@inproceedings{59337, abstract = {{Im Rahmen der Fortbildungsinitiative QuaMath beschäftige ich mich mit der Entwicklung von Fortbildungsaktivitäten für den Inhaltsbereich der analytischen Geometrie. Um dies zu realisieren, stellt sich zunächst die Frage: Über welche Expertise verfügen (angehende) Lehrkräfte zum verstehensorientierten Unterrichten von anaGeo.? Dazu spezifiziere ich ein gegenstandsbezogenes Expertisemodell (Prediger) für den Unterricht zur anaGeo., erhebe Vorwissen von (angehenden) Lehrkräften und erprobe Aus- und Fortbildungsaktivitäten in verschiedenen Stichproben zur Rekonstruktion von Orientierungen.}}, author = {{Herrmann, Janine}}, booktitle = {{Beiträge zum Mathematikunterricht 2024}}, keywords = {{Mathematikfortbildungen, analytische Geometrie, Expertise}}, location = {{Duisburg/Essen}}, publisher = {{LibreCat University}}, title = {{{Ansprüche an eine Fortbildung zur analytischen Geometrie}}}, year = {{2024}}, } @inbook{52616, abstract = {{Außerschulische Praktika sind trotz ihrer geografisch und historisch unterschiedlichen Ausgestaltungen konstanter Bestandteil der Lehrkräftebildung in Deutschland. Eine Diskussion ihres Beitrags zur Professionalisierung angehender Lehrkräfte steht ebenso aus wie ein Versuch, die Vielfalt der Ausgestaltungsmöglichkeiten darzulegen. Der vorliegende Band widmet sich beiden Leerstellen, indem zunächst aus theoretischer Perspektive diskutiert wird, welchen Stellenwert außerschulische Praktika im Rahmen der kontinuierlichen Professionsentwicklung im Lehramtsstudium einnehmen können. Anhand des Berufsfeldpraktikums in Nordrhein-Westfalen werden anschließend exemplarische Einblicke in verschiedene universitäre Praktikumskonzepte und vielfältige Projekte und Kooperationen gegeben sowie erste empirische Befunde zum Beitrag der außerschulischen Praxiserfahrungen dargestellt. Der Band vereint unterschiedliche wissenschaftliche und praxisorientierte Perspektiven und Zugänge aus der Erziehungswissenschaft, den Bildungs- und Sozialwissenschaften, der Allgemeinen Didaktik, mehreren Fachdidaktiken sowie der Professionalisierungsforschung. (DIPF/Orig.)}}, author = {{Beese, Melanie and Heil, Rebekka and Jahn, Stefanie and Moraitis, Anastasia and Salewski-Teßmann, Kerstin and Schubert, Julia}}, booktitle = {{Das Berufsfeldpraktikum als Professionalisierungselement. Grundlagen, Konzepte, Beispiele für das Lehramtsstudium}}, editor = {{Schöning, Anke and Heer, Michaela and Pahl, Michelle and Diehr, Frank and Parusel, Eva and Tinnefeld, Anja and Walke, Jutta}}, isbn = {{9783781526150}}, pages = {{213--220}}, publisher = {{Verlag Julius Klinkhardt}}, title = {{{Auf dem Weg zur Professionalisierung: Mehrperspektivische Umsetzung sprachbildender Projekte in schulischen und außerschulischen Kontexten.}}}, doi = {{10.35468/6068}}, year = {{2024}}, } @inproceedings{57816, abstract = {{TLS-Attacker is an open-source framework for analyzing Transport Layer Security (TLS) implementations. The framework allows users to specify custom protocol flows and provides modification hooks to manipulate message contents. Since its initial publication in 2016 by Juraj Somorovsky, TLS-Attacker has been used in numerous studies published at well-established conferences and helped to identify vulnerabilities in well-known open-source TLS libraries. To enable automated analyses, TLS-Attacker has grown into a suite of projects, each designed as a building block that can be applied to facilitate various analysis methodologies. The framework still undergoes continuous improvements with feature extensions, such as DTLS 1.3 or the addition of new dialects such as QUIC, to continue its effectiveness and relevancy as a security analysis framework.}}, author = {{Bäumer, Fabian and Brinkmann, Marcus and Erinola, Nurullah and Hebrok, Sven Niclas and Heitmann, Nico and Lange, Felix and Maehren, Marcel and Merget, Robert and Niere, Niklas and Radoy, Maximilian Manfred and Schmidt, Conrad and Schwenk, Jörg and Somorovsky, Juraj}}, booktitle = {{Proceedings of Cybersecurity Artifacts Competition and Impact Award (ACSAC ’24)}}, keywords = {{SSL, TLS, DTLS, Protocol State Fuzzing, Planning Based}}, location = {{Hawaii}}, title = {{{TLS-Attacker: A Dynamic Framework for Analyzing TLS Implementations}}}, year = {{2024}}, } @inproceedings{55137, abstract = {{Many countries limit their residents' access to various websites. As a substantial number of these websites do not support TLS encryption, censorship of unencrypted HTTP requests remains prevalent. Accordingly, circumvention techniques can and have been found for the HTTP protocol. In this paper, we infer novel circumvention techniques on the HTTP layer from a web security vulnerability by utilizing HTTP request smuggling (HRS). To demonstrate the viability of our techniques, we collected various test vectors from previous work about HRS and evaluated them on popular web servers and censors in China, Russia, and Iran. Our findings show that HRS can be successfully employed as a censorship circumvention technique against multiple censors and web servers. We also discover a standard-compliant circumvention technique in Russia, unusually inconsistent censorship in China, and an implementation bug in Iran. The results of this work imply that censorship circumvention techniques can successfully be constructed from existing vulnerabilities. We conjecture that this implication provides insights to the censorship circumvention community beyond the viability of specific techniques presented in this work.}}, author = {{Müller, Philipp and Niere, Niklas and Lange, Felix and Somorovsky, Juraj}}, booktitle = {{Proceedings on Privacy Enhancing Technologies}}, keywords = {{censorship, censorship circumvention, http, http request smuggling}}, location = {{Bristol}}, title = {{{Turning Attacks into Advantages: Evading HTTP Censorship with HTTP Request Smuggling}}}, year = {{2024}}, } @article{53207, abstract = {{Das schulische Wohlbefinden ist ein grundlegendes, sozio-emo- tionales Bedürfnis aller Schüler*innen und daher ein zentraler Qualitätsindikator inklusiver Schulen. Wenig ist bislang jedoch über die Entwicklung des schulischen Wohlbefindens in inklusiven Klassen der Sekundarstufe I bekannt. Im Rahmen ei- nes internen Evaluationsprozesses an der Laborschule Bielefeld, der inklusiven Ver- suchsschule des Landes Nordrhein-Westfalen, hat ein interdisziplinäres Team im Forschungs- und Entwicklungsprojekt „Wohlbefinden und Inklusion an der Labor- schule – eine Selbstreflexion“ die Selbsteinschätzungen der Schüler*innen hinsicht- lich ihres schulischen Wohlbefindens untersucht. Hierzu wurden alle Schüler*innen der Jahrgangstufen 6 bis 10 zwischen 2013 und 2018 jährlich zu einer Befragung eingeladen. Auf der Grundlage des zugehörigen, mit vielen Messzeitpunkten und hoher Beteiligungsquote ausgestatteten längsschnittlichen Datensatzes, wurden fürden vorliegenden Beitrag lineare und quadratische Verläufe des schulischen Wohl- befindens von Schüler*innen aus inklusiven Lerngruppen der Sekundarstufe I ver- gleichend analysiert. Unter Berücksichtigung von insgesamt sechs Komponenten des schulischen Wohlbefindens zeigt sich für zwei Komponenten eine lineare Entwicklung: Die Affinität zur Stammgruppe (bzw. zur eigenen Klasse) nimmt über die Sekundarstu- fe I leicht ab, ebenso die wahrgenommenen sozialen Probleme in der Schule. Die Verläufe der drei Komponenten Einstellungen und Emotionen gegenüber der Schule, schulischer Selbstwert und Sorgen wegen der Schule werden hingegen signifikant besser durch eine quadratische Modellierung abgebildet. Für diese zeigt sich mit zunehmender Jahrgangsstufe eine weniger ausgeprägte Abnahme (Einstellungen und Emotionen gegenüber der Schule, Abwesenheit von Sorgen wegen der Schule), der teilweise eine Zunahme in höheren Jahrgangsstufen folgt (schulischer Selbstwert). Das Ausmaß körperlicher Beschwerden verändert sich nicht signifikant in Abhängigkeit von der Jahrgangsstufe. Schulpädagogische Implikationen werden im Beitrag ebenso diskutiert wie die Perspektiven für künftige Forschung.}}, author = {{Marker, Rabea and Kullmann, Harry and Zentarra, Dominik and Geist, Sabine and Lütje-Klose, Birgit}}, journal = {{Unterrichtswissenschaft}}, keywords = {{Schulisches Wohlbefinden, Sekundarstufe I, Inklusion, Längsschnittstudie · Laborschule Bielefeld}}, pages = {{417--446}}, title = {{{Schulisches Wohlbefinden von Schüler*innen der Sekundarstufe I in inklusiven Lerngruppen – Analysen zum Entwicklungsverlauf an der Laborschule Bielefeld}}}, doi = {{10.1007/s42010-024-00199-0}}, volume = {{52}}, year = {{2024}}, } @article{53660, abstract = {{In this paper, a group of nine international scholars reflect on the collective responsibilities of stakeholders within inclusive educa- tional settings. This reflection was prompted by the need to identify specific elements which would support intentional, collective responsibility to support authentic inclusion for all students. In order to engender this collectivist mindset, mirroring the metaphor of the nurturing village, the group conducted a qualitative study based on structured and semi-structured dialogue, written reflec- tions and previously constructed research to inform a framework to support inclusivity more collectively. Results suggest that nurturing spaces, empathetic relationships, supportive networks and targeted teaching, all contribute to bona fide inclusion, especially if this responsibility is shared and cohesive. Data further revealed that inclusivity is a values-driven process which flourishes when all stakeholders subscribe to common values and tenets regarding socially just educational provision. The authors inculcate the vil- lage-mindset, a now popularly received notion, reinforcing the need for active and deliberate dialogue focusing on shared respon- sibilities and vision. In this paper, we intend to reiterate the need for educational systems which foster more collective, compassionate and nurturing inclusive practice in educational settings.}}, author = {{Subban, Pearl and Woodcock, Stuart and Bradford, Brent and Romano, Allesandra and Sahli Lozano, Caroline and Kullmann, Harry and Sharma, Umesh and Loreman, Tim and Avramidis, Elias}}, journal = {{Teachers and Teaching}}, keywords = {{Inclusive education, inclusive schools, collective responsibility, school community, village mindset}}, number = {{5}}, pages = {{668--683}}, title = {{{What does the village need to raise a child with additional needs? Thoughts on creating a framework to support collective inclusion}}}, doi = {{10.1080/13540602.2024.2338398}}, volume = {{30}}, year = {{2024}}, } @article{43135, abstract = {{Previous research has identified the importance of teacher attitudes and self-efficacy in supporting inclusive education. This study involved a multi-national exploration of a further dimension of inclusive education, collective efficacy, through the testing of a new tool, the Teacher Efficacy for Inclusive Practice-Collective (TEIP-C) Scale. The study also aimed to investigate whether teacher attitudes, self-efficacy, collective efficacy and intention to teach in inclusive classrooms differ across countries. Participants included 1,523 teachers from Canada, Greece, Italy and Switzerland. Results suggested a two-factor structure for the TEIP-C, Engagement, and Inclusive Pedagogies, with strong internal consistency for the scale. Several differences across countries were identified, with teachers from Italy reporting more positive attitudes towards inclusion and a greater intention to teach in inclusive classrooms. Implications of the study in terms of further strengthening inclusive practice are discussed.}}, author = {{Sharma , Umesh and Loreman , Tim and May , Fiona and Romano , Alessandra and Lozano , Caroline Sahli and Avramidis , Elias and Woodcock , Stuart and Subban , Pearl and Kullmann, Harry}}, journal = {{European Journal of Special Needs Education}}, keywords = {{Inclusive education, teacher attitudes, teacher self- efficacy, collective efficacy}}, number = {{2}}, pages = {{167–184}}, title = {{{Measuring collective efficacy for inclusion in a global context}}}, doi = {{10.1080/08856257.2023.2195075}}, volume = {{39}}, year = {{2024}}, } @misc{58263, author = {{Peckhaus, Volker}}, booktitle = {{zbMATH Open, Zbl. 07782971}}, title = {{{Schmidt, Gunther, Mathematik als Wissenschaft in der Gesellschaft. Historische Äußerungen und aktuelle Anregungen, Springer Spektrum: Berlin 2023, xiii, 263 S. }}}, year = {{2024}}, } @article{53661, abstract = {{Inclusive education is a key goal of modern educational reforms, yet its implementation is complex. This study examines the roles of teacher attitudes and self-efficacy in predicting their intentions to use inclusive practices across five western countries: Canada, Germany, Greece, Italy, and Switzerland. The study identified both significant differences and commonalities in prediction patterns across these countries. For instance, beliefs about inclusion varied in their significance, being the most influential predictor among Italian teachers, while managing challenging behaviour was a key predictor for Swiss teachers only. For the other predictors, no significant differences were found, and self-efficacy in collaboration was the strongest predictor nominally. The study suggests that, while aspects such as collaboration seem generally important across countries, effective strategies for promoting inclusive education may also need to be tailored to each country’s unique context, considering aspects of historical background of inclusive education, teacher training, and support. It also emphasizes the need to consider domain-specific aspects of teacher self-efficacy, as different facets differently affect teachers’ intentions.}}, author = {{Sahli Lozano, Caroline and Wüthrich, Sergej and Kullmann, Harry and Knickenberg, Margarita and Sharma, Umesh and Loreman, Tim and Romano, Alessandra and Avramidis, Elias and Woodcock, Stuart and Subban, Pearl}}, issn = {{1918-5227}}, journal = {{Exceptionality Education International}}, number = {{1}}, pages = {{17--41}}, title = {{{How Do Attitudes and Self-Efficacy Predict Teachers’Intentions to Use Inclusive Practices? A Cross-National Comparison Between Canada, Germany, Greece, Italy, and Switzerland}}}, doi = {{10.5206/eei.v34i1.16803}}, volume = {{34}}, year = {{2024}}, } @inbook{58137, author = {{Scharlau, Ingrid}}, booktitle = {{Wissenschaftsdidaktik als kritische Kommunikationsanalyse: Ein Sammelband zur Weiterführung eines Gedankens von Ludwig Huber}}, editor = {{Scharlau, Ingrid and Jenert, Tobias}}, isbn = {{9783847432296}}, keywords = {{Unterrichtsfach Psychologie, Psychologiedidaktik}}, publisher = {{Verlag Barbara Budrich}}, title = {{{Eine wissenschaftsdidaktische Analyse psychologischer Forschungsartikel und Lehrbücher}}}, doi = {{10.2307/jj.18255581.8}}, year = {{2024}}, } @inbook{46578, abstract = {{Multiobjective optimization plays an increasingly important role in modern applications, where several criteria are often of equal importance. The task in multiobjective optimization and multiobjective optimal control is therefore to compute the set of optimal compromises (the Pareto set) between the conflicting objectives. The advances in algorithms and the increasing interest in Pareto-optimal solutions have led to a wide range of new applications related to optimal and feedback control - potentially with non-smoothness both on the level of the objectives or in the system dynamics. This results in new challenges such as dealing with expensive models (e.g., governed by partial differential equations (PDEs)) and developing dedicated algorithms handling the non-smoothness. Since in contrast to single-objective optimization, the Pareto set generally consists of an infinite number of solutions, the computational effort can quickly become challenging, which is particularly problematic when the objectives are costly to evaluate or when a solution has to be presented very quickly. This article gives an overview of recent developments in the field of multiobjective optimization of non-smooth PDE-constrained problems. In particular we report on the advances achieved within Project 2 "Multiobjective Optimization of Non-Smooth PDE-Constrained Problems - Switches, State Constraints and Model Order Reduction" of the DFG Priority Programm 1962 "Non-smooth and Complementarity-based Distributed Parameter Systems: Simulation and Hierarchical Optimization".}}, author = {{Bernreuther, Marco and Dellnitz, Michael and Gebken, Bennet and Müller, Georg and Peitz, Sebastian and Sonntag, Konstantin and Volkwein, Stefan}}, booktitle = {{DFG Priority Programme 1962}}, publisher = {{Birkhäuser}}, title = {{{Multiobjective Optimization of Non-Smooth PDE-Constrained Problems}}}, year = {{2024}}, } @inproceedings{42160, abstract = {{The goal of this paper is to make a strong point for the usage of dynamical models when using reinforcement learning (RL) for feedback control of dynamical systems governed by partial differential equations (PDEs). To breach the gap between the immense promises we see in RL and the applicability in complex engineering systems, the main challenges are the massive requirements in terms of the training data, as well as the lack of performance guarantees. We present a solution for the first issue using a data-driven surrogate model in the form of a convolutional LSTM with actuation. We demonstrate that learning an actuated model in parallel to training the RL agent significantly reduces the total amount of required data sampled from the real system. Furthermore, we show that iteratively updating the model is of major importance to avoid biases in the RL training. Detailed ablation studies reveal the most important ingredients of the modeling process. We use the chaotic Kuramoto-Sivashinsky equation do demonstarte our findings.}}, author = {{Werner, Stefan and Peitz, Sebastian}}, booktitle = {{European Control Conference (ECC)}}, pages = {{2958--2964}}, publisher = {{IEEE}}, title = {{{Numerical evidence for sample efficiency of model-based over model-free reinforcement learning control of partial differential equations}}}, doi = {{10.23919/ECC64448.2024.10590945}}, year = {{2024}}, } @inproceedings{48502, abstract = {{The prediction of photon echoes is an important technique for gaining an understanding of optical quantum systems. However, this requires a large number of simulations with varying parameters and/or input pulses, which renders numerical studies expensive. This article investigates how we can use data-driven surrogate models based on the Koopman operator to accelerate this process. In order to be successful, we require a model that is accurate over a large number of time steps. To this end, we employ a bilinear Koopman model using extended dynamic mode decomposition and simulate the optical Bloch equations for an ensemble of inhomogeneously broadened two-level systems. Such systems are well suited to describe the excitation of excitonic resonances in semiconductor nanostructures, for example, ensembles of semiconductor quantum dots. We perform a detailed study on the required number of system simulations such that the resulting data-driven Koopman model is sufficiently accurate for a wide range of parameter settings. We analyze the L2 error and the relative error of the photon echo peak and investigate how the control positions relate to the stabilization. After proper training, the dynamics of the quantum ensemble can be predicted accurately and numerically very efficiently by our methods.}}, author = {{Peitz, Sebastian and Hunstig, Anna and Rose, Hendrik and Meier, Torsten}}, booktitle = {{IEEE 63rd Conference on Decision and Control (CDC)}}, pages = {{7964--7969}}, title = {{{Accelerating the analysis of optical quantum systems using the Koopman operator}}}, doi = {{10.1109/CDC56724.2024.10886589}}, year = {{2024}}, } @inproceedings{55431, author = {{Gräßler, Iris and Özcan, Deniz}}, booktitle = {{Automation 2024}}, isbn = {{9783181024379}}, pages = {{363–374}}, publisher = {{VDI Verlag}}, title = {{{Anwendungspotenziale von Künstlicher Intelligenz im Model-Based Systems Engineering für automatisierte Systeme}}}, doi = {{10.51202/9783181024379-363}}, volume = {{2437}}, year = {{2024}}, } @inproceedings{54540, abstract = {{System models are used to merge relevant engineering artefacts and relationships. Therefore, a high model quality must be ensured. Currently, there is no method for defining company-specific metrics to assess system model quality. In a six-step research approach, a method is defined: (1) literature analysis on quality assessment approaches, (2) derivation of success factors, (3) evaluation of approaches, (4) development of a method, (5) application in automotive industry, and (6) evaluation. The method supports system engineers to derive tailored metrics to objectively assess the model quality.}}, author = {{Gräßler, Iris and Wiechel, Dominik and Özcan, Deniz and Taplick, Patrick}}, booktitle = {{Proceedings of the Design Society}}, issn = {{2732-527X}}, pages = {{2545--2554}}, publisher = {{Cambridge University Press (CUP)}}, title = {{{Tailored metrics for assessing the quality of MBSE models}}}, doi = {{10.1017/pds.2024.257}}, volume = {{4}}, year = {{2024}}, } @book{34544, abstract = {{Tax evasion, tax avoidance and tax resistance are widespread phenomena in political, economic, social and fiscal history from antiquity through medieval, early modern and modern times. Histories of Tax Evasion, Avoidance and Resistance shows how different groups and individuals around the globe have succeeded or failed in not paying their due taxes, whether in kind or in cash, on their properties or on their crops. It analyses how, throughout history, wealthy and poor taxpayers have tried to avoid or reduce their tax burden by negotiating with tax authorities, through practices of legal or illegal tax evasion, by filing lawsuits, seeking armed resistance or by migration, and how state authorities have dealt with such acts of claim making, defiance, open resistance or elusion. It fills an important research gap in tax history, addressing questions of tax morale and fairness, and how social and political inequality was negotiated through taxation. It gives rich insights into the development of citizen-state relationships throughout the course of history. The book comprises case studies from Ancient Athens, Roman Egypt, Medieval Europe, Early Modern Mexico, the Ottoman Empire, Nigeria under British colonial rule, the United Kingdom of the early 20th century, Greece during the Second World War, as well as West Germany, Switzerland, Sweden and the United States in the 20th century, including transnational entanglements in the world of late-modern offshore finance and taxation. The authors are experts in fiscal, economic, financial, legal, social and/or cultural history. The book is intended for students, researchers and scholars of economic and financial history, social and world history and political economy. The Open Access version of this book, available at www.taylorfrancis.com, has been made available under a Creative Commons Attribution-Share Alike 4.0 license.}}, author = {{Schönhärl, Korinna and Hürlimann, Gisela and Rohde, Dorothea}}, isbn = {{9781003333197}}, keywords = {{Tax History, Financial History}}, publisher = {{Routledge}}, title = {{{Histories of Tax Evasion, Avoidance and Resistance}}}, doi = {{10.4324/9781003333197}}, year = {{2023}}, } @inbook{34546, abstract = {{Jean Bodin's list on how the absolutist monarchical state could raise its revenue ranked taxation only in seventh place. From a modern legal perspective, taxes are compulsory transfers of resources that households and enterprises pay to one or several government bodies without receiving an individual, specific benefit in return. Historians have dealt with not paying taxes in various contexts, such as analysing tax resistance and tax resistance movements in history. Tax law is best understood as an outcome of long-term, often conflictual, negotiations and as an expression of specific political mentalities and ideologies. As a consequence, tax law and sometimes even the tax juridical system have a strongly politicised character. Loopholes in tax legislation that enable or facilitate avoidance or evasion can thus be regarded as a result of the interest-driven politics of parliamentary majorities, as the success of concerted lobby pressure.}}, author = {{Schönhärl, Korinna and Hürlimann, Gisela and Rohde, Dorothea}}, booktitle = {{Histories of Tax Evasion, Avoidance and Resistance }}, editor = {{Schönhärl, Korinna and Hürlimann, Gisela and Rohde, Dorothea}}, pages = {{1--15}}, publisher = {{Routledge}}, title = {{{ The Ability and Intention of Not Paying Taxes in History. Some Introductory Observations}}}, doi = {{10.4324/9781003333197}}, year = {{2023}}, } @inbook{34547, abstract = {{As a case study, this chapter examines two tax education films that were produced 11 years apart in the USA and Western Germany during and after World War II: “The New Spirit” and “Putzke wants to know”. In contrast to America's most popular cartoon character 11 years earlier, Erwin Putzke is in a terrible mood at the beginning of the short film “Putzke wants to know”. The family father and electrician with a workshop of his own is annoyed and upset by the duty of filling in his tax return, grumbling at his wife and daughter and even at their budgie. The film's tax morale message is conveyed to its audience against the backdrop of a sober post-war reality characterised by allied occupation and the Allies' say in West German tax policies during a period of laborious economic build-up after a lost war.}}, author = {{Schönhärl, Korinna}}, booktitle = {{Histories of Tax Evasion, Avoidance and Resistance}}, editor = {{Schönhärl, Korinna and Hürlimann, Gisela and Rohde, Dorothea}}, pages = {{154--167}}, publisher = {{Routledge}}, title = {{{ How to Create a Taxpaying Spirit. A Transnational Examination of an US American and a Western German Tax Education Film in and after World War II}}}, doi = {{10.4324/9781003333197}}, year = {{2023}}, } @article{21199, abstract = {{As in almost every other branch of science, the major advances in data science and machine learning have also resulted in significant improvements regarding the modeling and simulation of nonlinear dynamical systems. It is nowadays possible to make accurate medium to long-term predictions of highly complex systems such as the weather, the dynamics within a nuclear fusion reactor, of disease models or the stock market in a very efficient manner. In many cases, predictive methods are advertised to ultimately be useful for control, as the control of high-dimensional nonlinear systems is an engineering grand challenge with huge potential in areas such as clean and efficient energy production, or the development of advanced medical devices. However, the question of how to use a predictive model for control is often left unanswered due to the associated challenges, namely a significantly higher system complexity, the requirement of much larger data sets and an increased and often problem-specific modeling effort. To solve these issues, we present a universal framework (which we call QuaSiModO: Quantization-Simulation-Modeling-Optimization) to transform arbitrary predictive models into control systems and use them for feedback control. The advantages of our approach are a linear increase in data requirements with respect to the control dimension, performance guarantees that rely exclusively on the accuracy of the predictive model, and only little prior knowledge requirements in control theory to solve complex control problems. In particular the latter point is of key importance to enable a large number of researchers and practitioners to exploit the ever increasing capabilities of predictive models for control in a straight-forward and systematic fashion.}}, author = {{Peitz, Sebastian and Bieker, Katharina}}, journal = {{Automatica}}, publisher = {{Elsevier}}, title = {{{On the Universal Transformation of Data-Driven Models to Control Systems}}}, doi = {{10.1016/j.automatica.2022.110840}}, volume = {{149}}, year = {{2023}}, } @article{47994, abstract = {{Coherent nonlinear optical μ-spectroscopy is a frequently used tool in modern material science as it is sensitive to many different local observables, which comprise, among others, crystal symmetry and vibrational properties. The richness in information, however, may come with challenges in data interpretation, as one has to disentangle the many different effects like multiple reflections, phase jumps at interfaces, or the influence of the Guoy-phase. In order to facilitate interpretation, the work presented here proposes an easy-to-use semi-analytical modeling Ansatz, which bases upon known analytical solutions using Gaussian beams. Specifically, we apply this Ansatz to compute nonlinear optical responses of (thin film) optical materials. We try to conserve the meaning of intuitive parameters like the Gouy-phase and the nonlinear coherent interaction length. In particular, the concept of coherence length is extended, which is a must when using focal beams. The model is subsequently applied to exemplary cases of second- and third-harmonic generation. We observe a very good agreement with experimental data, and furthermore, despite the constraints and limits of the analytical Ansatz, our model performs similarly well as when using more rigorous simulations. However, it outperforms the latter in terms of computational power, requiring more than three orders less computational time and less performant computer systems.}}, author = {{Spychala, Kai J. and Amber, Zeeshan H. and Eng, Lukas M. and Rüsing, Michael}}, issn = {{0021-8979}}, journal = {{Journal of Applied Physics}}, keywords = {{General Physics and Astronomy}}, number = {{12}}, publisher = {{AIP Publishing}}, title = {{{Modeling nonlinear optical interactions of focused beams in bulk crystals and thin films: A phenomenological approach}}}, doi = {{10.1063/5.0136252}}, volume = {{133}}, year = {{2023}}, }