TY - GEN A1 - Weber, Karsten T1 - Digitalisierung, KI, Robotik – Visionen für die Gesundheitsversorgung von morgen Y1 - 2024 ER - TY - GEN A1 - Weber, Karsten T1 - Verstand, Vernunft, Seele: Was unterscheidet KI-Systeme von Menschen? Y1 - 2024 ER - TY - GEN A1 - Weber, Karsten T1 - KI und Big Data: Wenn ein Hype zum ethischen Stolperstein wird Y1 - 2025 ER - TY - GEN A1 - Weber, Karsten T1 - Aspekte der sozialen Nachhaltigkeit am Beispiel des Einsatzes von KI. Ergebnisse einer Befragung von zivilgesellschaftlichen Organisationen in der Grenzregion im Bereich Umweltschutz, Sozial- und Gesundheitswesen T2 - Aspekty sociální udržitelnosti na příkladu využití umělé inteligence. Výsledky průzkumu mezi občanskými organizacemi v pohraniční oblasti v oblasti ochrany životního prostředí, sociálních věcí a zdravotnictví a lidských práv Y1 - 2025 ER - TY - GEN A1 - Weber, Karsten T1 - Künstliche Intelligenz für Nichtregierungsorganisationen (KINiro) – Bedarf, Akzeptanz und Umsetzungsmöglichkeiten Y1 - 2025 ER - TY - GEN A1 - Weber, Karsten T1 - Zwischen Fortschritt und Verantwortung: KI, Nachhaltigkeit und wir Y1 - 2025 ER - TY - GEN A1 - Weber, Karsten T1 - Künstliche Intelligenz: Ökonomische und ethische Aspekte Y1 - 2025 ER - TY - GEN A1 - Weber, Karsten T1 - KI ./. Demokratie BT - Ein kompliziertes Verhältnis Y1 - 2024 ER - TY - CHAP A1 - Vetter, Miriam A1 - Haug, Sonja A1 - Weber, Karsten ED - BBSR – Bundesinstitut für Bau-, Stadt- und Raumforschung im Bundesamt für Bauwesen und Raumordnung, T1 - Die Zukunft der Notfallerkennung in Haushalten älterer Menschen : eine Technikbewertung T2 - Demografische Alterungsprozesse : Chancen und Herausforderungen für die Regionalentwicklung N2 - Die meisten älteren Personen wünschen sich ein Altern in der Häuslichkeit, auch bei zunehmendem Anteil an Pflegebedürftigen in der Bevölkerung. Der Pflegenotstand im ländlichen Raum und im ambulanten Bereich stellt die häusliche Versorgung jedoch vor Herausforderungen. Die Digitalisierung soll dabei Abhilfe schaffen. Hausnotrufsysteme sind eine weit verbreitete Form digitaler Assistenzsysteme, die auf Knopfdruck Hilferufe an Hausnotrufzentralen übermitteln. Sie stehen jedoch in der Kritik, da die Handsender aus Angst vor Stigmatisierung von den Pflegebedürftigen oft abgelegt und daher trotz Notlage nicht genutzt werden. Neben vielfältiger Forschung zu digitalen Assistenzsystemen werden zunehmend technische Prototypen zu Smart-Meter-Anwendungen zur Notfallerkennung für ältere Menschen entwickelt, die mithilfe von Stromverbrauchsdaten und Künstlicher Intelligenz auf Inaktivität und somit mögliche Notfälle schließen. Smart-Meter sind intelligente Messsysteme, die für bestimmte Privathaushalte gesetzlich verpflichtend eingeführt werden, um Netzstabilität zu gewährleisten. Dieser Beitrag stellt erste Ergebnisse einer Technikbewertung mithilfe eines Mixed-Method-Ansatzes vor. Ein Drittel der Expertinnen und Experten sieht eine positive Nutzungsintention. Die Bevölkerungsbefragung zeigt Unentschlossenheit bezüglich der neuen Technologie. Eine Nutzungsintention besteht vor allem bei jüngeren technikaffinen Personen, d.h. den älteren Menschen der Zukunft. KW - Notfallerkennung KW - Smart Meter KW - Akzeptanz Y1 - 2025 U6 - https://doi.org/10.58007/gcpc-7j48 SN - 1868-0097 SP - 126 EP - 136 PB - BBSR – Bundesinstitut für Bau-, Stadt- und Raumforschung im Bundesamt für Bauwesen und Raumordnung (BBR) CY - Bonn ER - TY - JOUR A1 - Bedbur, Stefan A1 - Kamps, Udo A1 - Schmiedt, Anja Bettina T1 - A flexible model of ordered random variables for non-metallic inclusions in steels and related statistical inference JF - Applied Mathematical Modelling N2 - In a data set of non-metallic inclusion sizes in samples from engineering steel, common order statistics fail to serve as a suitable model for ascendingly ordered measurements within single samples. Therefore, a flexible model of ordered random variables is proposed, which allows for changes of distributions described by model parameters. Joint maximum likelihood estimation of these parameters and the shape parameter of an underlying left-truncated Weibull distribution is considered, and a model test is developed for the null-hypothesis of common order statistics being an adequate model. To overcome small data situations, a link-function approach is examined in order to reduce the number of involved model parameters as well as to propose to use a link-function parameter as a material indicator. An asymptotic test is provided to check for the presence of a linear link function, and tests for hypotheses about two link-function parameters are studied. Moreover, the construction of simultaneous confidence regions for the link-function parameters as well as of confidence bands for the entire graph of the link function are presented. Throughout, the findings are applied to the real metallurgical data set. Similar problems and data structures arise in other fields of material science and applications such as geology. Y1 - 2026 U6 - https://doi.org/10.1016/j.apm.2025.116284 SN - 0307-904X N1 - Corresponding author der OTH Regensburg: Anja Bettina Schmiedt VL - 149 PB - Elsevier ER - TY - JOUR A1 - Schmiedt, Anja B. A1 - Empacher, Christina A1 - Kamps, Udo T1 - One- and two-sided prediction intervals for future Pareto record values with applications JF - Journal of Statistical Theory and Applications N2 - Based on upper record values in a series of observations over time from a Pareto distribution, an exact and several approximate one-sided and two-sided prediction intervals for the next record value (or for another future record value) to appear are studied and compared by means of an extensive simulation study. The performances of the prediction intervals are evaluated and recommendations are proposed for what method should be used in a given situation with respect to the form of the prediction interval on the one hand and to the tail behaviour on the other. The proposed methods are applied to insurance, environmental and sports data, where the respectively fitted Pareto distributions show a different tail behaviour. As a result, it is seen that although the number of observed record values in the presented real data applications is rather small, as it is usually the case, the selected prediction intervals are of practical use. KW - Interval prediction KW - Pareto distribution KW - Real data analyses KW - Record values KW - Simulation study Y1 - 2025 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:898-opus4-81605 SN - 2214-1766 N1 - Corresponding author der OTH Regensburg: Anja B. Schmiedt PB - Springer ER - TY - JOUR A1 - Dotter, Caroline A1 - Haug, Sonja A1 - Schnell, Rainer A1 - Raptis, Georgios A1 - Weber, Karsten T1 - Sharing health data for research purposes: results of a population survey in Germany JF - BMC health services research N2 - BACKGROUND: Increased use of health data has the potential to improve both health care and health policies. Several recent policy initiatives at the European and German legislative levels aim to increase the primary and secondary use of health data. However, little is known about general population views on health data access for research. Most studies are based on subsets defined by specific illnesses. METHODS: We commissioned a national computer-assisted dual-frame telephone survey (landline and mobile). Logit estimation models were used to identify predictors of willingness to provide access to health data to different organizations (universities in Germany, universities worldwide, German government organizations, pharmaceutical companies). RESULTS: A high willingness to share health data for research purposes is observed, depending on the specific data recipient. The willingness is highest for research at universities in Germany and German governmental organizations, and lowest regarding research by pharmaceutical companies. The main drivers for sharing health data are the level of trust in public institutions, the respondents' assessment of the seriousness and likelihood of data misuse, and the level of digital literacy. Age, gender, and level of education have small effects and do not determine the willingness to share health data for all organizations. CONCLUSION: We present evidence from a random sample of the German population. The results indicate widespread support among the population for providing access to health data for research purposes. Similar to findings in other countries, the willingness depends strongly on the recipient of the data. This paper evaluates the impact of various determinants - identified in previous qualitative and quantitative research - on the willingness of the German population to share health data. While previous studies have found that patients are generally more willing to share health data, we found that the presence of a medical precondition does not translate into respondents' unequivocal support for health data sharing. We identify privacy concerns, general trust, and digital literacy as key factors influencing the willingness to share health data. Therefore, policymakers and stakeholders need to ensure and communicate the necessary privacy protection measures to increase the willingness of the German population to share health data. Y1 - 2025 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:898-opus4-81622 N1 - Corresponding author der OTH Regensburg: Caroline Dotter VL - 25 PB - BMC ER - TY - CHAP A1 - Schwägerl, Felix A1 - Uhrig, Sabrina T1 - Tool Support for the Evaluation of Matching Algorithms in the Eclipse Modeling Framework T2 - Proceedings of the 1st International Conference on Model-Driven Engineering and Software Development, February 19-21, 2013, in Barcelona, Spain, Vol. 1 N2 - In the field of model-driven development, sophisticated support for comparing model versions is urgently needed. Unfortunately, algorithms for model matching have been rarely evaluated so far. This paper deals with two extensions to the Eclipse Modeling Framework (EMF) that facilitate the evaluation of matching algorithms for EMF models, with the goal to combine user involvement and automated testing in the evaluation process. First a tree editor is presented that allows for the manual and semi-automated creation of match models which formalize the intended matching result. Second a benchmarking procedure is implemented which – given the intended match and the actual results of matching algorithms – automatically derives the number of a and b errors in a target-performance comparison. These results are valuable for drawing conclusions about the specific qualities of matching algorithms or for finding an adequate set of parameters for a configurable algorithm. KW - EMF Models KW - Model Comparison KW - Matching Algorithms KW - Evaluation Y1 - 2013 SN - 978-989-8565-42-6 U6 - https://doi.org/10.5220/0004310801010110 SN - 2184-4348 SP - 101 EP - 110 PB - SciTePress - Science and and Technology Publications ER - TY - CHAP A1 - Buchmann, Thomas A1 - Schwägerl, Felix T1 - Using Meta-code Generation to Realize Higher-order Model Transformations T2 - Proceedings of the 8th International Joint Conference on Software Technologies, July 29-31, 2013, in Reykjavík, Iceland, Vol. 1 N2 - Model-driven engineering is a wide-spread paradigm in modern software engineering. During the last couple of years, many tools and languages have been developed, which are especially designed for model transformations — a discipline which is needed in many model-driven engineering approaches. While most of the existing model-to-model tools and languages are tailored towards batch transformations for specific model instances, they lack support for generic transformation problems, where the metamodel is unknown beforehand. In this paper we present a two-step meta-code generation approach that derives a metamodel-specific modelto- model transformation from a model-to-text transformation. The approach has been successfully applied to the problem of product derivation in model-driven software product lines. KW - Model-driven Development KW - M2M Transformations KW - Model Transformations KW - Higher-order Transformations KW - Software Product Lines Y1 - 2013 SN - 978-989-8565-68-6 U6 - https://doi.org/https://doi.org/10.5220/0004522305360541 SP - 536 EP - 541 PB - SciTePress - Science and and Technology Publications ER - TY - JOUR A1 - Winter, Lina A1 - Artinger, Annalena A1 - Böck, Hendrik A1 - Ramakrishnan, Vignesh A1 - Reible, Bruno A1 - Albin, Jan A1 - Schüffler, Peter J. A1 - Raptis, Georgios A1 - Brochhausen, Christoph T1 - Developing a smart and scalable tool for histopathological education—PATe 2.0 JF - Journal of Pathology Informatics N2 - Digital microscopy plays a crucial role in pathology education, providing scalable and standardized access to learning resources. In response, we present PATe 2.0, a scalable redeveloped web-application of the former PATe system from 2015. PATe 2.0 was developed using an agile, iterative process and built on a microservices architecture to ensure modularity, scalability, and reliability. It integrates a modern web-based user interface optimized for desktop and tablet use and automates key workflows such as whole-slide image uploads and processing. Performance tests demonstrated that PATe 2.0 significantly reduces tile request times compared to PATe, despite handling larger tiles. The platform supports open formats like DICOM and OpenSlide, enhancing its interoperability and adaptability across institutions. PATe 2.0 represents a robust digital microscopy solution in pathology education enhancing usability, performance, and flexibility. Its design enables future integration of research algorithms and highlights it as a pivotal tool for advancing pathology education and research. Y1 - 2026 U6 - https://doi.org/10.1016/j.jpi.2025.100535 SN - 2153-3539 VL - 20 PB - Elsevier ER - TY - GEN A1 - Weber, Karsten T1 - Künstliche Intelligenz als vielschichtige Herausforderung Y1 - 2025 ER - TY - RPRT A1 - Bhardwaj, Prakhar A1 - Hauer, Franziska A1 - Mücke, Vanessa A1 - Dotter, Caroline A1 - Haug, Sonja A1 - Weikl, Simone A1 - Weber, Karsten T1 - Recording and understanding multi- and intermodal mobility - a review N2 - The transition to sustainable mobility requires detailed knowledge of actual mobility behavior. Recording mobility behavior through conventional, aggregated, or retrospective survey methods (e.g., counting stations, travel diaries) may yield incomplete insights. In addition, these methods are often expensive, prone to error, or not scalable. The aim of this literature review is to provide a systematic overview of the current state of the literature on recording and analysis of individual mobility data and, based on this, to identify possible research gaps and potential. The exploratory literature review includes social science surveys on multi- and intermodal mobility behavior, as well as an overview of possible ways to analyze travel data. The focus of the latter is on identifying relevant data sources and methodological approaches for segmentation, identification of transport mode, and trip purpose determination. Results from recent studies show that sensor-based data collection alone is not sufficient to fully and accurately map mobility behavior. One possible solution is a “best-of-both-worlds” approach that combines passive, automatic mobility data collection via smartphone sensors with targeted user corrections and additions (“human-in-the-loop”) within an app. The literature review shows that this approach yields the best data quality. Combining mobility surveys with passive collection of mobility data provides a comprehensive, accurate, and complete overview of mobility behavior. KW - multimodal mobility KW - mobility Y1 - 2025 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:898-opus4-87427 CY - Regensburg ER - TY - GEN A1 - Hauer, Franziska A1 - Haug, Sonja A1 - Scharf, Anna A1 - Schultz, Maximilian A1 - Weber, Karsten T1 - Quantitative Befragung zu Künstlicher Intelligenz für Nichtregierungsorganisationen -Fragebogen und Codebuch N2 - Künstliche Intelligenz (KI) stellt ein wichtiges Thema der Digitalisierung dar und hat das Potenzial viele Arbeitsfelder grundlegend zu verändern. Mit dem Einsatz von KI wird die Hoffnung verbunden durch Automatisierung Zeit und Geld zu sparen. Dies könnte besonders interessant für Organisationen sein, die wenig Ressourcen zur Verfügung haben, da sie nicht gewinnorientiert oder ehrenamtlich arbeiten. Dazu zählen Nichtregierungsorganisationen (NRO), die einen wichtigen Bestandteil der Zivilgesellschaft darstellen. Aufgrund der komplexer werdenden Arbeit von NROs scheint KI Möglichkeiten zur Bewältigung aktueller und zukünftiger Herausforderungen zu bieten. Über den Einsatz von KI in NROs ist derzeit jedoch wenig bekannt. Es wurde eine quantitative Querschnittstudie deutscher Nichtregierungsorganisationen (NRO) zum Thema KI durchgeführt. Der Web-Survey baut auf den Erkenntnissen des Scoping Reviews und der qualitativen Interviews auf und vertieft den Einblick in die Bereiche aktuelle Nutzung von KI, Wissenstand in den Organisationen sowie vorhandene und noch benötigte Ressourcen. Dafür wurden 343 NROs verschiedener Größen und Handlungsfelder befragt und die Ergebnisse quantitativ analysiert. KW - Künstliche Intelligenz KW - NGO Y1 - 2025 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:898-opus4-87066 N1 - Hauer, Franziska; Haug, Sonja; Scharf, Anna; Schultz, Maximilian; Weber, Karsten (2024): Künstliche Intelligenz für Nichtregierungsorganisationen - Quantitative Erforschung der Umsetzung in deutschen NROs. 3. Arbeitspapier. OTH Regensburg. Regensburg. DOI: 10.13140/RG.2.2.11094.66883 CY - Regensburg ER - TY - RPRT A1 - Bhardwaj, Prakhar A1 - Hauer, Franziska A1 - Mücke, Vanessa A1 - Dotter, Caroline A1 - Haug, Sonja A1 - Weikl, Simone A1 - Weber, Karsten T1 - Multi- und intermodale Mobilität erfassen und verstehen - eine Literaturübersicht N2 - Die Transformation zu nachhaltiger Mobilität erfordert eine detaillierte Erfassung des tatsächlichen Mobilitätsverhaltens, was durch herkömmliche, aggregierte oder retrospektive Erhebungsmethoden (z.B. Zählstellen, Wegetagebücher) nicht vollständig gelingt. Zudem sind diese Methoden oft teuer, fehleranfällig oder nicht nachhaltig skalierbar. Ziel dieser Literaturübersicht ist es, einen systematischen Überblick über den aktuellen Forschungsstand zur Erhebung und Analyse individueller Mobilitätsdaten zu geben und darauf aufbauend mögliche Forschungslücken sowie Potentiale zu identifizieren. Die explorative Literaturrecherche umfasst sozialwissenschaftliche Erhebungen zu multi- und intermodalem Mobilitätsverhalten, sowie einen Überblick über Analysemöglichkeiten von Wegedaten. Der Fokus liegt auf der Identifikation relevanter Datenquellen und methodischer Ansätze zur Segmentierung, Verkehrsmittelerkennung und Wegezweckbestimmung. Ergebnisse aus aktuellen Studien verdeutlichen, dass ausschließlich sensorgestützte Datenerhebungen bisher nicht ausreichen, um Mobilitätsverhalten vollumfänglich und präzise abzubilden. Eine mögliche Lösung ist ein "Best-of-both-worlds-Ansatz, der die passive, automatische Mobilitätsdatenerfassung via Smartphone-Sensorik mit gezielten Nutzerkorrekturen und Ergänzungen ("Human-in-the-Loop") innerhalb einer App kombiniert. Die Literaturauswertung zeigt, dass auf diesem Weg die beste Datenqualität gewonnen werden kann. Durch die Kombination von Mobilitätsbefragung mit passiver Erhebung von Mobilitätsdaten kann ein umfassender, möglichst vollständiger und korrekter Überblick über das Mobilitätsverhalten gewonnen werden. KW - KI KW - Mobilität Y1 - 2025 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:898-opus4-87415 CY - Regensburg ER - TY - CHAP A1 - Franz, Maja A1 - Winker, Tobias A1 - Groppe, Sven A1 - Mauerer, Wolfgang T1 - Hype or Heuristic? Quantum Reinforcement Learning for Join Order Optimisation T2 - 2024 IEEE International Conference on Quantum Computing and Engineering (QCE), 15-20 September 2024, Montreal, QC, Canada N2 - Identifying optimal join orders (JOs) stands out as a key challenge in database research and engineering. Owing to the large search space, established classical methods rely on approximations and heuristics. Recent efforts have successfully explored reinforcement learning (RL) for JO. Likewise, quantum versions of RL have received considerable scientific attention. Yet, it is an open question if they can achieve sustainable, overall practical advantages with improved quantum processors. In this paper, we present a novel approach that uses quantum reinforcement learning (QRL) for JO based on a hybrid variational quantum ansatz. It is able to handle general bushy join trees instead of resorting to simpler left-deep variants as compared to approaches based on quantum(-inspired) optimisation, yet requires multiple orders of magnitudes fewer qubits, which is a scarce resource even for post-NISQ systems. Despite moderate circuit depth, the ansatz exceeds current NISQ capabilities, which requires an evaluation by numerical simulations. While QRL may not significantly outperform classical approaches in solving the JO problem with respect to result quality (albeit we see parity), we find a drastic reduction in required trainable parameters. This benefits practically relevant aspects ranging from shorter training times compared to classical RL, less involved classical optimisation passes, or better use of available training data, and fits data-stream and low-latency processing scenarios. Our comprehensive evaluation and careful discussion delivers a balanced perspective on possible practical quantum advantage, provides insights for future systemic approaches, and allows for quantitatively assessing trade-offs of quantum approaches for one of the most crucial problems of database management systems. Y1 - 2024 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:898-opus4-76877 N1 - Corresponding author der OTH Regensburg: Maja Franz SP - 409 EP - 420 PB - IEEE ER - TY - JOUR A1 - Krüger, Tom A1 - Mauerer, Wolfgang T1 - Out of the Loop: Structural Approximation of Optimisation Landscapes and non-Iterative Quantum Optimisation JF - Quantum N2 - The Quantum Approximate Optimisation Algorithm (QAOA) is a widely studied quantum-classical iterative heuristic for combinatorial optimisation. While QAOA targets problems in complexity class NP, the classical optimisation procedure required in every iteration is itself known to be NP-hard. Still, advantage over classical approaches is suspected for certain scenarios, but nature and origin of its computational power are not yet satisfactorily understood. By introducing means of efficiently and accurately approximating the QAOA optimisation landscape from solution space structures, we derive a new algorithmic variant of unit-depth QAOA for two-level Hamiltonians (including all problems in NP): Instead of performing an iterative quantum-classical computation for each input instance, our non-iterative method is based on a quantum circuit that is instance-independent, but problem-specific. It matches or outperforms unit-depth QAOA for key combinatorial problems, despite reduced computational effort. Our approach is based on proving a long-standing conjecture regarding instance-independent structures in QAOA. By ensuring generality, we link existing empirical observations on QAOA parameter clustering to established approaches in theoretical computer science, and provide a sound foundation for understanding the link between structural properties of solution spaces and quantum optimisation. Y1 - 2025 U6 - https://doi.org/10.22331/q-2025-11-06-1903 N1 - Die Preprint-Version ist ebenfalls in diesem Repositorium verzeichnet unter: https://opus4.kobv.de/opus4-oth-regensburg/frontdoor/index/index/start/2/rows/10/sortfield/score/sortorder/desc/searchtype/simple/query/Out+of+the+Loop/docId/7938 VL - 9 PB - Verein zur Förderung des Open Access Publizierens in den Quantenwissenschaften ER - TY - CHAP A1 - Schönberger, Manuel A1 - Trummer, Immanuel A1 - Mauerer, Wolfgang T1 - Large-Scale Multiple Query Optimisation with Incremental Quantum(-Inspired) Annealing T2 - Proceedings of the ACM on Management of Data N2 - Multiple-query optimization (MQO) seeks to reduce redundant work across query batches. While MQO offers opportunities for dramatic performance improvements, the problem is NP-hard, limiting the sizes of problems that can be solved on generic hardware. We propose to leverage specialized hardware solvers for optimization, such as Fujitsu's Digital Annealer (DA), to scale up MQO to problem sizes formerly out of reach. We present a novel incremental processing approach that combines classical computation with DA acceleration. By efficiently partitioning MQO problems into sets of partial problems, and by applying a dynamic search steering strategy that reapplies initially discarded information to incrementally process individual problems, our method overcomes capacity limitations, and scales to extremely large MQO instances (up to νm1000 queries). A thorough and comprehensive empirical evaluation finds our method substantially outperforms existing approaches. Our generalisable framework lays the ground for other database use-cases on quantum-inspired hardware, and bridges towards future quantum accelerators. Y1 - 2025 U6 - https://doi.org/10.1145/3749171 VL - 3 IS - 4 PB - ACM ER -