}}, doi = {{10.4064/aa211207-16-5}}, volume = {{204}}, year = {{2022}}, } @article{34065, author = {{Kirchgässner, Wilhelm and Wallscheid, Oliver and Böcker, Joachim}}, issn = {{0952-1976}}, journal = {{Engineering Applications of Artificial Intelligence}}, publisher = {{Elsevier BV}}, title = {{{Thermal neural networks: Lumped-parameter thermal modeling with state-space machine learning}}}, doi = {{10.1016/j.engappai.2022.105537}}, volume = {{117}}, year = {{2022}}, } @inproceedings{32859, author = {{Kirchgässner, Wilhelm and Wallscheid, Oliver and Böcker, Joachim}}, booktitle = {{2022 International Power Electronics Conference (IPEC-Himeji 2022- ECCE Asia)}}, publisher = {{IEEE}}, title = {{{Learning Thermal Properties and Temperature Models of Electric Motors with Neural Ordinary Differential Equations}}}, doi = {{10.23919/ipec-himeji2022-ecce53331.2022.9807209}}, year = {{2022}}, } @article{32307, abstract = {{The development of new business models is essential for startups to become successful, as well as for established companies to explore new business opportunities. However, developing such business models is a continuous challenging activity where different tasks need to be performed, and business decisions need to be made. Both have to fit the constantly changeable situation in which the business model is developed to reduce the risk of developing ineffective business models with low market penetration. Therefore, a method for developing situation-specific business models is needed. As a solution, we refine the concept of situational method engineering (SME) to business model development. SME, in turn, provides means to construct situation-specific development methods out of fragments from a method repository. We develop a concept for the continuous situation-specific development of business models based on design science. The approach uses the roles of a domain expert, a method engineer, and a business developer together with a repository with method fragments for developing business models and a repository with modeling artifacts for supporting the development. Both repositories are filled by utilizing the experience of domain experts. Out of these repositories, situation-specific development methods for developing business models can be continuously composed based on the changeable situation by the method engineer and enacted by the business developer. We implement it as an open-source tool and evaluate its applicability in an industrial case study of developing a business model for a local event platform. Our results show that situation awareness supports the continuous development of business models.}}, author = {{Gottschalk, Sebastian and Yigitbas, Enes and Nowosad, Alexander and Engels, Gregor}}, journal = {{International Journal on Software and Systems Modeling (SoSyM) }}, keywords = {{Business Model Development, Situational Method Engineering, Situation-specific, Business Model Canvas, Continuous Development}}, title = {{{Continuous Situation-specific Development of Business Models: Knowledge Provision, Method Composition, Method Enactment}}}, year = {{2022}}, } @inproceedings{32309, abstract = {{Due to the increasing influences of a VUCA world, design thinking workshops have been established as a standard technique to build solutions according to uncertain customer needs. Concerning the ongoing pandemic and rising development of solutions across organizations, more and more workshops were conducted online with software support. However, existing software tools insufficiently address the different workshop situations in terms of the process (i.e., fixed tasks to conduct), the place (e.g., static online whiteboards), and people (i.e., synchronous working of all stakeholders). Therefore, we propose a design science study to develop a situation-specific software support that can be configured with flexible development processes, different places, and task-related people. Based on practical experience in existing research projects, we derive the initial design requirements and map them to a set of design principles. Out of that, we design a concept with its implementation as a software tool and point out open challenges. }}, author = {{Gottschalk, Sebastian and Yigitbas, Enes and Nowosad, Alexander and Engels, Gregor}}, booktitle = {{Proceedings of the 5th International Workshop on Software-intensive Business (IWSiB'22) }}, keywords = {{design thinking, situation-specific, cross-organizational, software support}}, publisher = {{ACM}}, title = {{{Towards Situation-specific Software Support for Cross-organizational Design Thinking Processes}}}, year = {{2022}}, } @inproceedings{33066, author = {{Yigitbas, Enes and Schmidt, Maximilian and Bucchiarone, Antonio and Gottschalk, Sebastian and Engels, Gregor}}, booktitle = {{Proceedings of the 25th International Conference on Model Driven Engineering Languages and Systems (MODELS 2022) }}, publisher = {{ACM / IEEE}}, title = {{{Gamification-based UML Learning Environment in Virtual Reality}}}, year = {{2022}}, } @inproceedings{32308, author = {{Yigitbas, Enes and Krois, Sebastian and Renzelmann, Timo and Engels, Gregor}}, booktitle = {{Proceedings of the 10th International Conference on Serious Games and Applications for Health (SeGAH'22) }}, publisher = {{IEEE}}, title = {{{Comparative Evaluation of AR-based, VR-based, and Traditional Basic Life Support Training}}}, year = {{2022}}, } @article{32306, author = {{Weidmann, Nils and Yigitbas, Enes and Anjorin, Anthony and Srivastava, Ankita and Jose, Jane}}, journal = {{The Journal of Object Technology }}, title = {{{Human-in-the-Loop Large-Scale Model Transformations with the VICToRy Debugger }}}, year = {{2022}}, } @phdthesis{30239, author = {{Kolb, Christina}}, title = {{{Competitive Routing in Hybrid Communications Networks and Message efficient SetCover in AdHoc Networks}}}, doi = {{10.17619/UNIPB/1-1673 }}, year = {{2022}}, } @article{21096, abstract = {{While many research in distributed computing has covered solutions for self-stabilizing computing and topologies, there is far less work on self-stabilization for distributed data structures. However, when peers in peer-to-peer networks crash, a distributed data structure may not remain intact. We present a self-stabilizing protocol for a distributed data structure called the Hashed Patricia Trie (Kniesburges and Scheideler WALCOM'11) that enables efficient prefix search on a set of keys. The data structure has many applications while offering low overhead and efficient operations when embedded on top of a Distributed Hash Table. Especially, longest prefix matching for x can be done in O(log |x|) hash table read accesses. We show how to maintain the structure in a self-stabilizing way, while assuring a low overhead in a legal state and an asymptotically optimal memory demand of O(d) bits, where d is the number of bits needed for storing all keys.}}, author = {{Knollmann, Till and Scheideler, Christian}}, issn = {{0890-5401}}, journal = {{Information and Computation}}, title = {{{A self-stabilizing Hashed Patricia Trie}}}, doi = {{10.1016/j.ic.2021.104697}}, year = {{2022}}, } @inproceedings{32342, author = {{Ahmed, Qazi Arbab and Platzner, Marco}}, location = {{Pafos, Cyprus}}, publisher = {{IEEE Computer Society Annual Symposium on VLSI (ISVLSI,2022)}}, title = {{{On the Detection and Circumvention of Bitstream-Level Trojans in FPGAs}}}, year = {{2022}}, } @article{44163, author = {{Rehlaender, Philipp and Wallscheid, Oliver and Schafmeister, Frank and Böcker, Joachim}}, issn = {{0885-8993}}, journal = {{IEEE Transactions on Power Electronics}}, keywords = {{Electrical and Electronic Engineering}}, number = {{11}}, pages = {{13413--13427}}, publisher = {{Institute of Electrical and Electronics Engineers (IEEE)}}, title = {{{LLC Resonant Converter Modulations for Reduced Junction Temperatures in Half-Bridge Mode and Transformer Flux in the On-the-Fly Morphing Thereto}}}, doi = {{10.1109/tpel.2022.3180758}}, volume = {{37}}, year = {{2022}}, } @inproceedings{42894, author = {{Kirchgässner, Wilhelm and Wöckinger, Daniel and Wallscheid, Oliver and Bramerdorfer, Gerd and Böcker, Joachim}}, booktitle = {{IKMT 2022; 13. GMM/ETG-Symposium}}, pages = {{1--6}}, title = {{{Application of Thermal Neural Networks on a Small-Scale Electric Motor}}}, year = {{2022}}, }